Availability
Showing In Stock Items. Show All 178 Items.
If you're looking for more horsepower and torque for your engine, Chevrolet Performance Vortec top end kits may be just the ticket! These kits are available for a variety of engines, and each kit is comprised of all the pieces and part components you need to get the job done. Order the Chevrolet Performance Vortec top end kit recommended to fit your engine model.
Not Yet Reviewed
$1,582.88
Inspired by S&S Pro Stock drag race engines, S&S Cycle 4 in. Sidewinder big bore kits utilize a ductile cast iron liner wrapped in cast aluminum for optimum thermal conductivity and performance. These bolt-in kits do not require machining, re-balancing, or engine removal, and include just about everything you'll need to complete the installation. S&S Cycle 4 in. Sidewinder kits offer the biggest cylinder bore that can be installed in a stock crankcase without machining! Features: * Low-friction ductile cast iron liner * 10.5:1 compression * Bolts in with no machining, balancing, or splitting the crankcases * 88 in. engines are boosted to 100 in. * 96 in. and 103 in. engines are boosted to 110 in. * Complete kits include cylinders, pistons, gaskets, and instructions * Wrinkle black and silver cylinders that match stock finish
Not Yet Reviewed
$1,395.86
Inspired by S&S Pro Stock drag race engines, S&S Cycle 124 in. big bore kits utilize a ductile cast iron liner wrapped in cast aluminum for optimum thermal conductivity and performance. These bolt-in kits do not require machining, re-balancing or engine removal, and include just about everything you'll need to complete the installation. S&S Cycle 124 in. big bore kits are available in wrinkle black or wrinkle black with highlighted finned cylinders. Transform your stock engine into a 124 in. monster with the installation of a 124 in. big bore kit from S&S Cycle! S&S Cycle 124 in. big bore kit features: * Available for 107 M8 models * 107 to 124 in. big bore kit * Bolt-on kit * Includes gaskets and hardware required for installation * 4.250 in. bore * Forged Pistons * 11:1 compression ratio
Not Yet Reviewed
$1,405.76
Eliminate the wait with Cylinder Works standard bore cylinder kits. They arrive ready to install, eliminating the hassle of sending out your cylinder for re-plating or boring, and they're competitively priced compared to typical re-plating costs. These cylinders look virtually identical to your OEM parts. Cylinder Works standard bore cylinder kits come in model-specific kits, so choose the one that best fits your application. Features include: * Super-convenient--just purchase and install * Nickel silicon carbide plated for long life * Honed to exact size for easy piston installation * Complete with gaskets, cylinder, and piston kit * No machine work required
( 2 )
$1,036.11
—
$1,065.85
Eliminate the wait with Cylinder Works big bore cylinder kits. They arrive ready to install, eliminating the hassle of sending out your cylinder for re-plating or boring, and they're competitively priced compared to typical re-plating costs. These Cylinder Works cylinders look virtually identical to your OEM parts and are conveniently available in "stealthy" big bore sizes. Cylinder Works big bore cylinder kits come in a variety of sizes, so choose the one that best fits your application. Features include: * Super-convenient--just purchase and install * Nickel silicon carbide plated for long life * Honed to exact size for easy piston installation * Complete with gaskets, cylinder, and piston kit * No machine work required
Not Yet Reviewed
$1,201.71
S&S Cycle 107 in. big bore kits are easy to install and require no machining or re-balancing. These are the largest bores that can be fit in your stock engine case. This is the largest bore that can be fit in a stock engine case. Stock engine height is maintained so there are no manifold or frame fitment issues. Using an 11-fin design, the pre-finished cylinders closely resemble the OEM shape and are ready to install. Take your stock engine case as big as it'll go with S&S Cycle 107 in. big bore kits! Product features include: * CP pistons feature a 3cc pop-up dome for slightly higher compression * Cylinders feature an increased fin area for better heat dissipation * Centrifugal cast gray liner features 40,000 psi tensile strength for superior wear and performance
Not Yet Reviewed
$1,175.36
S&S Cycle 124 in. (standard compression) Hot Set-Up cylinder kits package pistons and cylinders for use as replacements or as the basis for a new engine build. The pistons are a flat dome design, and the cylinders are machined with the stock bolt pattern intended for use in stock crankcases. Select the appropriate kit for your Big Twin. S&S cylinder and piston kit contents and notes: * S&S 4 1/8 in. bore cylinders -- Durable wrinkle black powdercoat finish * Forged flat domed pistons, rings, wrist pins * Head and base gaskets * Designed for 4 5/8 in. flywheels, resulting in 124 in. displacement * Cylinders can be used with stock or S&S cylinder heads with stock bolt pattern
Not Yet Reviewed
$1,381.46
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
S&S Cycle's 96 in. big bore cylinder kits for a Harley-Davidson® motorcycle provides significant benefits by increasing the engine displacement, leading to noticeable power gains, particularly in the low and mid-range torque, resulting in better acceleration and improved overall performance, especially for riders looking for a more powerful ride without drastically altering the engine character. The larger cylinder bore displaces more air, allowing for more fuel to be burned, generating more power throughout the powerband, especially noticeable during acceleration. Big bore kits tend to focus on increasing low and mid-range torque, which is beneficial for everyday riding and pulling heavy loads. With a larger cylinder volume, the engine can react quicker to throttle inputs, leading to a more responsive feel. Compared to other performance modifications, a big bore kit can be a relatively straightforward upgrade, often requiring minimal additional changes to the engine. One of these S&S Cycle 96 in. big bore kits can be a great starting point for further performance upgrades like camshaft changes, ported heads, and upgraded intake systems to maximize power gains.
Not Yet Reviewed
$1,366.95
S&S Cycle 131 in. big bore kits are aimed at the Milwaukee Eight platform for 2017 and newer big twins—and open up a whole new level of performance for these engines. When paired with an S&S 4.625 in. stroker flywheel (sold separately), engine will be a true 131cubic inches. S&S builds their big bore kits and cranks to much tighter tolerances and with higher quality materials than the factory parts. If you're the proud owner of a Harley-Davidson® Milwaukee Eight big twin and have been waiting for just the thing to boost your M8's power—the wait is over! The S&S Cycle piston/cylinder kits will be a solid platform for massive power! Features and benefits: * Huge displacement increase means huge power increase * Bolt-on kit works with stock crankcases * 4 1/4 in. bore cylinders with a new 11:1 forged piston design * Original engine serial numbers are retained * Powdercoat finish match factory finish, giving the bike a "sleeper" advantage * Includes .045 in. multi-layered steel head gaskets * Retains stock engine height * Includes 131 in. Cam Cover Badge * Available with or without highlighted fins Note: This kit must be used with S&S Cycle stroker flywheels to achieve 131 in. displacement (P/N: 320-0605, 320-0620).
Not Yet Reviewed
$1,403.96
These big block flat top pistons by JE Pistons are compatible with forced induction, nitrous, and angle-milled heads. Valve reliefs will accommodate oversized valves and long-duration, tight lobe separation cams. Their compression height is figured using a 9.780 in. block height with zero deck clearance. Precision CNC-machined ring grooves accept 1/16, 1/16, 3/16 rings. These pistons will fit both open and closed chamber cylinder heads.
( 3 )
$1,024.99
JE Pistons 302/351W flat top pistons are designed to be compatible with nitrous applications. They will accommodate larger valves and long-duration, tight lobe separation cams. Their precision CNC-machined ring grooves accept 1/16, 1/16, 3/16 rings.
Not Yet Reviewed
$1,024.99
Shaping the future with innovative strength, Top Alcohol Hemi PowerPak piston sets from Mahle Motorsports offer a race-proven design using a specialized alloy. They feature the highest quality and reliability from the technology leader in piston and ring design. Make your Hemi do things others can't with a Mahle Top Alcohol Hemi PowerPak piston set! More product features and specs include: * 0.290 in. dome height * Intake depth of 0.330 in. * Exhaust depth of 0.315 in. * Includes 1.094 in. x 0.200 in. x 2.850 in. H13 pin and buttons
Not Yet Reviewed
$1,236.65
These classic, race-winning 350/400 standard flat top JE Pistons work with most aftermarket 23 degree heads. They have extra-deep valve pockets and a low-friction skirt design. They are to be used with 1/16, 1/16, 3/16 or 1/16, 1/16, 3.0mm rings.
Not Yet Reviewed
$1,024.99
JE Pistons 350/400 18 degree flat top pistons are compatible with angle milled heads and feature a race-proven, low-friction skirt design. Valve reliefs will accommodate oversized valves and long-duration, tight lobe separation cams. Precision CNC-machined grooves accept 1/16, 1/16, 3/16 rings. These pistons utilize dedicated left and right hand forgings.
Not Yet Reviewed
$1,024.99
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons for domestic applications, and their performance has been proven in victory lane time and time again. JE Pistons big block inverted dome top pistons are forged using 2618 aluminum, yielding high-tensile strength needed for high-demand performance applications, and they are designed specifically for each engine and use application to provide optimized performance durability. They feature JE Pistons' proprietary Forged Side Relief (FSR) forging design to minimize friction and power loss with reduced skirt width and save additional weight with a shorter wrist pin. Their precision CNC-machined ring grooves accept 1/16, 1/16, 3/16 in. rings (not included). JE big block inverted dome top pistons are available in different size specs, and can be ordered individually or in larger sets.
( 1 )
$1,024.99
JE Pistons Brodix -12 15 degree dome top pistons are designed to work with most of the new 15 degree chamber designs. The race-proven hollow dome forging by JE Pistons is the newest design for Sprint Car applications. These pistons have deep valve reliefs to accommodate oversized valves and long-duration, tight lobe separation cams. They accept 1/16, 1/16, 3/16 rings. These pistons utilize hollow dome dedicated left and right hand forgings.
Not Yet Reviewed
$1,099.99
JE Pistons big block nitrous series dome top pistons have ring lands designed for nitrous applications. Valve reliefs are designed to accept oversized valves and long-duration, wide-lobe separation camshafts, and they are also compatible with angle milled heads. Precision CNC-machined grooves accept 1/16, 1/16, 3/16 rings. They fit open chamber cylinder heads.
Not Yet Reviewed
$1,024.99
—
$1,099.99
JE Pistons extreme duty 23 degree inverted dome top pistons are specially designed for forced induction and nitrous applications. These pistons include 3.10 in. pocket depths and precision CNC-machined ring grooves. They accept 1/16, 1/16, 3/16 rings.
( 1 )
$1,024.99
JE Pistons open chamber dome top gas ported pistons are the top choice for drag race applications. These pistons have vertical gas ports, backcut top and D wall second rings (.043, .043, 3.0mm), and a low-tension oil ring. Their compression height is figured using a 9.780 in. block height with zero deck clearance. They include a pin and double Spiro locks.
Not Yet Reviewed
$1,199.99
The rings lands, crown, and bottom band of JE Pistons nitrous series dome top pistons are specifically designed for nitrous applications. The valve reliefs accommodate most oversized valves and long-duration, wide lobe separation cams. Their precision CNC-machined ring grooves accept 1/16, 1/16, 3/16 rings, and hardened nitrous series rings are also available. These pistons will not fit Pro Topline or Brodix 11X cylinder heads.
Not Yet Reviewed
$1,099.99
JE Pistons 350/400 small block dome top pistons are high-compression pistons that are compatible with most aftermarket 23 degree heads and are ideal for drag race and Circle Track applications. Valve reliefs will accommodate oversized valves and long-duration, tight lobe separation cams. Precision CNC ring grooves are designed for 1/16, 1/16, 3/16 rings. However, these will not fit JE Pistons Pro Topline or Brodix cylinder heads.
( 1 )
$1,024.99
JE Pistons big block open chamber dome top pistons are an excellent choice for drag race applications. Their compression height is figured using a 9.780 in. block height with zero deck clearance. The pistons include a pin, double Spiro locks, and double pin oilers. Their precision CNC-machined ring grooves will accept 1/16, 1/16, 3/16 rings.
( 4 )
$1,024.99
Diamond Pistons Big Block 24/26 Degree Street/Strip Flat Top Series pistons are available for a variety of applications, including many Chevrolet V-8 engines from 1965-90. Forged from aluminum with single valve relief, these flat top-style pistons are offered in different bore, stroke, and rod length sizes—along with several other options. Order individually or in a set of 8. Additional details: * 1,200 hp rated * Forced pin oilers from the oil ring * Pin fitted * 3-D pockets * Designed for mild boost applications * Pins, locks and support rails (if required) included
Not Yet Reviewed
$1,338.98
—
$1,542.99
Modal Header
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
