Engines & Engine Parts

Piston, Forged, Dome, 2-Valve Reliefs, 4.030 in. Bore, 3.750 in. Stroke, 6.000 in. Rod, 1.125 in. Compression, Chevy, Right, Each

Part Number: JEP-232509R

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Estimated Ship Date: May 18, 2026 if ordered today

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Piston, Forged, Dome, 2-Valve Reliefs, 4.625 in. Bore, 4.250 in. Stroke, 6.535 in. Rod, 1.120 in. Compression, Chevy, Right, Each

Part Number: JEP-293085R

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Estimated Ship Date: May 18, 2026 if ordered today

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Piston, Forged, Dome, 2-Valve Reliefs, 4.040 in. Bore, 3.750 in. Stroke, 6.000 in. Rod, 1.125 in. Compression, Chevy, Right, Each

Part Number: JEP-232510R

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Estimated Ship Date: May 18, 2026 if ordered today

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Piston, Forged, Dome, 2-Valve Reliefs, 4.060 in. Bore, 3.750 in. Stroke, 6.000 in. Rod, 1.125 in. Compression, Chevy, Right, Each

Part Number: JEP-232511R

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Estimated Ship Date: May 18, 2026 if ordered today

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Cylinder Head (One) Cast Iron LLY/LBZ/LMM Ported

Part Number: PPE-110100113

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Estimated Ship Date: May 22, 2026 if ordered today

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Piston, Forged, Dome, 2-Valve Reliefs, 4.610 in. Bore, 4.250 in. Stroke, 6.535 in. Rod, 1.120 in. Compression, Chevy, Right, Each

Part Number: JEP-293084R

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Estimated Ship Date: May 18, 2026 if ordered today

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Piston, Forged, Dome, 2-Valve Reliefs, 4.600 in. Bore, 4.250 in. Stroke, 6.385 in. Rod, 1.290 in. Compression, Chevy, Each

Part Number: JEP-258201-1

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Estimated Ship Date: May 18, 2026 if ordered today

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Piston, Forged, Dome, 2-Valve Reliefs, 4.060 in. Bore, 3.750 in. Stroke, 6.000 in. Rod, 1.125 in. Compression, Chevy, Left, Each

Part Number: JEP-232511L

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Estimated Ship Date: May 18, 2026 if ordered today

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Cylinder Head, Pro-Port Raw, Bare, Aluminum, Oval Intake Port, Round Exhaust Port, Chevy, Big Block, Each

Part Number: EDL-614669

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Estimated Ship Date: May 27, 2026 if ordered today

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Cylinder Head, Big Victor Spread-Port 14 Degree CNC, Bare, Aluminum, Chevy, Big Block, Each

Part Number: EDL-618369

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Estimated Ship Date: May 27, 2026 if ordered today

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Cylinder Head, Twisted Wedge® 11R 170, CNC Street Ported, Assembled, 53cc CNC Chambers, Small Ford, Each

Part Number: TFS-52515301-C00

5.0 out of 5 stars ( 7 )

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Crate Engine, Oval Port, 9.6:1, 4-Bolt Mains, Chevy ZZ502, 508 hp, 580 ft.-lbs. of Torque, with Flexplate, Big Block, 8.2L, Chevy, Each

Part Number: NAL-19433162

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Cylinder Head, Enforcer, Aluminum, Assembled, 64cc Chamber, 210cc Intake, Cathedral Port, Chevrolet, LS, Each

Part Number: AFR-1501

5.0 out of 5 stars ( 3 )

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Gen. 3/4 Chevy LS Rocker Arm Trunnion Upgrade Kit, Bronze Bushing, Retrofit, Rectangle and Cathedral Port Rockers, Set of 16

Part Number: SUM-141560

4.34 out of 5 stars ( 71 )

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Cylinder Head, PowerPort® 240, CNC Street Ported, Assembled, 1.550" Dual Springs, Big Chrysler, Mopar, Each

Part Number: TFS-61617802-C00

4.86 out of 5 stars ( 14 )

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Rocker Arms, Trunnion Upgrade, Assembled, Cast Steel, 1.7 Ratio, Straight Body, Cathedral Port, Chevy, LS1, LS2, LS6, LQ4, LQ9, Set of 16

Part Number: SUM-141556

4.06 out of 5 stars ( 17 )

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Rocker Arms, Roller Bearing Trunnion, L92/LS9/LS3, Assembled, Heavy Duty Cast Steel, 1.7 Ratio, Rectangle Port, Chevy, Set of 16

Part Number: SUM-141554

5.0 out of 5 stars ( 7 )

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Cylinder Head, PowerPort® 175, Street Port, Assy, 70cc Chambers, 1.55 in. Springs, Ford 390, 406, 427, 428, Each

Part Number: TFS-56417002-C00

5.0 out of 5 stars ( 5 )

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Cylinder Head, Performer RPM 454-O High-Compression, Assembled, 100cc Chamber, Hydraulic Roller, Oval/Round Ports, Aluminum, Chevy, Big Block, Each

Part Number: EDL-60435

3.44 out of 5 stars ( 9 )

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Cylinder Head, PowerPort® 240, CNC Street Ported, Assembled, 1.460" Dual Springs, Big Chrysler, Mopar, Each

Part Number: TFS-61617801-C00

5.0 out of 5 stars ( 7 )

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Cylinder Heads, Street Porting, Aluminum, Assembled, 58cc Chamber, 185cc Intake, Ford, Small Block, Pair

Part Number: AFR-1388

4.67 out of 5 stars ( 27 )

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Chevy LS Cylinder head, 210cc Cathedral port Intake Runner, 64cc Chamber, 2.02 Intake Valve 1.6 Exhaust Valve, 3.898+ bore sizes, Max .660 Lift, Each

Part Number: SUM-162LS210CATH

3.4 out of 5 stars ( 5 )

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Cylinder Head, PowerPort® 175, Street Port, Assy, 70cc Chamb, 1.550 in. Sp, Ti Ret, Ford 390, 406, 427, 428, Each

Part Number: TFS-5641T703-C00

4.5 out of 5 stars ( 2 )

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Cylinder Head, PowerPort® 190, CNC Street Ported, Assembled, 1.46" Springs, Chromoly Retain, Small Mopar, Each

Part Number: TFS-61417801-C00

5.0 out of 5 stars ( 6 )

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Cylinder Head, Twisted Wedge® 11R 227, CNC Competition Ported, Assembled, 56cc CNC Chambers, Titanium Retainers, Small Ford, Each

Part Number: TFS-5261T561-C04

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