Engine Kits & Rotating Assemblies

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

Not Yet Reviewed

Estimated Ship Date: Today

Engine Rotating Assembly, Forged 4340 Crank, Forged Pistons, H-Beam Rods, Ford, 557 Big Block, Kit

Part Number: ESP-15013080

Not Yet Reviewed

Estimated Ship Date: Sep 22, 2025 if ordered today

• Free Shipping
• Special Order

ROTATING ASSEMBLY

Part Number: ESP-12147030

Not Yet Reviewed

Estimated Ship Date: Aug 22, 2025 if ordered today

• Free Shipping
• Special Order

Engine Rotating Assembly, Competition, Forged Crank, Forged Pistons, H-Beam Rods, Chevy, Big Block, Kit

Part Number: ESP-11011060

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Aug 22, 2025 if ordered today

• Free Shipping
• Special Order

Pro LS 4340 Rotating Assembly, 347 Cid., 3.903 bore, 3.622 stroke, 58x, 6.098 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R58369033

Not Yet Reviewed

Estimated Ship Date: Today

Pro LS 4340 Rotating Assembly, 376 Cid., 4.065 bore, 3.622 stroke, 58x, 6.125 rod, 12cc dish, 9.9:1 @ 65cc, 9.4:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R5836L06512

Not Yet Reviewed

Estimated Ship Date: Today

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

Not Yet Reviewed

Estimated Ship Date: Today

Pro LS Rotating Assembly, 332 Cid., 3.820 bore, Standard 3.622 stroke, 58x, 6.098 rod, 7cc dish, 9.9:1 @ 61cc, 9.4:1 @ 65cc, File-Fit Rings, H Bearing

Part Number: SUM-R58368207

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

• Special Order

Pro LS Rotating Assembly, 365 Cid., 4.005 bore, 3.622 stroke, 58x, 6.125 rod, 2cc Flat Top, 10.8:1 @ 65cc, 10.2:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R5836L0052

Not Yet Reviewed

Estimated Ship Date: Today

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

Not Yet Reviewed

Estimated Ship Date: Today

Engine Rotating Assembly, Forged Crank, Forged Pistons, H-Beam Rods, Chevy, Big Block, Kit

Part Number: SCA-1-42355

Not Yet Reviewed

Estimated Ship Date: Sep 15, 2025 if ordered today

• Free Shipping
• Special Order

Engine Rotating Assembly, Balanced, Forged Crank, Forged Pistons, H-Beam Rods, Ford, Modular V8, Kit

Part Number: SCA-1-47803BI

Not Yet Reviewed

Estimated Ship Date: Sep 15, 2025 if ordered today

• Free Shipping
• Special Order

COMPETITION ASSEMBLY CHEV LS 4.8/5.3

Part Number: ESP-127623810

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

• Free Shipping
• Special Order

Rotating Assembly, Competition, Forged 4340 Crankshaft, Forged Flat Pistons, 1-Piece Seal, Chevy, 408, Kit

Part Number: ESP-129384030

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

• Free Shipping
• Special Order

Rotating Assembly, Competition, Forged 4340 Crankshaft, Forged Flat Pistons, 1-Piece Seal, Chevy, 383, Kit

Part Number: ESP-129123905

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

• Free Shipping
• Special Order

Engine Rotating Assembly, Competition, Forged Crank, Forged Pistons, H-Beam Rods, Ford, Small Block, Kit

Part Number: ESP-B14003040

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

• Free Shipping
• Special Order

Engine Rotating Assembly, Competition, Forged Crank, Forged Pistons, H-Beam Rods, Ford, Small Block, Kit

Part Number: ESP-B14003060

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Aug 25, 2025 if ordered today

• Free Shipping
• Special Order

Engine Rotating Assembly, Competition, Forged Crank, Forged Pistons, H-Beam Rods, Chevy, Small Block, Kit

Part Number: ESP-B12503040

Not Yet Reviewed

Estimated Ship Date: Aug 22, 2025 if ordered today

• Free Shipping
• Special Order

Engine Rotating Assembly, Forged Crank, Forged Pistons, I-Beam Rods, Mopar, Small Block, Kit

Part Number: SCA-1-48033BI

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Sep 15, 2025 if ordered today

• Free Shipping
• Special Order

Engine Rotating Assembly, Pro Street, Forged 4340 Crank, Forged Pistons, I-Beam Rods, Pontiac, Big Block, 400, Kit

Part Number: ESP-615014185

Not Yet Reviewed

Estimated Ship Date: Aug 22, 2025 if ordered today

• Free Shipping
• Special Order

Engine Rotating Assembly, Forged Crank, Forged Pistons, I-Beam Rods, Mopar, Small Block, Kit

Part Number: SCA-1-48013BI

Not Yet Reviewed

Estimated Ship Date: Sep 15, 2025 if ordered today

• Free Shipping
• Special Order

COMPETITION ASSEMBLY CHEV LS2

Part Number: ESP-127744010

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

• Free Shipping
• Special Order

ROTATING ASSEMBLY

Part Number: SCA-1-46588BI

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

COMPETITION ASSEMBLY CHEV 454

Part Number: ESP-11421L060

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

• Free Shipping
• Special Order

Rotating Assembly 355 CHEVY

Part Number: SCA-1-41630BIE

Not Yet Reviewed

Estimated Ship Date: Sep 15, 2025 if ordered today

• Free Shipping
• Special Order