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AFR's 335cc BBC Enforcer cylinder heads feature their Permanent Mold "As-Cast" Technology surfaces on the intake runners, exhaust runners, and combustion chambers that allow for extremely accurate and repeatable port location/performance. These budget-friendly heads are perfect for your 509 to 540 cu.in. operating below 6,500 rpm. They come fully assembled with the identical components found in AFR's higher end CNC-ported cylinder heads—such as ARP rockers studs, PAC Racing springs, Viton® valve seals, AFR adjustable guide plates, machined bead valve locks (not stamped), hardened spring seats, and AFR's one-piece 8mm 21 4N stainless steel valves. Order the cylinder heads recommended for your year/make and engine application.
( 5 )
$1,023.75
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Scat forged standard weight crankshafts are designed for street or race engines with substantially increased horsepower. These crankshafts are precision-ground, heat-treated, shot-peened, inspected, and micro-polished for superior tolerance control. Scat crankshafts are also nitride-hardened for superior wear resistance, have straight-shot and chamfered oil holes, and feature lightening holes in all rod throws. They also have a large radius on all journals for improved strength and wear resistance. Scat forged standard weight crankshafts are available in dozens of sizes and configurations for fitment on vehicles spanning seven decades.
( 25 )
$1,012.99
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$1,432.99
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Scat introduces 4340 forged crankshafts for your Chevy the F43 series. These super-lightweight crankshafts are nitride-hardened for superior wear resistance. Features include: * Straight shot and chamfered oil holes * Profiled counterweights * Pendulum-cut counterweights * Gun-drilled main line hole for lightening and equalization of crankcase pressure * Four lightening holes
( 2 )
$1,110.99
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$1,406.99
Summit Bucks
Using only state-of-the-art equipment and advanced techniques, Scat is able to offer the automotive aftermarket World Class, race proven forged and billet crankshafts including the Pro Series big block post crankshafts. These Scat crankshafts are machined in-house using premium non-twist single plane 4340 forgings. Each Pro Series big block post crankshaft is skillfully machined, precision finished, ion-nitrided and also heat-treated for superior quality, extreme strength, and durability, and fully customized to your needs. Order the crankshaft designed for your application needs. Product features and details: * Manufactured from non-twist single plane 4340 forgings * Precision ground, heat-treated and Nitrided for superior wear-resistance * Straight shot and chamfered oil holes * Large radius on all journals * Lightening holes in all rod journals * Aero Wing counterweights * All popular engines, strokes, and rod sizes
Not Yet Reviewed
$1,034.99
Summit Bucks
Scat forged counterweighted crankshafts are made from high-tensile 4340 chromoly steel, with fully machined exterior profiles. All four counterweights are machined to exact symmetrical position and mass. The cranks are electronically balanced to within 2 grams, ground to exacting tolerances, and micro-polished for maximum bearing life. These replacement crankshafts are designed for 1908-27 Ford Model T applications.
( 2 )
$1,188.99
Summit Bucks
RaceTec's AutoTec line of forged pistons offers high-quality, precision manufactured options at competitive pricing. The primary material used for AutoTec pistons is 4032 high-silicone aluminum alloy which is extremely durable, has great wear resistance, a low expansion rate, and is very low in friction. The most common applications for AutoTec pistons include muscle car restorations, performance street rods, as well as many spec racing classes. They can also withstand mild nitrous kits, small turbos, or superchargers. A large selection of sizes and styles is available. Choose the proper fit for your application build. Additional features for most pistons in the AutoTec line: * CNC Precision machined ring grooves * Top ring land gas distribution groove to enhance performance and improve ring seal * Wrist pins, pin fitting, wire locks, broached pin oilers, and accumulator groove are included * Diamond turned skirts
( 1 )
$1,082.00
Summit Bucks
RaceTec pistons are the highest quality, precision manufactured options available made from forged or billet 2618 aluminum alloy. Utilizing the latest in CAD software and modern CNC machining centers, it is extremely durable and perfect for your high-horsepower application. RaceTec's in-house design and dyno-proven forgings ensure the strongest and lightest piston for your requirements. They offer a long list of sizes and styles. Choose the proper fit for your build. Features for most RaceTec pistons: * CNC Precision used in every manufacturing operation * Valve pockets machined for oversized valves and high lift cams * Critically machined ring grooves * Top ring land gas distribution grooves to enhance performance and improve ring seal * Wrist pins, pin fit, wire locks, broached double pin oilers, and accumulator groove are included * Diamond tooling used throughout production, including ring grooves and skirts
Not Yet Reviewed
$1,053.00
Summit Bucks
S&S Cycle 98 in. big bore kits are a fantastic upgrade if your Harley® is just a bit tired. The thicker and beefier cylinders mean that the engine will run cooler and you'll love the forged pistons that come with the kits. These are the largest bores that can be fit in your stock engine case. The cylinder and piston kits make going to the max bore size easy. There is no machining required and stock engine height is maintained. These kits come with nearly everything needed to get the most out of the added cu. in. to your stock engine. You won't believe how much power these kits produce! Features and specifications: * Kit yields excellent results with stock cylinder heads * Easy installation—no need to bore or split existing cases, just swap the cylinders * Available in a choice of either black or silver powdercoat finish with polished fins * Increased fin area for better heat dissipation * Valve pocket recessed in S&S pistons are enlarged for oversize valves and higher lift cams
Not Yet Reviewed
$1,187.06
Summit Bucks
S&S Cycle Super Stock alternator-style crankcases are perfect for stock replacement and high performance applications. Available in stock and different bore sizes, some are machined for the installation of a crank position sensor, but all are compatible with stock flywheel assemblies, primary covers, gear covers, and are clearanced for 38 amp alternator stators. Certain options may include the required hardware, fittings, and bearings, and may be offered in different finishes. Select the S&S Super Stock alternator-style crankcase designed for your motorcycle's engine.
Not Yet Reviewed
$1,456.16
Summit Bucks
These Scat crankshafts are made from the same strong aircraft-quality forging as standard-weight cranks, but have pendulum-cut counterweights to reduce rotating mass and oil windage. Scat Superlight crankshafts are perfect for engines wanting quicker rpm. These crankshafts feature profiled pendulum aero-cut counterweights and have straight shot and chamfered oil holes. Scat crankshafts are nitride-hardened, with large radii on all journals for superior wear resistance, and use lightening holes in all rod throws. Scat cranks are CNC-machined for absolute tolerances and symmetry, offering ease of balance and a reduced rotating weight.
( 1 )
$1,286.99
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