Engine Kits & Rotating Assemblies

Engine Rotating Assembly, Street/Strip, Cast Crank, Hypereutectic Piston, I-Beam Rod, Chevy, Small Block, Kit

Part Number: ESP-B13005E040

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Estimated Ship Date: Monday 7/21/2025

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Pro LS Piston and Rod Kit, 325 Cid, 3.780 bore, Standard 3.622 stroke, 6.098 rod, 2cc dome, 10.9:1 @ 61cc, 10.3:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR367802

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Estimated Ship Date: Monday 7/21/2025

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Engine Rotating Assembly, Street, Cast Crank, Hypereutectic Pistons, I-Beam Rods, Chevy, Small Block, Kit

Part Number: ESP-B15404E040

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Estimated Ship Date: Monday 7/21/2025

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Engine Rotating Assembly, Street/Strip, Cast Crank, Hypereutectic Piston, I-Beam Rod, Chevy, Small Block, Kit

Part Number: ESP-B13005E060

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/21/2025

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Pro LS Piston and Rod Kit, 326 Cid, 3.785 bore, Standard 3.622 stroke, 6.125 rod, 2cc dome, 10.9:1 @ 61cc, 10.4:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR36L7852

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Estimated Ship Date: Monday 7/21/2025

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Pro LS 4340 Piston and Rod Kit, 365 Cid., 4.005 bore, 3.622 stroke, 6.098 rod, 12cc dish, 9.6:1 @ 65cc, 9.2:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR3600512

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Estimated Ship Date: Monday 7/21/2025

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Rotating Assembly, Street/Strip, Cast Steel Crankshaft, Hypereutectic Flat Pistons, 1 pc/2 pc Seal, Ford, 306

Part Number: ESP-B16002LA030

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Estimated Ship Date: Monday 7/21/2025

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Pro LS 4340 Piston and Rod Kit, 410 Cid., 4.040 bore, 4.000 stroke, 6.125 rod, 8cc dish, 11.2:1 @ 65cc, 10.6:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR400408

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Estimated Ship Date: Monday 7/21/2025

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Pro LS 4340 Piston and Rod Kit, 408 Cid., 4.030 bore, 4.000 stroke, 6.125 rod, 20cc dish, 9.8:1 @ 65cc, 9.4:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR4003020

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Estimated Ship Date: Monday 7/21/2025

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Pro LS 4340 Piston and Rod Kit, 364 Cid., 4.000 bore, 3.622 stroke, 6.125 rod, 12cc Dish, 9.6:1 @ 65cc, 9.2:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR36L00012

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Estimated Ship Date: Monday 7/21/2025

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Pro LS 4340 Piston and Rod Kit, 416 Cid., 4.070 bore, 4.000 stroke, 6.125 rod, 6cc dish, 11.5:1 @ 65cc, 10.9:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR400706

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Estimated Ship Date: Monday 7/21/2025

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Pro LS Piston and Rod Kit, 365 Cid., 4.005 bore, 3.622 stroke, 6.098 rod, 2cc Flat Top, 10.8:1 @ 65cc, 10.2:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR360052

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 7/21/2025

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BOTTOM END KIT Polaris

Part Number: HRI-HR00117

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Estimated Ship Date: Aug 4, 2025 if ordered today

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BOTTOM END KIT Polaris

Part Number: HRI-HR00114

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Estimated Ship Date: Aug 4, 2025 if ordered today

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Cylinder Kit, Forged Piston, 5.00mm Oversize Bore, Polaris, 10.60 to 1 Compression Ratio, Kit

Part Number: CLW-61001-K01

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Estimated Ship Date: Aug 11, 2025 if ordered today

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BOTTOM END KIT Polaris

Part Number: HRI-HR00110

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Estimated Ship Date: Monday 7/21/2025

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Pro LS Piston and Rod Kit, 371 Cid., 4.040 bore, 3.622 stroke, 6.098 rod, 2cc Flat Top, 10.9:1 @ 65cc, 10.3:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR360402

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Estimated Ship Date: Monday 7/21/2025

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Pro LS Piston and Rod Kit, 332 Cid., 3.820 bore, Standard 3.622 stroke, 6.098 rod, 2cc dome, 11:1 @ 61cc, 10.5:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR368202

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Estimated Ship Date: Monday 7/21/2025

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Pro LS 4340 Piston and Rod Kit, 378 Cid., 4.075 bore, 3.622 stroke, 6.125 rod, 12cc dish, 9.9:1 @ 65cc, 9.4:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR36L08012

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Estimated Ship Date: Monday 7/21/2025

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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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Estimated Ship Date: Monday 7/21/2025

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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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Estimated Ship Date: Monday 7/21/2025

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Pro LS 4340 Piston and Rod Kit, 347 Cid., 3.903 bore, 3.622 stroke, 6.125 rod, 7cc dish, 9.7:1 @ 65cc, 9.4:1 @ 68cc, File-Fit Rings

Part Number: SUM-PR36L9037

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/21/2025

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Pro LS 4340 Piston and Rod Kit, 417 Cid., 4.075 bore, 4.000 stroke, 6.125 rod, 6cc dish, 11.5:1 @ 65cc, 11:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR400756

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Estimated Ship Date: Monday 7/21/2025

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Pro LS 4340 Piston and Rod Kit, 364 Cid., 3.810 bore, 4.000 stroke, 6.125 rod, 12cc dish, 10:2 @ 61cc, 9.7:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR4081012

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Estimated Ship Date: Monday 7/21/2025

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Pro LS 4340 Piston and Rod Kit, 367 Cid., 3.820 bore, 4.000 stroke, 6.125 rod, 5cc dish, 11:1 @ 61cc, 10.5:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR408205

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Estimated Ship Date: Monday 7/21/2025

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