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.
VALVE-R/M 1.600, +.100, .3136 STEM
Part Number: MAN-12303-8
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Vent Tank, Round, 20 oz. Capacity, Aluminum, Natural, -8 AN Male Threads Inlet, Each
Part Number: JOE-12303
Not Yet Reviewed
Estimated Ship Date: Apr 16, 2026 if ordered today
Estimated Ship Date: Apr 16, 2026 if ordered today
Domestic Series - 1000HP Rated - 2618 Material - Includes Pins and Rings
Part Number: DPP-12303-8
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
VALVE-R/M 1.600, +.100, .3136 STEM
Part Number: MAN-12303-1
Not Yet Reviewed
Estimated Ship Date: May 15, 2026 if ordered today
Estimated Ship Date: May 15, 2026 if ordered today
CH BB DM 4.290B/4.000S/6.135R/1.645CD N/
Part Number: DPP-12303
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Piston Set, 400 SBC 1-FX Series -16cc Dish Top Piston Set. 4.185 bore
Part Number: DMS-1-2303-4185
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Piston Set, 383 SBC 1-FX Series -16cc Dish Top Piston Set. 4.060 bore
Part Number: DMS-1-2303-4060
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Piston Set, 400 SBC 1-FX Series -16cc Dish Top Piston Set. 4.125 bore
Part Number: DMS-1-2303-4125
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
396/454 24° 4.290B/1.645CD/Kit
Part Number: DPP-12303-8-H
Not Yet Reviewed
Estimated Ship Date: Apr 10, 2026 if ordered today
Estimated Ship Date: Apr 10, 2026 if ordered today
Piston Set, 383 SBC 1-FX Series -16cc Dish Top Piston Set. 4.000 bore
Part Number: DMS-1-2303-4000
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Piston Set, 400 SBC 1-FX Series -16cc Dish Top Piston Set. 4.165 bore
Part Number: DMS-1-2303-4165
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Piston Set, 400 SBC 1-FX Series -16cc Dish Top Piston Set. 4.155 bore
Part Number: DMS-1-2303-4155
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
COMPETITION ASSEMBLY CHEV LT1, 350 1PC
Part Number: ESP-12303L040
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
Piston Set, 383 SBC 1-FX Series -16cc Dish Top Piston Set. 4.040 bore
Part Number: DMS-1-2303-4040
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Piston Set, 383 SBC 1-FX Series -16cc Dish Top Piston Set. 4.030 bore
Part Number: DMS-1-2303-4030
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
ROTATING ASSEMBLY
Part Number: ESP-12303L000
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
COMPETITION ASSEMBLY CHEV LT1, 350 1PC
Part Number: ESP-12303L060
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
ROTATING ASSEMBLY
Part Number: ESP-12303L030
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
COMPETITION ASSEMBLY CHEVY 350
Part Number: ESP-12303060
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
Engine Rotating Assembly, Forged Crank, Hypereutectic Pistons, H-Beam Rods, Chevy, Small Block, Kit
Part Number: ESP-12303040
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
COMPETITION ASSEMBLY CHEVY 350
Part Number: ESP-12303000
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
Engine Rotating Assembly, Forged Crank, Hypereutectic Pistons, H-Beam Rods, Chevy, Small Block, Kit
Part Number: ESP-12303030
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
BALANCED COMPETITION ASSEMBLY CHEV 350
Part Number: ESP-B12303L060
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
BALANCED COMPETITION ASSEMBLY CHEV 350
Part Number: ESP-B12303L040
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
ROTATING ASSEMBLY
Part Number: ESP-B12303L030
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
