Engines & Engine Parts

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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...

Showing All Items, Including Not in Stock Items That Match "V304"

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Results 1 - 25 of 201

Melling Valves V3042

Valve, Exhaust, 45 degree Seat Angle, Steel, 1.590 in. Valve Head Diameter, 4.915 in. Overall Length, Cadillac, Chevy, GMC, 6.0L LS, 6.2L LS, Each

Part Number: MEL-V3042

Not Yet Reviewed

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Standard Motor PCV Valves for 1992-1995 CIVIC - V304

PCV Valve, Replacement, Straight, for use on Honda®, Each

Part Number: SMP-V304

Not Yet Reviewed

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Melling Valves V3040

VALVE-INTAKE

Part Number: MEL-V3040

Not Yet Reviewed

Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

Melling Valves V3046

Exhaust Valve, VALVE-EXHAUST

Part Number: MEL-V3046

Not Yet Reviewed

Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

Melling Valves V3044

Engine Exhaust Valve, Stock Replacement

Part Number: MEL-V3044

Not Yet Reviewed

Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

Melling Valves for 2006-2011 RIO5, RIO, 2001-2011 ACCENT - V3047

Intake Valve, VALVE-INTAKE

Part Number: MEL-V3047

Not Yet Reviewed

Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

Melling Valves V3043

Engine Intake Valve, Stock Replacement I

Part Number: MEL-V3043

Not Yet Reviewed

Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

Powermaster V-Belt Alternator Pulleys 304

Powermaster V-Belt Alternator Pulleys 304

Alternator Pulley, V-Belt, 1-Groove, Steel, Chrome, 2.375 in. Diameter, Each

Part Number: PWM-304

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

MAHLE Original Cylinder Sleeve Seals S40220.040

Sleeve Assembly Ring Set - Navistar (International Truck), V304, V304A, V304E, V345, V345E 3.875" Bore

Part Number: MAH-S40220040

Not Yet Reviewed

Estimated Ship Date: Apr 23, 2026 if ordered today

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Estimated Ship Date: Apr 23, 2026 if ordered today

MAHLE Original Cylinder Sleeve Seals S40220.030

Sleeve Assembly Ring Set - Navistar (International Truck), V304, V304A, V304E, V345, V345E 3.875" Bore

Part Number: MAH-S40220030

Not Yet Reviewed

Estimated Ship Date: Apr 23, 2026 if ordered today

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Estimated Ship Date: Apr 23, 2026 if ordered today

MAHLE Original Cylinder Sleeve Seals S40220

Sleeve Assembly Ring Set - Navistar (International Truck), V304, V304A, V304E, V345, V345E 3.875" Bore

Part Number: MAH-S40220

Not Yet Reviewed

Estimated Ship Date: Apr 23, 2026 if ordered today

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Estimated Ship Date: Apr 23, 2026 if ordered today

WIX Filters Oil Filters 51515

Oil Filter, Replacement, 21 Micron, 5.197 in. Tall, 3.661 in. OD, 3/4-16 in. Thread, Each

Part Number: WIX-51515

4.95 out of 5 stars ( 38 )

Estimated Ship Date: Today

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K&N Performance Gold Oil Filters HP-3001

Oil Filter, Performance Gold, Canister, 5.72 in. Tall, 3.66 in. Diameter, 3/4 in.-16 Thread, Bypass Relief, 8-11 psi, Anti-Drainback, Spin-On, Each

Part Number: KNN-HP-3001

4.81 out of 5 stars ( 83 )

Estimated Ship Date: Today

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Derale Engine Oil Filter Relocation Kits 15748

Oil Filter Relocation Kit, Single Filter, 3/4-16 in. Filter Threads, Various Engine Threads, Kit

Part Number: DER-15748

4.91 out of 5 stars ( 11 )

Estimated Ship Date: Today

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Fram HP Series Oil Filters HP1

Oil Filter, HP Series, 3/4-16 in. Thread, 5.75 in. High, Each

Part Number: FRM-HP1

4.74 out of 5 stars ( 34 )

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Fram Tough Guard Oil Filters TG8A

Not Yet Reviewed

Estimated Ship Date: Today

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Lares Power Steering Pulleys 162

Pulley, Power Steering, Saginaw, V-Belt, 1-Groove, Keyway, Steel, Black, 5.800 in. Diameter, Each

Part Number: LSC-162

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Fram Extra Guard Oil Filters PH8A

Oil Filter, Extra Guard, 3/4 in.-16 Thread, 5.156 in. High, Each

Part Number: FRM-PH8A

4.79 out of 5 stars ( 24 )

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WIX Filters Oil Filters 51085

5 out of 5 stars ( 15 )

Estimated Ship Date: Today

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Lares Power Steering Pulleys 160

Pulley, Power Steering, Saginaw, V-Belt, 1-Groove, Keyway, Steel, Chrome, 5.800 in. Diameter, Each

Part Number: LSC-160

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Lares Power Steering Pulleys 161

Pulley, Power Steering, Saginaw, V-Belt, 2-Groove, Keyway, Steel, Chrome, 5.800 in. Diameter, Each

Part Number: LSC-161

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Melling Replacement Valve Locks VL-200

Valve Locks, Replacement, 1-groove, Steel, for 0.341 in. Valve Stem Diameter, AMC, Buick, Cadillac, Chevy, Edsel, Ford, GMC, Jeep, Olds, Mercury, Pair

Part Number: MEL-VL-200

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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