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Summit Racing™ HDR Thickwall Chromoly Pushrods
Summit Racing™ HDR premium thick-wall pushrods are a great upgrade for your engine. Factory pushrods (and even .080 wall aftermarket versions) act like a pogo stick in a running engine. Not only is static spring pressure working against them, it's also the valvetrain inertial mass increasing with RPM. This reduces power and valvetrain life. While a .080 thin-wall pushrod may not break, it doesn't mean it's the best option. Enter the HDR's. Summit™ used FEA (Finite Element Analysis) in the initial testing. We didn't just compare them to thin-wall welded-ball factory pushrods, but with aftermarket models, as well. The results speak for themselves! * The Summit™ HDR 5/16 x .105 wall pushrods have 20 percent less stress and 25 percent less deflection than a typical 5/16 x .080 chromoly pushrod * The Summit™ HDR Pro LS 11/32 x .120 wall have 25 percent less stress and 28 percent less deflection than a typical 5/16 x .080 wall chromoly pushrod * The Summit™ HDR 3/8 x .135 pushrods commonly used in big blocks has 15 percent less stress and 20 percent less deflection than a typical 3/8 x .080 wall chromoly pushrod Summit Racing™ added other high-end features like 210 degree ball ends to cope with extreme lobe lift and clear the rocker and are available in multiple lengths. * HDR 5/16 pushrods are offered in common LS, SBC, and SBF lengths * HDR Pro LS 11/32 pushrods add .030 diameter AND .120 wall thickness over a 5/16. Although most LS engines came with 5/16 pushrods, 11/32 pushrods fit any stock or aftermarket cylinder head. The added thickness adds much needed strength to any LS cam swap or engine build. Being available in .025 in. increments allows for fine tuning of hydraulic lifter preload with the LS's non-adjustable rockers. * HDR 3/8 pushrods fit the LS7 and common BB Chevy combinations. They have .135 wall thickness for maximum strength. Pushrods are some of the best horsepower-per-dollar components in your engine, so step up to the HDR's for your build!
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$89.99
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$178.99
Summit Racing™ All New 300 HP Small Block Chevy 350 Crate Engines
These Summit Racing™ 350 small block Chevys are 100% new, including their blocks! No remanufactured parts are used to build these engines. They are built with new Vortec head castings that are not prone to cracking like the factory ones, and produce a reliable 300+ horsepower/375+ lbs.-ft. torque, providing a mild muscle car tone. These engines are assembled for us by the guys at ATK, and backed with their 2-year unlimited mile warranty for peace of mind.
Not Yet Reviewed
$4,499.99
On Sale
Summit Racing™ Cast Iron Cylinder Heads for Small Chevy
Think you have to scour the local bone yards to find a decent set of GM's old double hump or fuelie cylinder head castings? Not true. In fact, we've brought back classic Chevy performance in a big way with these ready-to-run heads for small block Chevy. Our versions of the popular GM cylinder heads offer great performance for less than it would cost to rebuild an old set of double hump castings.
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$649.99
$499.99
Summit Racing™ Top End Engine Kits for Small Chevy
Summit Racing™ top end engine kits feature a pair of fully assembled Summit Street & Strip® aluminum cylinder heads matched up with a Summit Street & Strip® aluminum intake manifold, and a Summit Racing™ hydraulic cam and lifter kit. You also get a Summit Racing™ timing chain set and cam locking plate, a complete set of Trick Flow® gaskets, a Trick Flow® pushrod checker, and hardware from Summit Racing™ and GM Performance.
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$2,236.89
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$3,221.88
Summit Racing™ Cam Bearing Sets
Summit Racing™ offers cam bearing sets for a wide range of applications—including many Chevrolet small block V8 engines from 1955 and up. These bearings support the camshaft and allow it to rotate so it will activate pushrods and rocker arms to open and close valves. The direct replacements are available in a variety of materials. Order the set recommended for your vehicle.
Not Yet Reviewed
$26.99
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$45.99
Summit Racing™ Performance LS7 Hydraulic Lifters
Summit Racing™ Performance LS7 hydraulic roller lifters are a definite upgrade over stock originals. Designed for high horsepower engines that demand increased oiling and higher-rpm capabilities, these replacement lifters will fit in SBC roller engines, as well as LS-based engines without active fuel management (AFM/DOD). Beat the competition to the finish line with Summit Racing™ Performance LS7 hydraulic lifters!
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$287.99
Summit Racing™ 64cc Aluminum Cylinder Heads for Small Chevy
Don't sacrifice quality for a low price--get both with our Summit Racing™ 64cc aluminum cylinder heads for small Chevy. The lightweight heads are cast from A-356 aluminum alloy and have 200cc intake ports, 64cc combustion chambers, phosphorous bronze valve guides, and ductile iron valve seats for use with unleaded gas. They're also end-milled and drilled for accessories. The fully assembled heads have 2.02 in. intake and 1.60 in. stainless steel exhaust valves, valve springs, 7 degree valve locks, 3/8 in. rocker arm studs, and 5/16 in. guideplates.
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$1,329.99
On Sale
Summit Racing™ Vortec Cast Iron Cylinder Heads
Deliver power-building airflow to your engine with Summit Racing™ Vortec cast iron cylinder heads. These heads outflow the early model small Chevy heads with wide-open intake runners, efficient combustion chambers, and a high-performance valve job. They are made from a strong cast iron alloy that makes them less brittle than comparable Vortec heads on the market. For performance and great value, select the Summit Racing™ Vortec cast iron cylinder heads preferred for your build.
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$649.99
$499.99
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$549.99
Summit Racing™ Precision Cast Cylinder Head
Summit Racing™ precision cast cylinder heads are made from tough A-356 aluminum alloy and feature Permanent Mold "As-Cast" technology. Port accuracy is unrivaled--meaning CNC porting is not required to provide superior flow. The result is CNC-ported performance at a fraction of the price! We start with precision CNC-finished faces and bolt holes for accuracy and fitment. American craftsmen expertly size and install the manganese bronze valve guides and interlocking ductile iron seats before finishing with a competition-grade valve job. From there, the decks are given a final pass for superior finish. They are finish-assembled in the USA with top-quality components like PAC Racing springs, fasteners, one-piece 21 4N stainless valves, machined locks, Viton® seals and chromoly steel retainers. The final result is the performance you want and Summit Racing™ quality you TRUST!
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$624.99
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$639.99
Summit Racing™ Top End Pro Packs
These Summit Racing™ top end Pro Packs are guaranteed to give your engine a shot in the arm. We have taken out the guesswork and matched up all of these components for maximum bolt-on power, right out of the box. Get one of these Summit Racing™ top end Pro Packs and put your motor on track for some serious horsepower. Features include: * Pair of cylinder heads that will outflow your stock heads * Head bolts * Intake manifold * Intake gaskets * Intake bolts
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$3,338.65
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$6,151.87
