Engines & Components
Availability
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.
ENGINE PERFORMANCE, 124" 4-1/8" BORE, CYLNDR ST 4-1/8" BR 124"
Part Number: SSY-910-0338
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
124 HOT SET UP W/HEADS BLK
Part Number: SSY-900-0565
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
Top End Engine Kit, M8 124 in. Big Bore, Wrinkle Black Finish with Highlighted Fins, 4.250 in., Forged Piston, Harley-Davidson®, Kit
Part Number: SSY-910-0625
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
PISTONS, PISTON/CYLINDER KIT 124
Part Number: SSY-910-0223
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
Top End Engine Kit, M8 124 in. Big Bore, Wrinkle Black Finish, 4.250 in., Forged Piston, Harley-Davidson®, Kit
Part Number: SSY-910-0681
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
124 HOT SET UP W/HEADS BLK
Part Number: SSY-900-0564
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
Top End Engine Kit, 124 in. Hot Set Up, Cylinder Heads, Cylinders, Pistons, Crank, Rockers, Gaskets, Kit
Part Number: SSY-900-0568
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
124 HOT SET UP W/HEADS BLK
Part Number: SSY-900-0569
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
S&S Cycle 07-16 BT 124in Standard Compression 4-1/8in Big Bore Kit - Stone Gray
Part Number: SSY-910-0469
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
S&S Cycle 99-06 w/ 89cc/91cc Heads 4 1/8in Bore Cyl & Piston Kit For 124in Hot Set Up Kit - Wblack
Part Number: SSY-910-0222
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
S&S Cycle 99-06 BT 4-1/8in Bore Cylinder & Piston Kit - Silver
Part Number: SSY-910-0215
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
S&S Cycle 2017+ M8 Models 4.250in Bore 550G Cam Power Pack - Black w/ Highlight
Part Number: SSY-310-1051A
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
S&S Cycle 2017+ M8 124in CI Oil Cooled Power Pack w/ Chrome Pushrod Tubes
Part Number: SSY-310-1052B
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
S&S Cycle 2017 M8 Models 124in CI Oil Cooled w/ Chrome Pushrod Tubes & Highlighted Fins
Part Number: SSY-310-1053A
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
S&S Cycle 2017+ M8 Models 4.250in Bore 550C Cam w/ Black Pushrods Power Pack - Black w/ Highlight
Part Number: SSY-310-1054B
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
S&S Cycle 2017+ M8 124in CI Oil Cooled Power Pack w/ Black Pushrod Tubes w/ Highlight
Part Number: SSY-310-1056B
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
S&S Cycle 07-16 BT 124in Low Compression 4-1/8in Big Bore Kit - Wrinkle Black
Part Number: SSY-910-0324
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
S&S Cycle 2017+ M8 Models 4.250in Bore 550C Cam w/ Chrome Pushrods Power Pack - Black w/ Highlight
Part Number: SSY-310-1050B
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
S&S Cycle 2017+ M8 124in CI Oil Cooled Power Pack w Black Pushrod Tubes w/o Highlight
Part Number: SSY-310-1057B
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
S&S Cycle 2017 M8 Models 124in CI Oil Cooled w/ Black Pushrod Tubes & Highlighted Fins
Part Number: SSY-310-1058A
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
S&S Cycle 2017+ M8 124in CI Oil Cooled Power Pack w/ Black Pushrod Tubes w/o Highlight
Part Number: SSY-310-1059A
Not Yet Reviewed
Estimated Ship Date: Aug 26, 2025 if ordered today
Estimated Ship Date: Aug 26, 2025 if ordered today
Alternator Pulley, Billet Aluminum, Black, 6-Groove Serpentine, 1.750 in. Diameter, Chevy, Each
Part Number: MCH-124-08
Estimated Ship Date: Today
Estimated Ship Date: Today
Cylinder Head Studs, Hex Head, Buick 1961-63, 215, V8, Kit
Part Number: ARP-124-4002
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Harmonic Balancer, Nodular Iron, Black, 7.50 in. o.d., Ford, 7.3L Powerstroke Diesel, Each
Part Number: RNB-594-124
Not Yet Reviewed
Estimated Ship Date: Aug 25, 2025 if ordered today
Estimated Ship Date: Aug 25, 2025 if ordered today
Crankcase Breather Filter, Push-In, 0.625 in. I.D., 1.50 in. O.D., 1.50 in. Length, Each
Part Number: UFI-UP-124
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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