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When upgrading your LS-powered vehicle, don't forget to replace the factory steam tubes. Our Summit Racing™ Pro LS steam line plumbing kits eradicate trapped air and steam pockets from your engine to prevent hot spotting and overheating as well as provide more flexibility when using aftermarket intakes. Kits vent all 4-corners (except SUM-220952 and SUM-220952B kits) and contain black anodized billet aluminum fittings, steam port adapter, O-rings, stainless steel bolts, -3AN or -4AN hose and hose ends, (stainless steel hard lines and 5-port distribution block on SUM-220959 kit only) to make installation easy and more attractive than OEM lines, offering a cleaner look and better waterflow.
( 17 )
$74.99
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$169.99
Your modified LS-powered cars and trucks will be easier to service with an upgrade to a race car plumbing system. These plumbing kits contain black anodized billet aluminum fittings, O-rings, stainless steel bolts, and all of the necessary hose to plumb just the front of the heads or all four corners. Choose the most desirable upgrade to your factory steam tubes--Trick Flow® engine steam line plumbing kits for GM LS.
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$101.99
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$148.95
Chevrolet Performance engine coolant crossover pipes are designed to vent the coolant to ensure that the coolant reaches the highest point on the cylinder heads and doesn't get blocked by an air pocket. They are manufactured from quality materials and install in the stock location for a direct fit.
( 6 )
$59.99
Summit Racing™ induction kit Pro Packs start with the Edelbrock EPS Performer intake manifold, which builds horsepower and torque from idle to 5,500 rpm. Summit Racing™ induction kits also include an Edelbrock 600 cfm Performer carburetor and a 14 in. chrome steel Summit Racing™ air cleaner, plus zinc plated Summit Racing™ carb studs, a Summit Racing™ stainless steel intake bolt kit, and a Fel-Pro Printoseal intake manifold gasket set. These kits are compatible with both the 260 hp and 290 hp versions of this engine and are designed for smooth street performance.
( 23 )
$774.86
On Sale
Holley LS steam vent kits prevent hot spots or overheating. Designed to eliminate trapped air and steam from your engine, these complete kits are available to plumb your engine and include the appropriate hose and hose ends to make installation a breeze. They are more attractive than the OEM lines and offer increased flexibility when using aftermarket intakes and other accessories on your performance vehicle. Holley LS steam vent kits may feature: * Adjustable pivoting steam vent adapters * Black push-on or stainless braided Speed-Flex hose and hose ends * Available in front or 4-corner plumbing options
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$170.95
$62.45
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$153.85
Earl's Performance LS steam vent kits eliminate trapped air and steam from your engine to prevent hot spots and overheating. They offer a selection of these LS power plumbing kits, with the appropriate braided stainless steel Speed Flex hose with hose ends that make installation easier and much more attractive than OEM hard lines. Plus, they provide more flexibility when you're using aftermarket intakes and other accessories on performance vehicles. The kits are available in front and 4-corner plumbing options, with adjustable anodized aluminum steam vent adapters and/or distribution blocks. Plumb your LS for performance with Earl's steam vent kits.
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$299.95
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$349.95
Upgrade your GM LS engine with a set of Mr. Gasket valley cover bolt sets. The stainless steel fasteners look great and come with small diameter stainless AN washers, ideal for replacing missing or worn OEM fasteners. They feature a small diameter button head, giving you the extra clearance you need.
( 3 )
$41.70
ARP's intake valley cover bolt kits are the perfect fit for your next build. They are precision-machined for optimum thread engagement and have a wide-area flange for better load distribution. They also feature precision-rolled threads, which prevent galling, while promoting more consistent torque loading. These bolts are available with either hex or 12-point heads and in either polished stainless or with a black oxide coating. Don't waste time trying to reuse old bolts--grab ARP intake valley cover bolt kits.
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$23.99
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$43.99
Solve those LS engine cooling issues with a Philadelphia Racing Products coolant crossover plumbing kit. Each kit comes with all of the necessary parts to complete a 4-corner water crossover on your LS engine, including -4 AN hose and aluminum fittings to fully plumb your project just the way you want it.
Not Yet Reviewed
$229.99
On Sale
Nitrous Outlet coolant crossovers stop hot cylinders and pre-detonation. First, the easily installed water vapor bleed kits help to distribute heat from cylinder to cylinder, decreasing temperature variation. Then the coolant crossover lines increase the flow through the engine block, reducing engine temperatures. Nitrous Outlet kits feature billet aluminum distribution blocks and stainless steel pre-bent hard lines or braided flex lines; they enable you to run these systems on your car all year long without the worry of a bursting hose, rust, or corrosion. The selection of coolant crossover kits comes complete with the necessary fittings and adapters to make the install hassle-free. Keep your block and cylinder cooler with Nitrous Outlet coolant crossovers.
Not Yet Reviewed
$286.99
$243.94
ICT Billet LS valley pan cover flange bolts are full sets of valley cover to engine block bolts for LS Series engines. These custom-made bolts are Grade 10.9 clear zinc coated steel with JIS-style heads. ICT M8s have a torque specification of 18 lbs.-ft. Finish off your LS valley pan cover installation with flange bolts from ICT Billet.
Not Yet Reviewed
$25.99
On Sale
Nitrous Outlet 860 Performance Hard-Lined LSX Steam Vent Kit utilizes the front and rear steam ports on the passenger and driver side head, allowing water flow through the ports and back to the radiator. This design prevents built up steam pressure which is known to create a rise in cylinder temperatures on number 7 & number 8 cylinders, causing pre-detonation.
Not Yet Reviewed
$255.99
$217.59
BluePrint Engines dual plane Vortec intake manifolds are perfect to top any SBC ranging from 350 to 400 c.i.d. These cast aluminum performance replacements are pressure-tested for leaks—and are capable of supporting over 500 hp. They're a great match for BluePrint H8002K and HP8103 headed engines, or iron Vortec headed engines. Gaskets and hardware are included. Additional details (P/N MLL-BPP350VINT): * Engine block style: SBC Stock/OEM standard deck * Cylinder head style: Vortec * Carburetor mounting: 4-barrel square bore * Intake style: Dual plane * Basic operating RPM range: Idle - 6,200 * Intake manifold height: 4.595 in. * Intake finish: Natural * Intake material: Aluminum * Features two 1/2 in. NPT plugs on top of the front water crossover, and one 3/8 in. NPT plug facing forward, perpendicular to the thermostat. * The rear most 1/2 in. NPT pipe plug on the rear intake runner is for brake booster. This is NOT a water port. * NOTES: This intake manifold features the Vortec (vertical intake bolt) Pattern. This is the production intake manifold used on BluePrint SBC engines 400 c.i.d. and smaller. May not be compatible with OEM chokes or OEM accessory mounting brackets.
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$215.95
Summit Racing™ induction kit Pro Packs have an Edelbrock Performer RPM intake manifold designed to produce an excellent balance of broad torque, upper-rpm horsepower, and throttle response for the street, with a maximum performance of 1,500-6,500 rpm. To top them off, we've added an Edelbrock Performer 600 cfm carburetor, a 14 in. chrome steel Summit Racing™ air cleaner, zinc plated Summit Racing™ carb studs, a set of ARP black-oxide coated chromoly intake manifold bolts, and a Fel-Pro Printoseal intake manifold gasket set.
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$945.86
BluePrint / Holley Sniper EFI fabricated intake manifolds continue to push the aftermarket with low-profile intakes for the popular GM LS engine family. They're good looking, perform well, and offer great value for a performance sheet metal style intake manifold. Each unit is ready to bolt on out of the box, is designed to accept Sniper high-flow throttle bodies, and includes a high-flow fuel rail kit. This updated design was developed to allow the end user to fit under a stock hood. Each manifold is precision fixtured, welded for a perfect fit and maximum structural integrity. Your choice of throttle body opening sizes of 92mm and 102mm are available. Additional details: * Low-profile design (overall 1.875 in. shorter) allows fitment under stock hoods on Corvette, Camaro, Firebird, GTO, and others where hood clearance is at a minimum * Shortened runners allow for compact design. Overall plenum volume maintained by increasing the overall width of the plenum and increasing the overall dimensions of the runner * 3mm (1/8 in.) thick T6061 sheet aluminum construction, strong and durable even under high horsepower and boosted conditions * 100 percent TIG-welded * Intakes include 3/8 in. fuel rail kits with -8 AN fittings and crossover braided line capable of supporting 750+ horsepower (laser-engraved Sniper logo) * Runner lengths with tapered top on EFI intakes designed to increase velocity and more evenly distribute airflow to all 8 cylinders
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$449.95
Summit Racing™ offers engine steam line fittings for GM LS applications from 1997 and up. They're designed to upgrade the factory steam tubes of your modified LS-powered cars and trucks—updating your race car plumbing system. The fittings are black anodized billet aluminum and attach to the corners of your GM LS cylinder heads. They feature -4 AN male threads and include O-rings and stainless steel bolts. Order the style best suited for your vehicle.
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$12.99
Moroso engine storage plates offer a convenient way to keep your GM LS engine's lifter valley area sealed off from foreign objects during storage. The plates are constructed from 1/8 in. thick steel, and then zinc coated for corrosion resistance. Moroso includes mounting hardware to secure the plates. Order the model designed for your specific engine application.
Not Yet Reviewed
$45.99
On Sale
Summit Racing™ induction kit Pro Packs have a GM Performance Parts intake manifold designed to produce an excellent balance of broad torque, upper-rpm horsepower, and throttle response for the street. To top them off, we've added a Holley Street Avenger 770 cfm carburetor, a 14 in. chrome steel Summit Racing™ air cleaner, zinc plated Summit Racing™ carb studs, a set of ARP black-oxide coated chromoly intake manifold bolts, and a Fel-Pro Printoseal intake manifold gasket set.
Not Yet Reviewed
$1,328.36
$1,257.36
On Sale
Developed with performance in mind, Holley EFI LS single plane split-design race intake manifolds feature a race bred, 2-piece split design that was previously found only on the most expensive race intakes. These manifolds will fit GM LS Gen III engines with cathedral port heads for high performance/racing engine applications with 5.3 to 6.2 liter displacement and maximum engine speeds of 6,000 to 7,000 rpm, depending on the engine combination. The single-plane design provides optimal performance across the rpm spectrum, while the split feature, which allows disassembly of the intake for direct access to internal plenum and port surfaces, makes custom porting and matching a snap. Shoulder bolt locators and an O-ring seal makes reassembly simple and precise.
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$821.95
$628.95
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$738.95
On Sale
Edelbrock Performer RPM intake manifolds have a high-rise, dual-plane design. They produce incredible top-end horsepower, while retaining good throttle response. Performer RPMs have larger plenums and runners to match the free-flowing exhaust, high-lift cams, and other modifications of a high-output engine. They're intended for high performance street or competition engines that run from 1,500 to 6,500 rpm.
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$571.95
$296.95
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$1,070.95
Seal up your engine while looking good with one of these ICT Billet LS lifter valley covers. They are designed to fit (Non-DoD) engines and are milled from a solid block of aerospace-quality billet aluminum. The covers offer outstanding block rigidity, while the precision-machined underside provides an excellent seal using the existing factory O-ring. Their wide chamfered edges ensure adequate intake manifold runner clearance and they include the necessary flush mount, Allen head stainless steel mounting hardware.
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$49.99
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$99.99
Affix your intake manifold with ICT Billet bolt kits. These strong steel fasteners hold your manifold in place securely, so it may perform to your expectations. Secure your intake manifold for leak-free performance with a set of ICT Billet bolts.
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$25.99
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$29.99
Dress up your existing intake manifold or ease installation of a new manifold with Summit Racing™ intake manifold bolts. They're made from rugged steel and plated for corrosion resistance, perfect for your next project.
( 46 )
$14.99
Summit Bucks
Top Street Performance dual-plane intake manifolds are ideal for street performance applications. Their design improves throttle performance, as well as power and torque over a wide rpm range, from idle up to 6,000. The manifolds are cast from lightweight aluminum and feature a low profile for hood clearance. Order the intake recommended for your year/make and engine application. * Small block and big block Chevy models include dual distributor hold-downs, 4-corner water ports, and a choke block-off kit. Set up for spread bore cars, these manifolds come with an adapte3r plate and gasket for use with square bore types. * Small block Ford models include nitrous bosses, a rear water crossover with additional ports, and a square bore carburetor flange.
Not Yet Reviewed
$241.49
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$266.66
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