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...

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Results 1 - 25 of 84

Hastings Piston Ring Sets for 1975-1987 XJ6 - 6800

Engine Piston Ring Set, 6-Cyl Ring Set; Phosphate

Part Number: HSN-6800

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

Summit Racing™ Steel Rocker Arms SUM-G6800

Rocker Arms, Stud Mount, OEM-Style, Stamped Steel, 1.5 Ratio, Fits 3/8 in. Stud, Chevy, Small Block, Set of 16

Part Number: SUM-G6800

4.86 out of 5 stars ( 56 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Summit Racing™ Pro BBC 4-7 Swap Hydraulic Roller Camshafts SUM-1258

Summit Racing™ Pro BBC 4-7 Swap Hydraulic Roller Camshafts SUM-1258

PRO BBC H.R. 8 Hydraulic Roller Cam, 4/7 Swap, 252/258 Duration @ .050, 112.5 LSA + 8.5 Adv. , .620/.620 with 1.7 ratio, .656/.656 with 1.8, 3900-6800

Part Number: SUM-1258

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Callies Street Series Camshafts 180-042

Camshaft, LS Turbo 220, 220°/226° @ .050", .600"/.600" lift, 115°+4 LSA, 2500–6800 RPM

Part Number: CPI-180-042

Not Yet Reviewed

Estimated Ship Date: Jul 7, 2026 if ordered today

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Estimated Ship Date: Jul 7, 2026 if ordered today

Summit Racing™ Replacement Rocker Arm Ball and Nut Kits SUM-G6800-K

Rocker Arm Nuts, Replacement Ball and Nut Kit for SUM-G6800/G6801, Set of 8

Part Number: SUM-G6800-K

4.82 out of 5 stars ( 22 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits K2-6800-4065

-1.5cc Flat Top Gen III Hemi Forged 2618

Part Number: DMS-K2-6800-4065

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Pistons 1-6800-4075

-1.5cc Flat Top Gen III Hemi Forged 4032

Part Number: DMS-1-6800-4075

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons 2-6800-4085

-1.5cc Flat Top Gen III Hemi Forged 2618

Part Number: DMS-2-6800-4085

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Pistons 1-6800-4055

-1.5cc Flat Top Gen III Hemi Forged 4032

Part Number: DMS-1-6800-4055

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Pistons 1-6800-4085

-1.5cc Flat Top Gen III Hemi Forged 4032

Part Number: DMS-1-6800-4085

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Pistons 1-6800-4065

-1.5cc Flat Top Gen III Hemi Forged 4032

Part Number: DMS-1-6800-4065

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6800-4075

-1.5cc Flat Top Gen III Hemi Forged 2618

Part Number: DMS-K3-6800-4075

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits K2-6800-4075

-1.5cc Flat Top Gen III Hemi Forged 2618

Part Number: DMS-K2-6800-4075

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6800-4065

-1.5cc Flat Top Gen III Hemi Forged 2618

Part Number: DMS-K3-6800-4065

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-6800-4085

-1.5cc Flat Top Gen III Hemi Forged 4032

Part Number: DMS-K1-6800-4085

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6800-4085

-1.5cc Flat Top Gen III Hemi Forged 2618

Part Number: DMS-3-6800-4085

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-6800-4065

-1.5cc Flat Top Gen III Hemi Forged 4032

Part Number: DMS-K1-6800-4065

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Oliver Big Block Max Series Connecting Rods C6800BBMX8

Connecting Rods, Big Block Max Series, Forged 4340 Steel I-Beam, 12-Point, Cap Screw, 6.800 in. Long, Chevy, Big Block, Set of 8

Part Number: OLV-C6800BBMX8

Not Yet Reviewed

Estimated Ship Date: Apr 8, 2026 if ordered today

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Estimated Ship Date: Apr 8, 2026 if ordered today

Callies Street Series Camshafts 180-093

Camshaft, LS Centrifugal 226, 226°/238° @ .050", .600"/.600" lift, 114°+5 LSA, 2600–6800 RPM

Part Number: CPI-180-093

Not Yet Reviewed

Estimated Ship Date: Jul 7, 2026 if ordered today

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Estimated Ship Date: Jul 7, 2026 if ordered today

Scat Forged Standard Weight Crankshafts 4-426-4500-6800-2200

Forged 4340 Standard Weight

Part Number: SCA-4426018

Not Yet Reviewed

Estimated Ship Date: Jun 10, 2026 if ordered today

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Estimated Ship Date: Jun 10, 2026 if ordered today

Scat Forged Standard Weight Crankshafts 4-426-4150-6800-2200

Forged 4340 Standard Weight

Part Number: SCA-4426013

Not Yet Reviewed

Estimated Ship Date: Jun 10, 2026 if ordered today

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Estimated Ship Date: Jun 10, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons 2-6800-4065

-1.5cc Flat Top Gen III Hemi Forged 2618

Part Number: DMS-2-6800-4065

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons 2-6800-4055

-1.5cc Flat Top Gen III Hemi Forged 2618

Part Number: DMS-2-6800-4055

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-6800-4055

-1.5cc Flat Top Gen III Hemi Forged 4032

Part Number: DMS-K1-6800-4055

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6800-4055

-1.5cc Flat Top Gen III Hemi Forged 2618

Part Number: DMS-K3-6800-4055

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

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