Engine Kits & Rotating Assemblies

Forged Rotating Assembly, 6.7L/410Cid, 4.040 Bore, 4.000 Stroke, 6.125 in. Rod, Piston -1cc Dome, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60086

Not Yet Reviewed

Estimated Ship Date: Today

Forged Rotating Assembly, 6.0L/370Cid, 4.030 Bore, 3.622 Stroke, 6.098 in. Rod, Piston -12cc Dome, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60050

Not Yet Reviewed

Estimated Ship Date: Nov 27, 2026

Pro LS 4340 Rotating Assembly, 371 Cid., 4.040 bore, 3.622 stroke, 24X, 6.098 rod, 12cc dish, 9.8:1 @ 65cc, 9.3:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R243604012

Not Yet Reviewed

Estimated Ship Date: Monday 10/26/2026 if shipped by air

Forged Rotating Assembly, 6.0L/371Cid, 4.040 Bore, 3.622 Stroke, 6.098 in. Rod, Piston 12cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60033

Not Yet Reviewed

Estimated Ship Date: Nov 27, 2026

Forged Rotating Assembly, 6.0L/370Cid, 4.030 Bore, 3.622 Stroke, 6.098 in. Rod, Piston 3cc, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60011

Not Yet Reviewed

Estimated Ship Date: Today

Forged Rotating Assembly, 6.0L/371Cid, 4.040 Bore, 3.622 Stroke, 6.098 in. Rod, Piston -8cc Dome, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60024

Not Yet Reviewed

Estimated Ship Date: Nov 27, 2026

ROTATING ASSEMBLY

Part Number: SCA-1-47726BI040

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2026

Forged Rotating Assembly, 6.3L/389Cid, 4.005 Bore, 3.858 Stroke, 6.125 in. Rod, Piston 3cc, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60064

Not Yet Reviewed

Estimated Ship Date: Dec 14, 2026 if shipped by air

Forged Rotating Assembly, 8.7L/532, 4.600 Bore, 4.000 Stroke, 6.535 in. Rod, Piston -8cc Dome, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RABBC502002

Not Yet Reviewed

Estimated Ship Date: Nov 27, 2026

Forged Rotating Assembly, 6.4L/396Cid, 4.040 Bore, 3.858 Stroke, 6.125 in. Rod, Piston 3cc, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60066

Not Yet Reviewed

Estimated Ship Date: Dec 14, 2026 if shipped by air

Forged Rotating Assembly, 8.8L/540, 4.500 Bore, 4.250 Stroke, 6.535 in. Rod, Piston -8cc Dome, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RABBC540027

Not Yet Reviewed

Estimated Ship Date: Nov 27, 2026

Forged Rotating Assembly, 9.5L/582, 4.600 Bore, 4.375 Stroke, 6.480 in. Rod, Piston -8cc Dome, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RABBC582001

Not Yet Reviewed

Estimated Ship Date: Nov 27, 2026

Pro LS Rotating Assembly, 332 Cid., 3.820 bore, Standard 3.622 stroke, 24X, 6.125 rod, 2cc dome, 11:1 @ 61cc, 10.5:1 @ 65cc, File-Fit Rings, H Bearing

Part Number: SUM-R2436L8202

Not Yet Reviewed

Estimated Ship Date: Oct 30, 2026

Pro LS Rotating Assembly, 371 Cid., 4.040 bore, 3.622 stroke, 24X, 6.125 rod, 2cc Flat Top, 10.9:1 @ 65cc, 10.3:1 @ 70cc, File-Fit rings, H Bearings

Part Number: SUM-R2436L0402

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 30, 2026

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: Oct 30, 2026

Pro LS 4340 Rotating Assembly, 402 Cid., 4.000 bore, 4.000 stroke, 58x, 6.125 rod, 20cc dish, 9.7:1 @ 65cc, 9.3:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R584000020

Not Yet Reviewed

Estimated Ship Date: Dec 7, 2026 if shipped by air

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: Oct 30, 2026

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: Oct 30, 2026

Pro LS Rotating Assembly, 326 Cid., 3.785 bore, Standard 3.622 stroke, 24X, 6.125 rod, 7cc dish, 9.7:1 @ 61cc, 9.3:1 @ 65cc, File-Fit Rings, H Bearing

Part Number: SUM-R2436L7857

Not Yet Reviewed

Estimated Ship Date: Oct 30, 2026

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

Not Yet Reviewed

Estimated Ship Date: Oct 30, 2026

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: Oct 30, 2026

Pro LS 4340 Rotating Assembly, 377 Cid., 4.070 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-R2436L07012

Not Yet Reviewed

Estimated Ship Date: Oct 30, 2026

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: Oct 30, 2026

ROTATING ASSEMBLY

Part Number: SCA-1-45310BE040

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2026

ROTATING ASSEMBLY

Part Number: SCA-198113BISTD

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2026