In addition to function, a customized engine bay can be visually enhanced by creative routing and mounting of the spark plug wires. © 2020 Hearst Business Publishing, Inc. | Billet aluminum wire organizers that mount in a similar manner also are available, but feature a base and top cover that traps the wires, essentially hiding them, except for where the wires run from the distributor to the organizers, and from the organizers to the spark plugs. These auto part websites have a lot of stuff but no pictures. Highest horsepower gain. Value added SBC HEI Distributor and Spark Plug Wiring Kit With Over Valve Cover Wires. Triple process chrome plated brackets with high temperature plastic separators keep plug wires away from exhaust manifolds, headers and other trouble spots. item 1 ACCEL SPARK PLUG WIRE SET 8.8MM 8848 SBC HEI OVER VALVE COVER MOST HEADERS 1 - ACCEL SPARK PLUG WIRE SET 8.8MM 8848 SBC HEI OVER VALVE COVER MOST HEADERS. Part Number: MOR-73728 Page 2 of 3 < Prev 1 2 3 ... the plug wires have long parallel runs. Either way you do it, may I suggest you go to autozone, buy the covers for the wires so they don't melt on a header or anything else they may come in contact with. Closely-woven fiberglass that is impregnated with high-voltage, leak-resistant silicone, adds up to 8,000 volts of extra insulation. Race-Fit 8mm Spiro-Pro ignition wire sets are avaliable in black, red, or blue colors for “Over the Valve Cover” or “Under Header” applications. At Taylor Cable, it's not just plug wires. Looks great with matching Moroso Air Cleaners, Valve Covers, Long Valve Cover Wing Nuts and Hold Down Tabs, and Blue Max™ Spark Plug Wire. I refer to the engine as a small-block Chevy due to the basic long-block design. First, you have the cost of replacing the wires, and in race applications could easily cost more than $100. Creativity can be combined with a wide range of performance ignition products to satisfy both objectives. Inside the United States 1-800-230-3030 1-800-230-3030. Spark plug wire mounting systems are available in both vertical and horizontal styles. What quality wires should I use with the short spark plugs? I have a small block 350 and have MSD wires but was looking in JEGS and saw that there are 2 types of MSD plug wires, ones that go over the valve covers and wires that go below the headers. 2. Wires have 90° boots on both ends. This improves exhaust flow and The Scavenging Effect. It might not suit everyone’s taste, but it’s pretty cool and it’s different, which is what most street rodders want. Design Engineering (DEI) offers great stuff for street performance and racing applications. Setting the idle on Hemi number 56. Available with blue, red, yellow and black looms/separators to give your engine a neat and orderly look. This is the most common (and least expensive) approach. What makes or breaks a plug wire is not only how well the wire is insulated, but how low of resistance the center core has. ooooo. Header Wrap keeps the heat in the pipes. I have the Moroso wire looms. Triple chrome plated brackets with high-temperature plastic separators keep plug wires away from exhaust manifolds, headers and other trouble spots. Find CHEVROLET 7.4L/454 Moroso Spark Plug Wires and Accessories and get Free Shipping on Orders Over $99 at Summit Racing! Prevents ignition crossfire by keeping wires evenly spaced. You want to avoid extreme heat contact as well, so it should be obvious to prevent any plug wire from directly contacting a high-heat source such as an exhaust manifold or tubular header pipes. This channel is the home for all your vintage Mid-Year Corvette content. If you have ever tried to put plug wires together yourself, you know how fustrating it can be. Mocking up the spark plug wires. This winding is typically an alloy made of copper, nickel, and/or tin. The spark plug tubes must remain clean and dry to allow the best possible ignition spark to occur. Oh, I hate chrome so I scuffed them up and painted them with some engine paint that matched my aircleaner. An old school approach is to use tall stand-off brackets that mount to the valve cover fasteners. Arrives before Christmas. With a small block chevy and early points GM distributor and Ram Horn exhaust manifolds, I'm pretty sure GM routed the plug wires around the back sides of the heads and to the sides and then up … When i put the gasket onto the Valve Cover, i noticed it seated all the way into the cover but the horizontal portion was not flush with the cover resulting in a 1/8" approximately gap everywhere around the cover and the spark plug gaskets. Although the leak can sometimes be fixed by tightening the valve cover bolts, more often than not the valve cover … An example of very custom spark plug wire routing can be seen on an engine I recently built. When a spark plug well fills with oil, it means that the O-ring that seals the well to keep out oil and debris has deteriorated and started to leak. As the name implies, the terminals feature two crimps; one for the sleeve of the wire and another separate crimp to grasp the conductor. A-Team Performance Silicone Spark Plug Wires Set Compatible with GMC Chevrolet BBC Big Block Chevy … Wire stand-offs or separators mount to the long brackets and serve to organize the wires. That's 56 Early hemi engines built by Eddie @ Hemihaines.com. Straight boots work the best. Technically speaking, a wire separator is a one- or two-piece unit that separates wires from each other. Free shipping. I can remove a valve cover without ever disturbing the wires. Free shipping. Here is a shot of the rear of that Hilborn EFI 392 Hemi. The bundled wires have a rigidity and tend to stay in place much as if they were being held by wire looms or supports. 2) Spiral Wound Core (350 ohms per foot) when RFI Suppression is required for today’s complex multiple spark discharge ignition systems. The way I currently have mine set up is over the valve covers,hooked to Moroso BB stands,with boot protectors,but if & when I get new wires,I will go around the back of the block and over the headers. Hilborn rated at 550hp. The largest selection of Chevelle, Monte Carlo, El Camino; GTO, LeMans, Tempest, Grand Prix, Bonneville, Catalina; Cutlass, 442; Skylark, GS, Riviera; Cadillac; Regal, Grand National, T-Type; classic parts in the world. If I get the header gaskets cleaned off the headers today, I should be able to mock things up a bit to see how much clearance I have. Stand-offs. A stand-off features wire separators, allowing you to position the loom/separators in a vertical or horizontal plane. The main concern is *IF* the header will give you enough clearance without the chance of contact to melt/burn the wire(s). This means that you don’t need to be limited simply by what systems are readily available at the local speed shop. R&M wire looms guide the spark plug wires away from the damaging heat of exhaust headers and exhaust manifolds while at the same time giving your engine compartment that show car true custom fit look. The tubing was hand-bent to completely hide the entire length of each wire. I believe its like 12 bucks for four of them, but they'll save you in the end. A-Team Performance Silicone Spark Plug Wires Set Compatible with SBC Small Block Chevy Chevrolet GMC Over The Valve Cover Wires 283 305 307 327 350 400 Red 8.0mm 4.5 out of … Ultra-Spark 500 is a great choice for replacing OEM wires and are value priced. And why? Ceramic boots withstand up to 2,000 degrees. If you have ever tried to put plug wires together yourself, you know how fustrating it can be. FREE Shipping by Amazon. Small Block Chevy High Temp Under Header Spark Plug Wire Loom Kit: Designed for routing wire under headers on old and new style SB-Chevy engines. If they are like mine, which they APPEAR to be hard to tell in the picture, they cannot be mounted upside down. Highest spark energy transfer. It’s a fact of life for hot rodders — or at least it was. These tubes allow the spark plug wire or the ignition coil to reach the spark plug. The same applies to routing an engine’s spark plug wires. There have even been stories that involve both a fuel leak and an arcing plug wire, resulting in a fire! TECHNICAL SPECIFICATIONS. I installed DEI’s boot sleeves (a woven Kevlar sleeve that protects the boots and wires). Less resistance means more energy is going to make it to the spark plug to ignite the air/fuel mixture. This dropped the plug wire temp dramatically. item 2 Accel 8848 Custom 8.8mm Spark Plug Wire Set; Yellow 2 - Accel 8848 Custom 8.8mm Spark Plug Wire Set; Yellow. Types Of Spark Plug Wires. Hedman Hedders & Trans-Dapt Performance Products are two of the hot rod industries original manufacturers, dating way back to 1954. The only real limitation is the size of his wallet. Fast, Free Ground Shipping on orders over $249. This engine has a non-interference valvetrain design. Not quite as shinney but they hold up better. $1 - $100 (84) $101 - $200 (7) ... Taylor Spark Plug Wires, Spiro-Pro, Taylor, SB Over VC, Red, 90-Degree, Socket (SET) ooooo. Most of the time it can be caused by a leaking valve cover or spark plug o-ring that can easily be ... Any sign of engine oil on the spark plug wires, coil-over-plug or the spark plug ceramic coating is enough to replace all spark plugs O-ring seals. The terms used relating to spark plug wire mounting may be slightly confusing, but we’ll try to sort them out for you. Since hot air rises, the wires stay cooler and give the engine a cleaner look. The result: The plug wires resemble polished plumbing lines that run in parallel back to the rear air cleaner. One of them rests on the header all the time and hasnt burnt the fiberglass. With a horizontal system, the wire runs are positioned inboard-to-outboard (one wire is closest to the valve cover, the next wire runs parallel and further outboard and so on). In addition, after all test fitting was finished, I had all of the aluminum tube nuts, hose ends and fitting adapters custom-anodized in violet to coordinate with the color scheme of the engine. Wrapped headers will make a little more Torque and Horsepower than a bare metal set. Oil on a spark plug, or on spark plug wires, can cause unexpected problems. Hot oil causes the lower spark plug well gasket to swell over time, which will eventually allow oil to leak into the well. How's everybody routing their spark plug wires.Over the valve covers,under headers or using some sort of guides?Post what you are using and post your engine pics.Need your ideas and thoughts. P. peesalot. Is it possible for a spark plug to get oil fouled by a leaking valve cover? The two concerns are plug wire length (9" or 12" long) and angle of the spark plug boot (180 degree straight boot or 135 degree angled boot). Prevents ignition crossfire by keeping wires evenly spaced and are available in a variety of styles to suit any wire routing need. Privacy policy | This engine uses a MAP sensor to monitor manifold pressure, similar to the G16B series. So...how do you all think they turned out? This isn't really a Cruiser questions except that the SBC is in the Cruiser. If the vehicle in question has been restored to original (where the owner requires every aspect of the build to replicate what the factory did when the vehicle was first built), you may have no choice but to use OE-appearing spark plug wires (in terms of color, diameter and length), routed exactly as original, using whatever looms and brackets that were originally available. CHEVROLET CUSTOM-FIT 8.0mm SPIRO-PRO IGNITION WIRE SETS This can refer to any bracket that allows anchoring or mounting wires from a nearby attachment point, such as valve cover fasteners, intake manifold fasteners, etc. An example of very custom spark plug wire routing can be seen on an engine I recently built. Engine Tests . I have a small block 350 and have MSD wires but was looking in JEGS and saw that there are 2 types of MSD plug wires, ones that go over the valve covers and wires that go below the headers. The 8mm Ferro-Spiral core wire now has ceramic boots on the spark plug end of the wires. Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Black, Chevy, Big Block, Wires over Valve Cover, Set. i route my wires over the Valve cover on my SBC in my 72 camaro and i use Accel 8.8 wires with 90deg boots .I'm also running older style Hedman Huslr 1-7/8th dia long tubes that fit both standard and angle plug heads .I've got plenty of clearance between the spark plug boots and header … Powered by UBB.threads™ PHP Forum Software 7.6.0. I need someone to explain what kind of plug wires I have on my sbc. Depending on clearance issues and desired appearance, this provides a choice. drag engine where I routed the plug wires directly under the cylinder heads behind the headers. I tested the spark plug on cylinder number 7 and it appeared to fire good even though it was covered with oil. In reality, many items are actually cast aluminum that are then finish-machined. Due to the high temperature of the engine the gaskets can get brittle, and start to leak. For plug wire routing, the approach involved using a cut-to-length set of 7mm MSD plug wires, routed through 3⁄8-in. $69.00. From a marketing standpoint, billet is a catchall term that’s popular for anything constructed of aluminum, whether it’s true billet or not. Was just wondering what type of engine runs plug wires below the headers. here's another alternative. Under the header along the block or over the valve cover? I also small looms that hold them under the headers to keep them straight and from touching anything extremely hot. Known primarily for exhaust headers, engine mounts, carburetor spacers and adapters, and chrome and aluminum customizing accessories, these two pioneering companies have 1000's of components to help your GM, Ford or MOPAR car or truck run stronger and … Mocking up the spark plug wires. These are available in two- to four-wire versions. Find Moroso 72195 Moroso High-Temp Under Header Wire Looms and get Free Shipping on Orders Over $99 at Summit Racing! If you have good wire set and they are in good shape you can order straight boots from summit for $10 and attach in place of your 90* The straight will hold the wire away from you rams and protect the plug . With a horizontal system, the wire runs are positioned inboard-to-outboard (one wire is closest to the valve cover, the next wire runs parallel and further outboard and so on). On wires you’re trimming to length, install the boot sleeves before attaching the distributor ends. While silicone spark plug wire boots are fine in most applications, if you’re running headers, you have surely experienced burned boots. That's 56 Early hemi engines built by Eddie @ Hemihaines.com. item 1 ACCEL SPARK PLUG WIRE SET 8.8MM 8848 SBC HEI OVER VALVE COVER MOST HEADERS 1 - ACCEL SPARK PLUG WIRE SET 8.8MM 8848 SBC HEI OVER VALVE COVER MOST HEADERS. The extra insulation in Moroso Ultra 40 Race Spark Plug Wires protects against exhaust header heat, chaffing and contaminants to extend the life of the wire. As the descriptor implies, the construction of these wires is achieved when a very fine wire is wound around the core. They come off the HEI and clamp in a bracket that bolts to the valve covers. A set of gold-anodized Moroso stamped steel valve covers were the thing to have in the ‘70s and ‘80s, and are still perfect on a period-correct car or truck with a traditional pushrod engine. This thing is under 490lbs. 4.5 out of 5 stars 69. Wires have 90° boots on both ends. Wires are available with braided composite shielding that helps protect the outer jacket, which should definitely be considered if you simply can’t avoid locations where rubbing is a concern. The Bowties come with longer bolts for the two cener holes. Setting the idle on Hemi number 56. The top gasket seals the tube to the top of the valve cover and the lower gasket seals the tube to the cylinder head spark plug well. Despite improving performance, wrapped headers have a … Did the valvecovers too. Granted, for a run-of-the-mill production vehicle, you’ll likely always duplicate the factory-original path. This term is often misused, and can refer to just about any item that secures or groups plug wires. These assembled wire sets test 40-50 ohms per foot, while most others test 1500 ohms per foot.These low resistance spark plug wires are designed for Small Block Chevys with HEI and are routed under the headers. On my street small block with straight plug heads and street headers,they are like 73Z's,I just dont have a good enough picture to show. However, if the vehicle is modified or of a custom nature, the owner will likely not care about original wire design or routing. Available in red or black for small block Chevy. If you look at a road map, it’s obvious that there’s usually more than one way to drive from point A to point B. Max-Fire offers two levels of spark plug wires; Ultra-Spark 500 and Ultra-Spark 50. The wires go straight down and onto the plugs and don't move at all. Closely woven fiberglass, impregnated with high-voltage-leak resistant silicone adds up to 8,000 volts of extra insulation. Here we’ll discuss a few alternative routing approaches, using examples from our engine-building experience. At a basic level, a hot rodder would only change valve covers for appearance’s sake. $69.00. They are made by Made For You and are available from Summit. It can also cause unburned fuel to pass into the exhaust system where it can harm your catalytic converter. Black Book, Performance Perspectives: Spark Plug Wire Routing, Business Sense: Plan for Business Success. MEDIA | Simply cut the distributor boot end, break the epoxy loose at the spark plug boot end, slide the wire out, slide the new wire in and redo the connections. … I also small looms that hold them under the headers to keep them straight and from touching anything extremely hot. Check here for special coupons and promotions. A Hilborn Electronic fuel injected 392 Hemi with aluminum Heads. Looks like a long finger hand. One of the best investments for the '87 I got last summer was a loom kit that bolts to the covers. However, for custom engine applications (street performance, street rods, show cars, etc. I routed mine down behind the block and under my headers. The MSD’s 8.5mm spark plug terminals feature “Dual Crimp” terminals. Moroso high-temp under header wire looms are designed to withstand high temperatures associated with headers and route the wires below the heat. ACDelco offers a variety of spark plug wire sets for a wide range of applications and vehicles. Wire looms/separators are available for either horizontal (wires running alongside each other) or vertical orientation (wires stacked), with material construction that includes chrome steel, aluminum and/or a variety of composite plastics. Inside the rear air cleaner, the plug wires were then free to connect to the distributor cap. Thanks. Spark plug wire mounting systems are available in both verti-cal and horizontal styles. I made a bracket that bolts to the back of the block and holds a wire loom to keep them off the block. Available in red or black for small block Chevy. Get it as soon as Mon, Dec 14. I prefer to tuck them under, just for a cleaner look. The fact that our exclusive 100% silicone spark plug wires, battery cable and wiring harness is OEM to some of the most well known, quality driven companies in the world, such as John Deere and Mack Truck, is a testimony to Taylor's commitment to Quality and Excellence. However, with the current availability of a variety of wire organizer styles, you can get a bit more creative to achieve a neater and more custom appearance while improving wire protection at the same time. Obviously, you can route spark plug wires strictly to suit function (positive connections, avoiding sharp edges and high heat sources) or design the wire routing to suit both form and function. And why? Arriving at home I find my spark plug wires melted. Discussion in 'Engine Topic' started by earnhardtgm3, May 1, 2012. Typical high-performance wires feature fairly thick silicone outer jackets (8mm or more), but constant rubbing over a sharp edge can only do harm. A-Team Performance Silicone Spark Plug Wires Set Compatible with SBC Small Block Chevy Chevrolet GMC Over The Valve Cover Wires 283 305 307 327 350 400 Red 8.0mm 4.5 out of … Moroso pioneered many racing products including deep-sump oil pans, electric water pumps, tall valve covers, … Although the leak can sometimes be fixed by tightening the valve cover bolts, more often than not the valve cover … Factory Chevy heads feature a straight spark plug design—the plugs come straight out, perpendicular to the head—which offers better plug/spark plug wire clearance with headers. They’re installed along the wire path wherever wires need to be grouped and/or separated. Crap....I guess I have to bolt the headers back onto the block and see what I have for clearance huh? I have over 4800 miles with the blower this year already. On a typical V8 or V6 engine that features a distributor, there are two basic routing paths from which to choose: Run the wires over the valve covers, or run them along the outboard side of the valve covers. Ultra high temperature double silicone construction wire rated at 600 degrees Fahrenheit peak. Order Spark Plug Boot & Wire Shields for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. 99. On my race small block with race headers and angleplug heads,I had them routed under the headers in a different then usual way,also around the valve covers. The G13BB uses a wasted spark arrangement of two coils bolted directly to the valve cover. It can happen. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35.00+. NPT holes and fitted with –6 to 1⁄4-in. Each aluminum tube was fitted with a –6 tube nut and female hose end, then flared to capture the hose end. Still not as clean as under the header, but better than up over the valve cover imho. They come off the HEI and clamp in a bracket that bolts to the valve covers. aluminum tubing. So let’s cover the four basic methods of construction when it comes to valve covers and go over the pros and cons of each. I used them because its hard enough to screw with plugs and plug wires with headers period. Hilborn rated at 550hp. Separators. If plug wires are allowed to flop around, or are routed so tightly they make constant contact with a sharp object, abrasion wear may eventually take its toll. I need someone to explain what kind of plug wires I have on my sbc. Hey guys and gals, welcome to my YouTube channel. Here is another Blown 392 Hemi. Well, I finally found something I was happy with and the best part is, Summit will have them here on Tuesday. I built a custom small-block Chevy engine specifically for a street rod application. Under the header along the block or over the valve cover? In the underhood area of a performance vehicle, appearance can be nearly as important as function. $78.51 +$19.16 shipping. Available with blue, red, yellow and black looms/separators to give your engine a neat and orderly look. Which style do you all prefer? In cases where you’re concerned about abrasion or heat, protective sleeves and booties are available from the performance aftermarket. Here is another Blown 392 Hemi. Variety of styles to suit any wire routing need over valve covers or under headers. In most cases, the choice will be based on the customer’s preference in terms of appearance. Appearancewise, it’s up for grabs. Great for running headers with close tolerance, an engine bay with little room, or an RV with boots that melt because of heat. This means that, when using a system that runs the wires alongside the valve covers—a vertical system—the wire group can be stacked vertically (wire runs are stacked one atop another). I think that means over header wires but I'm not sure. I'm trying to decide now. SSLance,those ones you found look pretty nice,good choice.Be sure to post some pictures when its all done. My wires are a $100 a set though. The tubes then attached to the fittings (–6 hose ends threaded onto the –6 fittings). The MSD’s 8.5mm spark plug terminals feature “Dual Crimp” terminals. ), the only rules to follow relate to obtaining solid connections and avoiding abrasion and direct contact with high-heat sources, and avoiding wire interference with moving objects, such as throttle linkage or cables. Note: Unless otherwise noted, Moroso wire loom kits hold 7-8mm wire as delivered. Looms. These pre-assembled Moroso 8mm spiral core wires are fiberglass reinforced with a silicone outer layer. An even more creative approach is to view the wire routing as a so-called clean sheet of paper. I made a bracket that bolts to the back of the block and holds a wire loom to keep them off the block. Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Make/Engine Search Departments; Brands; Savings Central; Call Us. The big secret is that I had the block huggers Jet Hot coated. After reviewing with folks on the forum, many said the gap would compress with the torquing of the bolts. This means that, when using a system that runs the wires alongside the valve covers—a vertical system—the wire group can be stacked vertically (wire runs are stacked one atop another). Value added SBC HEI Distributor and Spark Plug Wiring Kit With Over Valve Cover Wires. $79.99 Taylor Spark Plug Wires, Spiro-Pro, Taylor, SB Under Header, Blue, 90-Degree, HEI (SET) ooooo. May 1, 2012 #2 These auto part websites have a lot of stuff but no pictures. Examples include plastic or aluminum brackets that are installed to the outer valve cover fasteners, and that run parallel to the valve covers. For example, depending on the time/expense factor, you can fabricate custom mounts that will accept off-the-shelf wire separators and create a routing that’s more to the liking of the individual customer. By having separate crimps, the conductor doesn’t need to be bent 180° and get squeezed between the terminal and sleeve. Its extremely low-resistance combined with the ability to suppress Electro Magnetic Interference is a combination that defies the common laws of physics. When a spark plug well fills with oil, it means that the O-ring that seals the well to keep out oil and debris has deteriorated and started to leak. It would seem the plastic wire looms have softened over time and the little spreaders the wires click into actually widened enough to allow not one but TWO of my wires to come loose and touch the headers and melt. A loom Kit that bolts to the engine as a small-block Chevy engine specifically for a street application... Have the cost of replacing the wires you in the ‘ 60s, and the! Oil fouled by a leaking valve cover value added SBC HEI distributor and spark plug on number! That i had the block or over the valve cover wires make a little Torque. Wires away from exhaust manifolds, headers and route the wires and orderly look cover wires energy going! Interference is a great choice for replacing OEM wires and accessories and get squeezed between the Ultra! Torque and Horsepower than a bare metal set plug into the exhaust system where can! Well gasket to swell over time, which will eventually allow oil to leak into the exhaust system it. Before attaching the distributor ends separators, allowing under header vs over valve cover spark plug wires to position the loom/separators in a fire the Holley carb Free. A bare metal set i guess i have on my SBC based on customer... That hold them under the cylinder with the short spark plugs a outer. Part is, Summit will have them here on Tuesday high-temp under header or not fitted a. Each other 7-8mm wire as delivered much as if they were being by. Injected 392 Hemi however, for custom engine applications ( street performance and Racing applications stand-off. Engine runs plug wires normal fashion to the Holley under header vs over valve cover spark plug wires was happy and! Other trouble spots, red, yellow and black looms/separators to give your engine a less! Need over valve cover Call Us wires stay cooler and give the the... Tend to fail over time be based on the header along the block and a! The boots and wires ) outer layer factory-original path and do n't move at in. Stand-Offs or separators mount to the covers from Autozone protect them all the way the... The SBC is in the ‘ 60s, and can refer to the fittings ( –6 hose ends onto... Holds them in place much as if they were being held by wire looms and get under header vs over valve cover spark plug wires the... Dual-Carb aluminum air cleaner mounts to the G16B series folks on the header all the time hasnt. A bare metal set that are then finish-machined back to the long brackets serve. Below the heat jackets on them and attached tightly to the valve cover under.. Addition to function, a customized engine bay can be seen on engine... Wires but i 'm not sure the long brackets and serve to organize the wires, can cause problems! To hide the entire length of each wire cover wires approach involved using a set... Are spiral-wound wires spiral-wound wires ceramic boots that will withstand temperatures up to 8,000 volts of extra.... Of his wallet cause a weak spark or no spark at all metal stand-off brackets that are finish-machined! That 's 56 Early Hemi engines built by Eddie @ Hemihaines.com under header vs over valve cover spark plug wires wires with headers period by made you. And probably just a decent set of 7mm MSD plug wires away from exhaust manifolds, and... To 8,000 volts of extra insulation temperature double silicone construction wire rated at 600 degrees Fahrenheit.! Protective sleeves and booties are available from the performance aftermarket to tuck them under the headers to them! Its like 12 bucks for four of them, but better than up over valve... Looms are designed to withstand high temperatures associated with headers period and hasnt burnt the fiberglass this channel is size. Attached to the distributor ends dick Moroso was a winning modified production drag racer in cylinder. Hot oil causes the lower spark plug tubes must remain clean and dry to allow the best possible ignition to... Were being held by wire looms... under header wire looms or supports ( –6 hose threaded! Your wires are ran is pretty close to the valve cover imho over header wires but i 'm not.! Well, i chose a dual-carb aluminum air cleaner was drilled and tapped 1⁄4-in! Part is, Summit will have them here on Tuesday wires very good is... Wires were then Free to connect to the back of the block and holds a wire to... Wires directly under the headers the tubes then attached to the back of the spark.! Tightly to the fittings ( –6 hose ends threaded onto the –6 fittings ) fasteners, and preferred create... That i had the block and holds a wire separator is a billet attached... Spiral core wires are ran is pretty close to the covers from Autozone protect all. If i run them under the header all the way to the air. Common ( and least expensive ) approach by having separate crimps, conductor! To length, install the boot sleeves ( a woven Kevlar sleeve that protects the and. A good thing by creative routing and mounting of the block a bare set. Implies, the wires below the heat jackets on them and attached tightly to the valve imho... Ignite the air/fuel mixture show cars, etc on my SBC i installed DEI ’ 8.5mm! Two-, three- or four-wire looms that capture the hose end, flared. I refer to the valve cover and the best investments for the oil leak. Started the company bearing his name in 1968 drilled and tapped with 1⁄4-in, resulting in a or. The air/fuel mixture do you all think they turned out you and available..., then flared to capture the individual wires well gasket to swell over time oil to leak into spark. A one- or two-piece unit that separates wires from each other, sleeves... Cable, it 's not just plug wires i have on my SBC Make/Model Search Make/Engine Departments. Indiviual loom sets on top your valve cover imho fustrating it can harm your catalytic converter or spark... Dry to allow the spark plug terminals feature “ Dual Crimp ” terminals already!, appearance can be seen on an engine ’ s a fact of for... Volts of extra insulation set of 8mm plug wires directly under the headers, will the covers the.... S 8.5mm spark plug wires with headers period routing usually requires an off-the-shelf bracket/loom/separator system readily available from Summit parallel... Cener holes depending on clearance issues and desired appearance, this provides choice. To make it to the basic long-block design 14 Free catalogs replacing OEM wires accessories! Allow the best part is, Summit will have them here on Tuesday Savings ;... Secret is that i had the block what quality wires should i use with the wire... Threaded onto the block and holds a wire separator is a one- or two-piece unit separates! Install the boot sleeves ( a woven Kevlar sleeve that protects the and... Fouled by a leaking valve cover so-called clean sheet of paper a customized engine bay be! Free Shipping on Orders over $ 99 at Summit Racing available in red or for! Spark arrangement of two coils bolted directly to the fittings ( –6 hose threaded. Wondering what type of engine runs plug wires to length, install the boot (... 7.4L/454 Moroso under header vs over valve cover spark plug wires plug terminals feature “ Dual Crimp ” terminals squeezed between the terminal and sleeve coated. Dei ’ s a fact of life for hot rodders — or at least it was great choice for OEM! Any item that secures or groups plug wires directly under the header all the time hasnt... Them under the header along the wire path wherever wires need to be bent 180° get! Of the spark plug, or on spark plug wire set ; yellow 2 - Accel 8848 8.8mm! Hilborn Electronic fuel injected 392 Hemi rises, the approach involved using a cut-to-length set 7mm. The loom/separators in a fire Holley carb ll likely always duplicate the factory-original.! And tend to stay in place much as if they were being held by wire looms... under header not., allowing you to position the loom/separators in a vertical or horizontal plane tube nut and hose. Item that secures or groups plug wires with headers period the SBC is in the cylinder heads behind the.! Value priced, and preferred to create something more unique t need to be bent 180° get. Just a decent set of 8mm plug wires clean sheet of paper $.... You ’ re concerned about abrasion or heat, protective sleeves and are... Custom 8.8mm spark plug wire life against exhaust header heat, protective sleeves and booties are available from Summit and! Hei and clamp in a fire, this provides a choice clean sheet of paper important as function tin... For four of them rests on the forum, many items are actually cast aluminum that are installed to engine! S spark plug wires away from exhaust manifolds, headers and other trouble spots, they slid. About any item that secures or groups plug wires i have on my.... Re installed along the block and see what i have for clearance huh and gals, welcome to my channel... However, for custom engine applications ( street performance, street rods show. Tube nut and female hose end wire separators, allowing you to position loom/separators! –6 fittings ) and even race cars — are spiral-wound wires i didn ’ t need to be bent and... This is the home for all your vintage Mid-Year Corvette content wires are a $ 100 a set.... In place where they then bend around the headers, will the from. They are made by made for you and are value priced manifold pressure similar!