Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
Engines & Components
Availability
Engines & Engine Parts
Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched...
Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your...
Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your daily driver.
Showing In Stock Items. Show All 195 Items.
550C CHAIN DRIVE CAMS
Part Number: SSY-330-0643
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
CHAIN DRIVE CAM, 475 CHAIN DRIVE CAM W/CAL
Part Number: SSY-330-0725
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
S&S Cycle 2017+ Water Cooled M8 Models Chain Drive 475C Cam Chest Kit w/ Chrome Pushrod Tubes
Part Number: SSY-310-1000B
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
CAMSHAFT CHAIN DRIVE, CAMSHAFT CHAIN DRIVE 540C M8
Part Number: SSY-330-0713
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
S&S Cycle 2017+ M8 Models Gear Drive 475G Cam Chest Kit w/ Black Pushrod Tubes - Oil Cooled
Part Number: SSY-310-1014A
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Oil Catch Can, Harley-Davidson®, Milwaukee Eight, Black, Stock Air Cleaner, Screaming Eagle Air Cleaner, Kit
Part Number: MOR-85723
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Piston Set, Super Duty KB Forged Coated Anodized Piston - Big Bore 120" Milwaukee 8 114" and 117" bored to 4.125"
Part Number: UEM-KB542LCASTD
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Powersports Pistons, 2017-2022 Harley Milwaukee Eight 131 ci, 4.310" bore, 4.500" stroke, 12.0:1 CR, 1.080" CH
Part Number: CPD-M5122
Not Yet Reviewed
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Oil Catch Can, Harley-Davidson®, Milwaukee Eight, Polished, Stock Air Cleaner, Screaming Eagle Air Cleaner, Kit
Part Number: MOR-85722
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Harley Davidson Milwaukee 8 128" 4.250x4.500 -2.5cc 2017-Present 11.7:1
Part Number: UEM-KB596LCA005
Not Yet Reviewed
Estimated Ship Date: Apr 28, 2026 if ordered today
Estimated Ship Date: Apr 28, 2026 if ordered today
Engine Piston, HD Milwaukee 8 CVO 128cid 11.0:1 CR (X)
Part Number: WIS-40226PS
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Piston Set, KB Forged Coated Anodized Piston - Big Bore 120" Milwaukee 8 114" and 117" bored to 4.125"
Part Number: UEM-KB542LCA020
Not Yet Reviewed
Estimated Ship Date: Apr 28, 2026 if ordered today
Estimated Ship Date: Apr 28, 2026 if ordered today
Engine Piston, HD Milwaukee 8 114cid 11.0:1 CR (X)
Part Number: WIS-40180PS
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Engine Piston, HD Milwaukee 8 CVO 121cid 11.0:1 CR (X)
Part Number: WIS-40225PS
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Piston Set, Super Duty KB Forged Coated Anodized Piston - Big Bore 120" Milwaukee 8 114" and 117" bored to 4.125"
Part Number: UEM-KB542LCA040
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Piston Set, Super Duty KB Forged Coated Anodized Piston - Big Bore 120" Milwaukee 8 114" and 117" bored to 4.125"
Part Number: UEM-KB542LCA030
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Piston Set, Super Duty KB Forged Coated Anodized Piston - Big Bore 120" Milwaukee 8 114" and 117" bored to 4.125"
Part Number: UEM-KB542LCA010
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Engine Valve Spring Kit, Harley Milwaukee 8 Beehive Spring Kit w/ Tool Steel Retainers; .530" Max Lift
Part Number: CCA-9715-KIT
Not Yet Reviewed
Estimated Ship Date: May 12, 2026 if ordered today
Estimated Ship Date: May 12, 2026 if ordered today
Engine, LO206, Sealed, Briggs & Stratton Racing Engine, Carbureted, Aluminum, Pull Start, Used in Karting, Microstocks, and Jr. Drag Racing, Each
Part Number: PWD-124332-8201
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Crate Engine, Animal, Long Block, 8.5:1 Compression, Karting, Each
Part Number: PWD-124332-8003
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
PERFORMANCE, 131" KIT - BLACK FINS M8
Part Number: SSY-910-0763
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
S&S Cycle 2017+ M8 Models 4.250in Bore Unhoned Front Cylinder - Black Granite w/ Highlight
Part Number: SSY-910-0740
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
