Engines & Components

Pro LS 4340 Piston and Rod Kit, 383 Cid., 3.903 bore, 4.000 stroke, 6.125 rod, 5cc dish, 10.9:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings

Part Number: SUM-PR409035

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Pro LS 4340 Piston and Rod Kit, 347 Cid., 3.903 bore, 3.622 stroke, 6.125 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings

Part Number: SUM-PR36L9033

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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

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Pro LS 4340 Piston and Rod Kit, 402 Cid., 4.000 bore, 4.000 stroke, 6.125 rod, 20cc dish, 9.7:1 @ 65cc, 9.3:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR4000020

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Pro LS 4340 Piston and Rod Kit, 415 Cid., 4.065 bore, 4.000 stroke, 6.125 rod, 21cc dish, 9.9:1 @ 65cc, 9.5:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR4006521

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Pro LS 4340 Piston and Rod Kit, 416 Cid., 4.070 bore, 4.000 stroke, 6.125 rod, 21cc dish, 9.9:1 @ 65cc, 9.5:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR4007021

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SINGLE PISTON WITH RINGS

Part Number: MAH-S1700

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Estimated Ship Date: Sep 23, 2025 if ordered today

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2.953" stroke, internal balance, billet 4340 steel, Subaru EJ257

Part Number: ESP-3EJ229535137

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Estimated Ship Date: Sep 22, 2025 if ordered today

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crank shaft,4340 Billet Crank Subaru EJ20/25 83mm stroker

Part Number: ESP-3EJ232685137

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Estimated Ship Date: Sep 22, 2025 if ordered today

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crank shaft,4340 Billet Crank Honda F20C 96.5mm stroker

Part Number: ESP-3F2037995893

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Estimated Ship Date: Sep 22, 2025 if ordered today

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4340 CRANK FORD 460 INT BAL 4.625

Part Number: ESP-446046252200

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Estimated Ship Date: Sep 22, 2025 if ordered today

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CRANK

Part Number: ESP-450246256600

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Estimated Ship Date: Sep 22, 2025 if ordered today

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6.800" 4th Generation H-Beam, Ford 302 stroker, 7/16" ARP 2000 bolts

Part Number: ESP-CRS5400S4D

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Estimated Ship Date: Sep 22, 2025 if ordered today

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6.125" 4th Generation H-Beam, Chevrolet Gen III "LS", 7/16" ARP 2000 bolts

Part Number: ESP-CRS6125O4D

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Estimated Ship Date: Sep 22, 2025 if ordered today

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forged crankshaft

Part Number: ESP-434643756460

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.500 in. Stroke, Chrysler, 413, 426, 440, Each

Part Number: ESP-444245007100

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.625 in. Stroke, Chrysler, 413, 426, 440, Each

Part Number: ESP-444246257100

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Crankshaft, Internal Balance, Forged 4340 Steel, 3.750 in. Stroke, Ford, 4.6L, Each

Part Number: ESP-428137505950

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Estimated Ship Date: Sep 22, 2025 if ordered today

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4340 CRANK FORD COYOTE

Part Number: ESP-428236505933

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Estimated Ship Date: Sep 22, 2025 if ordered today

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4340 CRANK FORD COYOTE 3.750" 2.00 ROD

Part Number: ESP-428237502000

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Estimated Ship Date: Sep 22, 2025 if ordered today

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4340 CRANK CHRY 360 4.125" STROKE

Part Number: ESP-436041256200

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Estimated Ship Date: Sep 22, 2025 if ordered today

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4340 CRANK CHRY 360 4.250" STROKE

Part Number: ESP-436042506200

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Estimated Ship Date: Sep 22, 2025 if ordered today

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4340 CRANK CHRY LM HEMI 32T RELUCTOR

Part Number: ESP-439240806125

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Estimated Ship Date: Sep 22, 2025 if ordered today

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4.250" stroke, internal balance, forged 4340 steel, Chevrolet Gen III "LS"

Part Number: ESP-434742506560

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Estimated Ship Date: Sep 22, 2025 if ordered today

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6.800" 4th Generation H-Beam, Chevrolet big block, 7/16" ARP 2000 bolts

Part Number: ESP-CRS68004D

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Estimated Ship Date: Sep 22, 2025 if ordered today

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