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These Summit Racing™ Chevy 350 engine kit Pro Packs give you virtually everything you need to assemble your Chevy 350. Features include: * Your choice of forged, hypereutectic, cast, or no pistons * Your choice of Summit Racing™ Stage I, Stage II, or no connecting rods * Available with or without Summit Racing™ Engine Shop cast, 2-piece, rear main seal crankshaft * Sealed power piston rings in your choice of standard, .020, .030, .040, or .060 * Rod and main bearings available in your choice of standard, .010, .020, or .030 * Sealed Power cam bearings * High-volume oil pump assembly with stock pickup welded to the pump * Summit Racing™ True Roller timing chain * Sealants, assembly lube, Plastigage, rod bolt boots, and freeze plugs
( 1 )
$771.83
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$1,092.82
Don't look at it as taking it apart; look at it as a chance to build it better. Use a Federal Mogul lower engine kit to rebuild your engine better than new. All Federal Mogul lower engine kits feature Sealed Power and Fel-Pro components that provide innovative designs, use leading-edge materials, and utilize ISO and QS certified manufacturing in order to deliver top-quality products that meet the rigorous demands of today's modern engines. The kits include piston rings, gaskets, and pistons, plus rod, main, and cam bearings; all parts meet or exceed OEM specifications. When you take the time to disassemble your engine, don't waste the opportunity to make improvements with Federal Mogul lower engine kits.
Not Yet Reviewed
$908.94
Doing a rebuild? Let us help. Summit Racing™ engine rebuild kits are comprised of quality components to produce winning results for your build. From the hypereutectic pistons and plasmamoly rings … to the bearings, gaskets, and freeze plugs, you'll have the essentials needed in one convenient package. We offer kits for engines from the 1990s and up; order the package recommended for your application.
( 1 )
$759.94
These Summit/Federal Mogul Premium engine rebuild kits will make your performance rebuild easy and inexpensive. Everything you need is in one affordable package. They're available with or without pistons (cast, hypereutectic, or forged, depending on the application), chromoly faced compression rings, and exclusive SS-50 oil control rings, as well as main, cam, and rod bearings. Various oil pump configurations are available, depending on the applications, along with top-quality gaskets and freeze plugs.
( 5 )
$800.87
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$856.84
These Federal Mogul piston and premium ring kits will increase power by decreasing blowby. They include a set of either cast aluminum or hypereutectic pistons and a set of premium-material piston rings with your choice of moly or chrome ring facings. These Federal Mogul piston and premium ring kits are available for a variety of engines and are offered in several oversizes in case your engine block has been bored.
Not Yet Reviewed
$869.94
On Sale
Now available from Holley are LS engine swap accessory drive systems. Included are accessories and pulleys that are manufactured by OEM part suppliers for durability and direct bolt-on installation. Order the kit that's best suited for your vehicle and engine application. Features and facts: * Universal brackets fit virtually all common LS engines, regardless of water pump and harmonic balancer offsets--thus reducing cost and complexity compared with competitive products * Simple, dedicated installation kits allow easy fitment to Corvette, F-Body, or truck drive offsets * Accessories, tensioner, and pulleys are manufactured by OEM suppliers and many of the parts are used on production vehicles today
( 34 )
$949.95
$763.95
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$1,049.95
Welcome to a new class of high performance cylinder heads--BluePrint Muscle Series! These aluminum heads are assembled with the perfect match of components for outstanding, trouble-free performance. Plus, they give you more power behind the wheel and in your wallet! These all-cast heads are designed for hydraulic flat tappet and hydraulic roller cam engines with hefty intake runners, stainless steel valves, Viton® seals, and dual springs. BluePrint Engines stand in front of the class, offering both performance and cost-conscious enthusiasts a powerful alternative--Muscle Series cylinder heads.
( 86 )
$949.00
Lingenfelter Performance Engineering LSX valve springs are premium single beehive-style valve springs. They are offered in sets of 16 and can be used with stock LS valve spring retainers.
Not Yet Reviewed
$807.45
Enhance your supercharged engine with Lingenfelter Performance Engineering harmonic balancer kits. Better than factory, LPE's balancer kits produce great horsepower and torque improvements, while maintaining safe levels of boost. These kits will increase boost by raising the rpm of your supercharger by overdriving it from the harmonic balancer. Make your modern musclecar even better with harmonic balancer kits from Lingenfelter--perfecting the art of performance for you!
Not Yet Reviewed
$859.99
These Chevrolet Performance High Output crate engine cast iron cylinder heads are designed for use with the Gen V and Gen VI design, 454 big block V8 crate engines. They feature a 118cc open combustion chamber with 2.18 in. intake valves and 1.88 in. exhaust valves with rectangular intake ports. The cylinder heads use 3/8 in. rocker arm holes for standard stud-mount type rocker arms.
Not Yet Reviewed
$1,047.74
Summit Bucks
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 )
$797.99
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$1,050.99
Summit Bucks
Are you building big power? Help pull the power within your engine out with Scat Ultra Q-Lite connecting rods. These rods are light, strong, and delivered ready to install. Crafted from high-tensile 4340 forged steel, Ultra Q-Lites use special 1.4 in. ARP 7/16 in. bolts to ensure clearance--no machining or indexing is required! These connecting rods are built with doweled caps for precision alignment and are also available with a profiled clearance for stroker applications. A Formula 1 style lightening hole reduces weight even more without compromising strength. You're not settling for the original horsepower in your engine, so don't settle for just any connecting rod; choose high-quality craftsmanship--Scat Ultra Q-Lite connecting rods.
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$783.99
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$883.99
Summit Bucks
These H-beam connecting rods are the strongest Scat connecting rods available. These Scat H-beam connecting rods are perfect for supercharged and nitrous applications. These rods incorporate a special doweled cap for specific cap-to-rod alignment and are profiled with extra clearance for stroker applications.
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$759.99
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$944.99
Outfit your top end with a set of these assembled ATK High Performance aluminum cylinder heads for small block Chevrolet. They're cast, machined, and assembled with A356 aluminum alloy. The heads feature the latest port designs for maximum efficiency and increased power, and improved stock exhaust port location for better header fitment. ATK High Performance aluminum cylinder heads for small block Chevrolet include: * 2.020 in. stainless steel, swirl polished with undercut stem intake valves * 1.600 in. stainless steel, swirl polished with undercut stem exhaust valves * Manganese bronze valve guides * Alloy valve seats * 1.437 in. diameter valve springs (.600 in. max valve lift) * Chromoly 7-degree valve spring retainers * Single groove 7-degree valve locks * Valve spring locators * 5/16 in. flat pushrod guideplates * 3/8-24 in. rocker arm studs
Not Yet Reviewed
$798.99
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
ATK offers select parts for your build, including cylinder heads. They use them in their engine combinations and are available to complete your big block Chevy engine or upgrade existing components. ATK High Performance 315cc BBC cylinder head features: * A356 aluminum construction * Stainless steel intake and exhaust valves * Manganese Bronze valve guides * Viton® valve seal * Powder meatal valve seats * Steel retainers with 10-degree locks * Spark plug dimensions: 14mm x .708 in. with gasket seat
Not Yet Reviewed
$1,048.99
ATK High Performance 250cc LS1/LS6 aluminum assembled engine cylinder heads are complete new builds. They include valves, valve springs, valve spring retainers, valve stem seals, and soft plugs. All threads are checked and repaired, if necessary; and all passages and part interfaces are pressure checked. Product specifications: * Material: A356 aluminum * Bolt count: 6-bolt head * Intake port volume: 250cc * Intake port dimension: 3.227 in. H x 1.119 in. W * Intake port location: Stock cathedral port * Intake valve size: 2.080 in. * Intake valve material: Stainless steel * Exhaust port volume: 105cc * Exhaust port dimension: 1.628 in. H x 1.722 in. W * Exhaust port location: .086 in. raised * Exhaust valve size: 1.60 in. * Exhaust valve material: Stainless steel * Combustion chamber size: 61cc * Valve cover bolt pattern: Perimeter bolt * Valve angle: 11 degree * Valve spring pocket diameter: 1.610 in. O.D. * Valve spring pac: 1905 dual spring (hydraulic roller) * Valve spring setup height: 1.800 in. * Valve spring closed pressure: 160 lbs. (with retainer) * Valve spring open pressure: 1.200 in., .600 in. lift, 425 lbs. / 1.150 in., .650 in., lift 445 lbs. (with retainer) * Valve spring max lift: .650 in. * Valve guide material: Manganese bronze * Valve seal material: Viton© * Valve seat material: Powder metal * Retainer material: Titanium * Deck thickness: .750 in. * Minimum bore diameter: 3.900 in. (will not fit stock bore 4.8L/5.3L) * Flat mill: .006 in. per cc * Spark plug dimensions: 14mm x .708 in. with tapered seat * Torque specifications per application based on factory or aftermarket bolts/studs
Not Yet Reviewed
$998.99
Summit Bucks
Scat Excalibur crankshafts are precision-ground, heat-treated, and nitride-hardened for superior wear resistance. They are crafted from lightweight 4340 non-twist forgings. Features include: * Lightweight, weighing 48 to 50 lbs. depending on crank selected * Rough-balanced to 1,800 grams +/- 2 percent * Have bull nose counterweights for improved windage * Scoop main oil holes * Straight shot and chamfered oil holes * Lightening holes in all rod journals * Large radius on all journals * Available in a choice of rear main seal styles, stroke, and rod length
Not Yet Reviewed
$938.99
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$989.99
Summit Racing™ Pro LS forged steel crankshafts deliver industry-leading fit, finish, and durability at an affordable price. Order the model recommended for your year/make and engine application. Check out the long list of premium features: * 4340 forged steel * Tested to over 1,200 hp in boosted applications * Core hardened to optimum strength, then tempered to remove stresses * Nitride hardened, which results in less distortion, excellent case depth, and more fatigue life * Profiled counterweights reduce windage * Precision stroke and indexing * Lightening holes are drilled in the rod journals for quicker engine acceleration * Gun-drilled Main Journals for quicker engine acceleration * Each crank is magnetic particle tested to ensure it's free of flaws * Large radius fillets for increased strength, narrowed rod bearings for reduced friction * Straight shot oiling for maximum lubrication just prior to maximum load angle * Maximum journal tolerances of +/- .0001 in. ensure consistent bearing clearance * Micro-polished journals with chamfered oil holes for maximum durability and bearing life * Optimized counterweight placement for reduced twisting at high RPM and ease of balancing * High-quality reluctor rings are installed with precision fixturing * Extra 3/16 in. front keyway for blower cars
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$839.99
On Sale
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.
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$1,023.75
$921.38
All the quality, reliability, and workmanship you have relied upon for years from the Compstar lineup is taken to the Xtreme--Callies Compstar Xtreme connecting rods. Specifically designed for power adder and diesel applications, these rods utilize the same proven 4340 material and ARP 2000 or L19 fasteners. Strength was added by thickening up the flanges of the H-beam and a reduced depth-of-cut towards the center of each rod, then non-essential weight is taken out of the beam to help keep the overall weight of these Xtreme rods in check. Choose a set for your high output, boosted application.
Not Yet Reviewed
$928.00
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$1,008.00
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!
( 14 )
$899.99
Cam Motion lifters are available to fit your desired level of performance and budget. From economical stock replacements to their High Performance, Racing, and Premium lines of lifters, Cam Motion covers many applications. Their Premium hydraulic roller lifters feature cold-forged steel construction, precision-ground needle roller bearings and extra-long pistons, precision oil metering, and high-flow, quick-reacting check valves. Cam Motion lifters are available in factory tray/retainer-styles and tie bar-styles.
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$766.32
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$848.68
No longer will fans of the small block Chevy have to choose between vintage looks or modern cylinder head power—Trick Flow® DHC™ 175 cylinder heads give you both! Made from premium grade, lightweight A356-T61 aluminum, DHC™ 175 heads feature the exterior styling and straight spark plug holes that deliver the nostalgic appearance of the original factory performance 186, 291,461,462 "double hump" or "camel back" castings that customers want. To keep with the vintage design, the heads are available with 69' later or without 68' earlier accessory bolt holes cast into them. 60cc CNC-profiled combustion chambers combined with a state of the art valve job and CNC blended bowl work under the valves and small cross-section intake runners promote low-rpm torque increases and boost high-rpm horsepower. The runners are finished with Trick Flow's® superior Fast As Cast® process that precisely duplicates the runner profile and performance levels of fully CNC-ported heads without the added machining cost. Ductile iron valve seats for use with unleaded fuel, stainless steel valves, bronze alloy valve guides, multi-angle valve seat machining, and decks and walls cast extra thick for increased casting strength and to provide extra room for porting round out the features. Trick Flow® DHC™ 175 cylinder heads are available fully assembled or as bare castings. Sold individually.
( 21 )
$849.99
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$874.99
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