Engine Rotating Assemblies & Rebuild Kits

Pro LS 4340 Rotating Assembly, 378 Cid., 4.080 bore, 3.622 stroke, 24X, 6.125 rod, 2cc dome, 11.6:1 @ 65cc, 11:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R2436L0802

Not Yet Reviewed

Estimated Ship Date: Today

KIT-SBC 383 3.750/4.030

Part Number: MAN-290030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 4, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Pro LS Rotating Assembly, 326 Cid., 3.785 bore, Standard 3.622 stroke, 58x, 6.125 rod, 7cc dish, 9.7:1 @ 61cc, 9.3:1 @ 65cc, File-Fit Rings, H Bearing

Part Number: SUM-R5836L7857

Not Yet Reviewed

Estimated Ship Date: Today

KIT-BBC 632 4.750/4.600 -3cc F

Part Number: MAN-28632HX

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

KIT-BBC 632 4.750/4.600 -3cc F

Part Number: MAN-28632H

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

ROTATING ASSEMBLY KIT-SBC 434 4.000/4.155

Part Number: MAN-290330H

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

ROTATING ASSEMBLY KIT-SBC 434 4.000/4.125

Part Number: MAN-290300R

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

ROTATING ASSEMBLY KIT-SBC 434 4.000/4.125

Part Number: MAN-290300H

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Pro LS 4340 Rotating Assembly, 378 Cid., 4.080 bore, 3.622 stroke, 58x, 6.125 rod, 2cc dome, 11.6:1 @ 65cc, 11:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R5836L0802

Not Yet Reviewed

Estimated Ship Date: Today

Pro LS Rotating Assembly, 371 Cid., 4.040 bore, 3.622 stroke, 58x, 6.098 rod, 2cc Flat Top, 10.9:1 @ 65cc, 10.3:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R58360402

Not Yet Reviewed

Estimated Ship Date: Today

KIT-SBC 383 3.750/4.030

Part Number: MAN-290030H

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

KIT-SBC 383 3.750/4.030

Part Number: MAN-290030R

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Pro LS 4340 Rotating Assembly, 378 Cid., 4.080 bore, 3.622 stroke, 24X, 6.125 rod, 12cc dish, 9.9:1 @ 65cc, 9.4:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R2436L08012

Not Yet Reviewed

Estimated Ship Date: Today

BBC 632 4.750 STROKE/4.600/-3cc

Part Number: MAN-28632

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

ROTATING ASSEMBLY KIT-SBC 383 3.750/4.040

Part Number: MAN-290940H

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

KIT-LS 402 4.000/4.005 18cc DI

Part Number: MAN-28402R

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

KIT-SBC 383 3.750/4.040

Part Number: MAN-290040

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

ROTATING ASSEMBLY KIT-SBC 383 3.750/4.030

Part Number: MAN-290040H

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

ROTATING ASSEMBLY KIT-SBC 383 3.750/4.040

Part Number: MAN-290040R

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

KIT-BBC 632 4.750/4.600 -3cc F

Part Number: MAN-28632RHX

Not Yet Reviewed

Estimated Ship Date: May 5, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

KIT-SBC 383 3.750/4.040

Part Number: MAN-290940

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Engine Rotating Assembly, Street/Strip, 4.310 in. Bore, Cast Crank, Forged Pistons, I-Beam Rods, Chevrolet, Big Block Mark IV, Kit

Part Number: ESP-B18022060

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Today

• Free Shipping

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

Part Number: ESP-B13005E030

4.43 out of 5 stars ( 7 )

Estimated Ship Date: Today

• Free Shipping

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

Part Number: ESP-B14003030

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

• Free Shipping

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

Part Number: ESP-B12011030

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Today

• Free Shipping