Engines & Engine Parts

Pro LS 4340 Rotating Assembly, 403 Cid., 4.005 bore, 4.000 stroke, 58x, 6.125 rod, 8cc dish, 11:1 @ 65cc, 10.4:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R58400058

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Pro LS 4340 Rotating Assembly, 367 Cid., 3.820 bore, 4.000 stroke, 58x, 6.125 rod, 12cc dish, 10:2 @ 61cc, 9.8:1 @ 65cc, File-Fit Rings, H Bearings

Part Number: SUM-R584082012

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Pro LS Rotating Assembly, 364 Cid., 4.000 bore, 3.622 stroke, 58x, 6.125 rod, 2cc Flat Top, 10.7:1 @ 65cc, 10.4:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R5836L0002

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Pro LS Piston and Rod Kit, 332 Cid., 3.820 bore, Standard 3.622 stroke, 6.125 rod, 2cc dome, 11:1 @ 61cc, 10.5:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR36L8202

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Pro LS Rotating Assembly, 330 Cid., 3.810 bore, Standard 3.622 stroke, 58x, 6.098 rod, 7cc dish, 9.8:1 @ 61cc, 9.4:1 @ 65cc, File-Fit Rings, H Bearing

Part Number: SUM-R58368107

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Pro LS Rotating Assembly, 365 Cid., 4.005 bore, 3.622 stroke, 24X, 6.125 rod, 2cc Flat Top, 10.8:1 @ 65cc, 10.2:1 @ 70cc, File-Fit rings, H Bearings

Part Number: SUM-R2436L0052

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Pro LS Piston and Rod Kit, 330 Cid., 3.810 bore, Standard 3.622 stroke, 6.125 rod, 7cc dish, 9.8:1 @ 61cc, 9.4:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR36L8107

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Connecting Rods, 4340, H-Beam, 12-Point, Cap Screw, 6.760 in. Length, Mopar V8, 440, 7.2L, Set of 8

Part Number: SCA-6676010

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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• $75.00 Summit Bucks

Connecting Rods, 4340, H-Beam, 12-Point, Cap Screw, 6.135 in. Length, Chevy, Big Block, Set of 8

Part Number: SCA-6613522

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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• $75.00 Summit Bucks

Pro LS Rotating Assembly, 325 Cid, 3.780 bore, Standard 3.622 stroke, 24X, 6.125 rod, 2cc dome, 10.9:1 @ 61cc, 10.3:1 @ 65cc, File-Fit Ring, H Bearing

Part Number: SUM-R2436L7802

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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 )

Estimated Ship Date: Tomorrow

Forged Pro pistons for 383 Stroker Chevy Long Rod, 4.030 bore, 1.125 C.H., 3.75 in. stroke, 6 in. rod, 9cc reverse dome 10.5@64cc, 10.1@67cc, 9.7@72cc

Part Number: SUM-SBC383030L

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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 )

Estimated Ship Date: Tomorrow

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Cylinder Head, High Port 240, Assembled, 67cc CNC Chambers, Ford, 289, 302, 351W, Each

Part Number: TFS-5171T016-C02

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 20, 2026 if ordered today

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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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Connecting Rods, 4340, H-Beam, 12-Point, Cap Screw, 5.700 in. Length, Chevy, Small Block, Set of 8

Part Number: SCA-6570021

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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• $75.00 Summit Bucks

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 )

Estimated Ship Date: Tomorrow

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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 )

Estimated Ship Date: Tomorrow

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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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 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 )

Estimated Ship Date: Tomorrow

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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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, 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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