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...

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Results 1 - 13 of 13

Cloyes Timing Chain Guides 9-5581

Timing Chain Guide

Part Number: CLO-9-5581

Not Yet Reviewed

Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Enginetech Piston Ring Sets R37558-030

Engine Piston Ring Set 55-81 AMC/BUI/CHV/FRD/JEP/MER/PLY/PON 4.3L/4.5L/4.7L/4.8L/4.9L/5.0L/5.6L

Part Number: EGN-R37558030

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Enginetech Piston Ring Sets R37558-040

Engine Piston Ring Set 55-81 AMC/BUI/CHV/FRD/JEP/MER/PLY/PON 4.3L/4.5L/4.7L/4.8L/4.9L/5.0L/5.6L

Part Number: EGN-R37558040

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Enginetech Piston Ring Sets R37558-060

Engine Piston Ring Set 55-81 AMC/BUI/CHV/FRD/JEP/MER/PLY/PON 4.3L/4.5L/4.7L/4.8L/4.9L/5.0L/5.6L

Part Number: EGN-R37558060

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Enginetech Piston Ring Sets R37558-STD

Engine Piston Ring Set 55-81 AMC/BUI/CHV/FRD/JEP/MER/PLY/PON 4.3L/4.5L/4.7L/4.8L/4.9L/5.0L/5.6L

Part Number: EGN-R37558STD

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Wiseco Pistons 5581A3

AMC 390 V8 Flat Top

Part Number: WIS-5581A3

Not Yet Reviewed

Estimated Ship Date: May 20, 2026 if ordered today

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Estimated Ship Date: May 20, 2026 if ordered today

Melling Timing Chain Guides BT5581

TENSIONER

Part Number: MEL-BT5581

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

King Engine Bearings Main Bearings MB5581AM0.75

Crankshaft Main Bearings NISSAN

Part Number: KGB-MB5581AM075

Not Yet Reviewed

Estimated Ship Date: Jul 21, 2026 if ordered today

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Estimated Ship Date: Jul 21, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M5581S045