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.
Showing In Stock Items. Show All 128 Items.
CRANKSHAFT SPROCKET
Part Number: CLO-S999
Not Yet Reviewed
Estimated Ship Date: Jan 29, 2026 if ordered today
Estimated Ship Date: Jan 29, 2026 if ordered today
Piston, Hypereutectic, Flat, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, GM, V8, V6, Each
Part Number: UEM-S9901HC-STD
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Engine Timing Idler Sprocket, Engine Timing Idler Sprocket
Part Number: CLO-S994
Not Yet Reviewed
Estimated Ship Date: Jan 26, 2026 if ordered today
Estimated Ship Date: Jan 26, 2026 if ordered today
Engine Oil Pump Sprocket, Engine Oil Pump Sprocket
Part Number: CLO-S996
Not Yet Reviewed
Estimated Ship Date: Jan 26, 2026 if ordered today
Estimated Ship Date: Jan 26, 2026 if ordered today
Piston, Hypereutectic, Dome, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, GM, V8, V6, Each
Part Number: UEM-S9904HC-040
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Piston, Hypereutectic, Flat, 4.145 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Each
Part Number: UEM-S9907HC-020
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Piston, Hypereutectic, Flat, 4.155 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Each
Part Number: UEM-S9911HC-030
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Piston, Hypereutectic, Flat, 4.165 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Each
Part Number: UEM-S9911HC-040
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Piston, Hypereutectic, Flat, 4.185 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Each
Part Number: UEM-S9911HC-060
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Piston, Hypereutectic, Flat, 4.125 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Each
Part Number: UEM-S9911HC-STD
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Piston, Hypereutectic, Dish, 4.020 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Each
Part Number: UEM-S9912HC-020
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Piston, Hypereutectic, Dish, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Each
Part Number: UEM-S9912HC-030
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Piston, Hypereutectic, Dish, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Each
Part Number: UEM-S9912HC-STD
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
KB Single Claimer Piston - Chevy 383, Rod 5.700, Dish 18cc 2V
Part Number: UEM-S9956HC-020
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
KB Single Claimer Piston - Chevy 383, Rod 5.700, Dish 18cc 2V
Part Number: UEM-S9956HC-040
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Piston, Hypereutectic, Flat, 4.020 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, GM, V8, V6, Each
Part Number: UEM-S9901HC-020
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Piston, Hypereutectic, Flat, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, GM, V8, V6, Each
Part Number: UEM-S9901HC-030
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Piston, Hypereutectic, Flat, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, GM, V8, V6, Each
Part Number: UEM-S9901HC-040
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Piston, Hypereutectic, Flat, 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, GM, V8, V6, Each
Part Number: UEM-S9901HC-060
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Piston, Hypereutectic, Dome, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, GM, V8, V6, Each
Part Number: UEM-S9903HC-030
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Piston, Hypereutectic, Dome, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, GM, V8, V6, Each
Part Number: UEM-S9903HC-STD
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Piston, Hypereutectic, Dome, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, GM, V8, V6, Each
Part Number: UEM-S9904HC-030
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Piston, Hypereutectic, Dome, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, GM, V8, V6, Each
Part Number: UEM-S9904HC-STD
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Piston, Hypereutectic, Dome, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, GM, 8, V6, Each
Part Number: UEM-S9905HC-040
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Piston, Hypereutectic, Flat, 4.020 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Each
Part Number: UEM-S9906HC-020
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
