CHEVROLET Engines & Components

Pro LS 4340 Rotating Assembly, 347 Cid., 3.903 bore, 3.622 stroke, 58x, 6.125 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R5836L9033

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Pro LS 4340 Rotating Assembly, 347 Cid., 3.903 bore, 3.622 stroke, 58x, 6.125 rod, 7cc dish, 9.7:1 @ 65cc, 9.4:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R5836L9037

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Pro LS 4340 Rotating Assembly, 364 Cid., 4.000 bore, 3.622 stroke, 58x, 6.098 rod, 12cc dish, 9.6:1 @ 65cc, 9.2:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R583600012

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Pro LS 4340 Rotating Assembly, 365 Cid., 4.005 bore, 3.622 stroke, 58x, 6.098 rod, 12cc dish, 9.6:1 @ 65cc, 9.2:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R583600512

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Pro LS Rotating Assembly, 365 Cid., 4.005 bore, 3.622 stroke, 58x, 6.098 rod, 2cc Flat Top, 10.8:1 @ 65cc, 10.2:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R58360052

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Pistons, Speed of Air, Dimpled Piston, 4032 Forged, 4.030 in. Bore, 4.000 in. Stroke, 6.125 in. Rod, +4.00cc Flat Top, Piston Rings, Chevy, 6.0L, Kit

Part Number: UEM-XA552-030K2

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Estimated Ship Date: Nov 5, 2025 if ordered today

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Pistons, Hyperformance, Cerakote, 4.095 in. Bore, 3.898 in. Stroke, 6.420 in. Rod, 40.40cc Dish, Piston Rings, Chevy, GMC, Duramax 6.6L, Kit

Part Number: UEM-XA7210-10K1

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Pistons, Hyperformance, Cerakote, 4.095 in. Bore, 3.898 in. Stroke, 6.420 in. Rod, 40.40cc Dish, PVD Piston Rings, Chevy, GMC, Duramax 6.6L, Kit

Part Number: UEM-XA7210-10K2

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Pistons, Hyperformance, Cerakote, 4.085 in. Bore, 3.898 in. Stroke, 6.420 in. Rod, 38.00cc Dish, PVD Piston Rings, Chevy, GMC, Duramax 6.6L, Kit

Part Number: UEM-XA7218-075K2

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Pistons, Hyperformance, Cerakote, 4.075 in. Bore, 3.898 in. Stroke, 6.420 in. Rod, 40.40cc Dish, PVD Piston Rings, Chevy, GMC, Duramax 6.6L, Kit

Part Number: UEM-XA7220-05K2

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Pistons, Hyperformance, Cerakote, 4.075 in. Bore, 3.897 in. Stroke, 6.417 in. Rod, 41.70cc Dish, PVD Piston Rings, Chevy, GMC, Duramax 6.6L, Kit

Part Number: UEM-XA7225-05K2

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Pistons, Hyperformance, Cerakote, 4.095 in. Bore, 3.897 in. Stroke, 6.417 in. Rod, 41.70cc Dish, Piston Rings, Chevy, GMC, Duramax 6.6L, Kit

Part Number: UEM-XA7235-10K1

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Pistons, Hyperformance, Cerakote, 4.095 in. Bore, 3.897 in. Stroke, 6.417 in. Rod, 41.70cc Dish, PVD Piston Rings, Chevy, GMC, Duramax 6.6L, Kit

Part Number: UEM-XA7235-10K2

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KIT-SBC 383 3.750/4.030

Part Number: MAN-290030R

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Estimated Ship Date: Nov 10, 2025 if ordered today

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KIT-SBC 383 3.750/4.030

Part Number: MAN-290030RH

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Estimated Ship Date: Nov 10, 2025 if ordered today

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ROTATING ASSEMBLY KIT-SBC 383 3.750/4.030

Part Number: MAN-290130R

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Estimated Ship Date: Nov 10, 2025 if ordered today

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ROTATING ASSEMBLY KIT-SBC 383 3.750/4.030

Part Number: MAN-290130RH

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ROTATING ASSEMBLY KIT-SBC 383 3.750/4.035

Part Number: MAN-290935R

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ROTATING ASSEMBLY KIT-SBC 383 3.750/4.035

Part Number: MAN-290935RH

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ROTATING ASSEMBLY KIT-SBC 383 3.750/4.040

Part Number: MAN-290940R

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ROTATING ASSEMBLY KIT-SBC 383 3.750/4.040

Part Number: MAN-290940RH

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Estimated Ship Date: Nov 10, 2025 if ordered today

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4340 Forged Pro Series

Part Number: SCA-435032-2

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Estimated Ship Date: Dec 3, 2025 if ordered today

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Cylinder Heads, Aluminum, Assembled, 119cc Chamber, 320cc Intake Runner, Chevy, Big Block, Pair

Part Number: PMX-2214

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Oct 27, 2025 if ordered today

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Cylinder Heads, Aluminum, Assembled, 119cc Chamber, 320cc Intake Runner, Chevy, Big Block, Pair

Part Number: PMX-2216

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Estimated Ship Date: Nov 3, 2025 if ordered today

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Cylinder Heads, Freedom Series Big Block Chevy Heads, Assembled, Aluminum, 119cc Chamber, 360cc Intake, Angle Plug, Chevrolet, Big Block, Pair

Part Number: PMX-2256

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Estimated Ship Date: Nov 3, 2025 if ordered today

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