Engine Kits & Rotating Assemblies

Pro LS Rotating Assembly, 332 Cid., 3.820 bore, Standard 3.622 stroke, 58x, 6.125 rod, 2cc dome, 11:1 @ 61cc, 10.5:1 @ 65cc, File-Fit Rings, H Bearing

Part Number: SUM-R5836L8202

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, 2cc dome, 11.6:1 @ 65cc, 10.9:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R2436L0702

Not Yet Reviewed

Estimated Ship Date: Oct 30, 2026

Pro LS 4340 Rotating Assembly, 367 Cid., 3.820 bore, 4.000 stroke, 58x, 6.125 rod, 5cc dish, 11:1 @ 61cc, 10.5:1 @ 65cc, File-Fit Rings, H Bearings

Part Number: SUM-R58408205

Not Yet Reviewed

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

PRO STREET ASSEMBLY CHEV 409

Part Number: ESP-618004372

Not Yet Reviewed

Estimated Ship Date: Dec 10, 2026

Forged Rotating Assembly, 6.4L/403Cid, 4.005 Bore, 4.000 Stroke, 6.125 in. Rod, Piston -1cc Dome, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60084

Not Yet Reviewed

Estimated Ship Date: Today

Forged Rotating Assembly, 6.7L/408Cid, 4.030 Bore, 4.000 Stroke, 6.125 in. Rod, Piston 20cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60098

Not Yet Reviewed

Estimated Ship Date: Nov 27, 2026

Forged Rotating Assembly, 7.1L/434, 4.155 Bore, 4.000 Stroke, 6.000 in. Rod, Piston 18cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RASBC42713

Not Yet Reviewed

Estimated Ship Date: Nov 9, 2026 if shipped by air

Forged Rotating Assembly, 6.6L/402Cid, 4.000 Bore, 4.000 Stroke, 6.125 in. Rod, Piston 20cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60092

Not Yet Reviewed

Estimated Ship Date: Today

Forged Rotating Assembly, 6.7L/408Cid, 4.030 Bore, 4.000 Stroke, 6.125 in. Rod, Piston 9cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60077

Not Yet Reviewed

Estimated Ship Date: Today

Forged Rotating Assembly, 7.0L/427, 4.125 Bore, 4.000 Stroke, 6.000 in. Rod, Piston 18cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RASBC42704

Not Yet Reviewed

Estimated Ship Date: Nov 9, 2026 if shipped by air

Forged Rotating Assembly, 6.7L/408Cid, 4.030 Bore, 4.000 Stroke, 6.125 in. Rod, Piston 20cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60073

Not Yet Reviewed

Estimated Ship Date: Nov 27, 2026

Forged Rotating Assembly, 10.4L/632, 4.600 Bore, 4.750 Stroke, 6.700 in. Rod, Piston -8cc Dome, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RABBC632001

Not Yet Reviewed

Estimated Ship Date: Nov 27, 2026

Forged Rotating Assembly, 7.0L/427, 4.125 Bore, 4.000 Stroke, 6.000 in. Rod, Piston 18cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RASBC42705

Not Yet Reviewed

Estimated Ship Date: Nov 9, 2026 if shipped by air

Forged Rotating Assembly, 7.1L/434, 4.155 Bore, 4.000 Stroke, 6.000 in. Rod, Piston 18cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RASBC42714

Not Yet Reviewed

Estimated Ship Date: Nov 9, 2026 if shipped by air

Forged Rotating Assembly, 7.1L/434, 4.155 Bore, 4.000 Stroke, 6.000 in. Rod, Piston 18cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RASBC42715

Not Yet Reviewed

Estimated Ship Date: Nov 9, 2026 if shipped by air

Forged Rotating Assembly, 6.4L/396Cid, 4.040 Bore, 3.858 Stroke, 6.125 in. Rod, Piston 16cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60054

Not Yet Reviewed

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

Forged Rotating Assembly, 6.6L/402Cid, 4.000 Bore, 4.000 Stroke, 6.125 in. Rod, Piston 9cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60104

Not Yet Reviewed

Estimated Ship Date: Nov 27, 2026

Forged Rotating Assembly, 6.4L/403Cid, 4.005 Bore, 4.000 Stroke, 6.125 in. Rod, Piston 20cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60093

Not Yet Reviewed

Estimated Ship Date: Today

Forged Rotating Assembly, 6.7L/408Cid, 4.030 Bore, 4.000 Stroke, 6.125 in. Rod, Piston -1cc Dome, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60089

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-RALS60062

Not Yet Reviewed

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

Forged Rotating Assembly, 6.7L/410Cid, 4.040 Bore, 4.000 Stroke, 6.125 in. Rod, Piston 9cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60107

Not Yet Reviewed

Estimated Ship Date: Nov 27, 2026

Forged Rotating Assembly, 6.4L/403Cid, 4.005 Bore, 4.000 Stroke, 6.125 in. Rod, Piston 9cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60105

Not Yet Reviewed

Estimated Ship Date: Nov 27, 2026

Forged Rotating Assembly, 6.4L/394Cid, 4.030 Bore, 3.858 Stroke, 6.125 in. Rod, Piston 16cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60053

Not Yet Reviewed

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

Forged Rotating Assembly, 6.4L/403Cid, 4.005 Bore, 4.000 Stroke, 6.125 in. Rod, Piston 9cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60101

Not Yet Reviewed

Estimated Ship Date: Today

Forged Rotating Assembly, 6.0L/365Cid, 4.005 Bore, 3.622 Stroke, 6.098 in. Rod, Piston 12cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60006

Not Yet Reviewed

Estimated Ship Date: Nov 27, 2026