Engines & Engine Parts

Pro LS 4340 Piston and Rod Kit, 346 Cid., 3.898 bore, 3.622 stroke, 6.098 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings

Part Number: SUM-PR368983

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Piston Rings, Plasma-moly, 4.030 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR369030

4.67 out of 5 stars ( 6 )

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Pro LS 4340 Rotating Assembly, 410 Cid., 4.040 bore, 4.000 stroke, 58x, 6.125 rod, 8cc dish, 11.2:1 @ 65cc, 10.6:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R58400408

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Piston Rings, Plasma-moly, 4.155 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR0690-35

5.0 out of 5 stars ( 1 )

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Forged Pro pistons for SB Chevy 400 Long Rod, 4.155 bore, 1.125 C.H., 3.75 in. stroke, 6 in. rod, 12cc Dish, 10.5@64cc, 10.2@67cc, 9.8@72cc.

Part Number: SUM-SBC400030L

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Main Bearings, HP-Series, Standard Size, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: KGB-MB557HP

4.33 out of 5 stars ( 6 )

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Piston Wrist Pin, Steel, 0.927 in. Diameter, 2.250 in. Length, 0.200 in. Wall Thickness, Each

Part Number: WIS-S718

5.0 out of 5 stars ( 3 )

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Engine Assembly, Short Block, Chevy, Small Block LS, 408, Each

Part Number: HPE-SP26

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Estimated Ship Date: Feb 16, 2026 if ordered today

• Core Charge $410.00
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Pro LS Rotating Assembly, 326 Cid, 3.785 bore, Standard 3.622 stroke, 24X, 6.125 rod, 2cc dome, 10.9:1 @ 61cc, 10.4:1 @ 65cc, File-Fit Ring, H Bearing

Part Number: SUM-R2436L7852

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Pro LS 4340 Rotating Assembly, 383 Cid., 3.903 bore, 4.000 stroke, 24X, 6.125 rod, 16cc dish, 9.7:1 @ 65cc, 9.4:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R244090316

3.5 out of 5 stars ( 2 )

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Pistons, Dish, Competition Series, Forged Aluminum, 4.070 in. Bore, -11.00cc Head Volume, Chevy, LS, Set of 8

Part Number: DPP-11589-R1-8

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Pro LS Rotating Assembly, 325 Cid, 3.780 bore, Standard 3.622 stroke, 58x, 6.098 rod, 2cc dome, 10.9:1 @ 61cc, 10.3:1 @ 65cc, File-Fit Ring, H Bearing

Part Number: SUM-R58367802

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Pro LS Rotating Assembly, 364 Cid., 4.000 bore, 3.622 stroke, 58x, 6.098 rod, 2cc Flat Top, 10.7:1 @ 65cc, 10.4:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R58360002

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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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Main Bearings, HP Series, 1/2 Groove, Standard Size, Bi Metal, Chevrolet, 5.7L, Set of 5

Part Number: KGB-MB5013HPSTDX

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Forged Pro pistons BB Chevy 540, 4.5 bore, 1.120 C.H., 4.25 in. stroke, 6.535 rod, 8cc Dome 10.6@110cc, 10.2@114cc, 10:1@119cc.

Part Number: SUM-BBC540STD8L

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Pistons, Flat Top, Competition Series, Forged Aluminum, 4.070 in. Bore, -2.00cc Head Volume, Chevy, LS, Set of 8

Part Number: DPP-11546-R1-8

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Piston Rings, Steel, 4.500 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CS9190-255

5.0 out of 5 stars ( 1 )

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Pro LS 4340 Piston and Rod Kit, 377 Cid., 4.075 bore, 3.622 stroke, 6.125 rod, 2cc dome, 11.6:1 @ 65cc, 10.9:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR36L0752

5.0 out of 5 stars ( 1 )

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Pistons, Dish, Competition Series, Forged Aluminum, 4.030 in. Bore, -15.00cc Head Volume, Chevy, LS, Set of 8

Part Number: DPP-11521-R1-8

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Cylinder Head, High Port® 225, CNC Competition Ported, Bare, 70cc CNC Chambers, Small Ford, Each

Part Number: TFS-5171B012-C01

5.0 out of 5 stars ( 1 )

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Pistons, Rings, SX-Series, Forged, 5.00cc Flat, 4.065 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K1830-4065

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5.7 Pro Hemi Truck 2 Hydraulic Roller Cam, 212/218 Duration @.050, 111.5 LSA + 3.5 adv, .539/.539 Lift No Springs Required, 1800-6200 Range, Each

Part Number: SUM-5722

5.0 out of 5 stars ( 1 )

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Connecting Rods, 4340, H-Beam, 12-Point, Cap Screw, 6.000 in. Length, Chevy, Small Block, Set of 8

Part Number: SCA-6600021A

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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• $75.00 Summit Bucks

Connecting Rods, 4340, H-Beam, 12-Point, Cap Screw, 6.385 in. Length, Chevy, Big Block, Set of 8

Part Number: SCA-6638522

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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• $75.00 Summit Bucks