2020 Engine Blocks & Accessories Engines & Components - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Summit Racing™ LS Main Cap Bolt Kits

Rebuilding your GM LS engine? Replace those old main cap bolts with our Summit Racing™ LS main cap bolt kits for peace of mind. Our kit includes all 30 bolts to get the job done. They meet the same high-quality and specifications as your factory bolts.

4.63 out of 5 stars ( 16 )

$149.99

ARP Main Stud Kits

ARP main stud kits help eliminate main cap walk/fretting and protect the threads in your engine block. They include studs made from 8740 chromoly steel and heat-treated in-house to 190,000 psi tensile-strength rating. The precision J-form threads are rolled after heat-treat for much stronger threads than the competition. Kits come complete with hardened parallel-ground washers and high-quality nuts. Add confidence in the strength of your engine build with the ARP main stud kit designed for your application.

4.8 out of 5 stars ( 393 )

$134.99

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$222.99

ICT Billet Oil Cooler Block-Off Plates

ICT Billet oil cooler block-off plates are the perfect solution for removing the factory oil cooler from the side of the oil pan, giving you improved frame rail clearance. They allow you to retain the original pan without the need for the factory oil cooler, making them ideal for custom builds or tight engine bays. Made from high-quality, aerospace-grade billet aluminum for strength and longevity, the block-off plates are designed with integrated seals to provide a secure, leak-free fit without the hassle of additional sealants. The innovative two-piece design ensures oil continues to circulate properly, maintaining optimal engine performance. These block-off plates are easy to install and come with all the necessary components for installation, including the plate, seals, and hardware.

Not Yet Reviewed

$179.99

Mopar Replacement Crankshaft Rear Oil Seal Retainers

Mopar Replacement rear main seal housings are designed to hold the main oil seal on the rear of the crankshaft. They are manufactured from durable aluminum and are ideal for replacing damaged housings or building a new project from scratch.

5.0 out of 5 stars ( 1 )

$107.99

Improved Racing Oil Cooler Adapters

Improved Racing oil cooler adapters have a low-profile for more header clearance. The adapters are machined from a single piece of billet aluminum and black anodized. For additional clearance with reliable sealing, they come with aluminum gaskets fitted with Viton® seals, and the adapter mounting holes are counter-bored so the mounting bolts fit flush with the adapter surface. Select Improved Racing oil cooler adapters are also available with a built-in thermostat. Oil coolers help prevent the oil from getting too hot, but are also prone to lowering oil temperatures too much, especially in colder weather or during highway driving. The rebuildable thermostat speeds warm-up and helps reduce engine wear and horsepower losses by preventing oil temperatures from dropping below optimal levels. Features and benefits * 100 percent bolt-on solution; no fabrication, bending, or line modification is required * Viton® seals throughout for maximum reliability * Oil exiting the adapter is filtered oil * 6061 T-6 billet aluminum construction with black MIL-A-8625 Type II anodized finish * Standard female -8 AN O-ring boss threads for optional anodized adapter fittings in your choice of -8 AN, -10 AN, or -12AN lines * Depending on application, includes port(s) for oil sensors or turbo oil supply * Includes all necessary hardware * Limited lifetime warranty

4.2 out of 5 stars ( 10 )

$159.00

Go Fast Bits DV Plus Diverter Valves with TMS Advantage

Go Fast Bits offers DV Plus Diverter Valves with TMS (Turbo Management System) Advantage for a wide range of vehicles, particularly imports. GFB's DV+ solution couldn't be simpler—keep what works and replace what doesn't. GFB expands the DV+ range with a direct-fit solution for the weak factory diverter valve used on many European vehicles. The solenoid coil itself from the factory-fitted valve is great (the ECU opens it faster than any pneumatic valve so why replace it?)—but the weak point is the valve mechanism itself. So GFB's DV+ solves this problem by replacing just the valve parts with an anodized billet aluminum housing fitted with a brass piston machined to exacting tolerances. The end result is sharper throttle response, lightning-fast valve actuation, and it will hold as much boost as you can throw at it. Other manufacturers' products involve replacing the entire system with a traditional pneumatic valve, requiring long vacuum hose runs, additional parts for tapping into the intake manifold vacuum—plus either a different solenoid valve to actuate the pneumatic valve, or a ballast resistor to plug into the OE wiring loom. All these additional items result in a product that is slower, less responsive, more expensive and takes much longer to install. GFB's DV+ solution on the other hand is more responsive, less expensive, easier to install, and doesn't cause compressor surge/turbo flutter. Order the model recommended for your vehicle. Additional notes: * Retains the factory solenoid coil for seamless integration * Replaces plastic valve parts with metal for reliability and strength on chipped engines * Exclusive "pilot-actuated" valve mechanism for rapid response at high boost

5.0 out of 5 stars ( 6 )

$173.70

PRW Main Cap Stud Kits

PRW main cap stud kits help eliminate main cap walk and also protect the threads in your engine block. The main cap studs work with the main caps to help strengthen the foundation for your next high horsepower build. These main cap fasteners come complete with hardened parallel-ground washers and quality hex-style nuts. Add confidence in the strength of your engine build when you use these PRW main cap stud kits.

3.5 out of 5 stars ( 6 )

$174.95