Engine Kits & Rotating Assemblies

Forged Rotating Assembly, 6.0L/364Cid, 4.000 Bore, 3.622 Stroke, 6.098 in. Rod, Piston -8cc Dome, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60021

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-RALS60072

Not Yet Reviewed

Estimated Ship Date: Nov 27, 2026

Forged Rotating Assembly, 6.0L/371Cid, 4.040 Bore, 3.622 Stroke, 6.098 in. Rod, Piston 3cc, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60041

Not Yet Reviewed

Estimated Ship Date: Nov 27, 2026

Pro LS 4340 Rotating Assembly, 376 Cid., 4.065 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-R2436L0652

Not Yet Reviewed

Estimated Ship Date: Oct 30, 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-RALS60036

Not Yet Reviewed

Estimated Ship Date: Today

Pro LS 4340 Rotating Assembly, 364 Cid., 4.000 bore, 3.622 stroke, 24X, 6.125 rod,12cc Dish, 9.6:1 @ 65cc, 9.2:1 @ 70cc, File-Fit ring, H Bearings

Part Number: SUM-R2436L00012

Not Yet Reviewed

Estimated Ship Date: Oct 30, 2026

Pro LS Rotating Assembly, 371 Cid., 4.040 bore, 3.622 stroke, 24X, 6.098 rod, 2cc Flat Top, 10.9:1 @ 65cc, 10.3:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R24360402

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-RALS60027

Not Yet Reviewed

Estimated Ship Date: Today

Forged Rotating Assembly, 6.7L.406, 4.155 Bore, 3.750 Stroke, 5.700 in. Rod, Piston 12cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RASBC40032

Not Yet Reviewed

Estimated Ship Date: Nov 27, 2026

Forged Rotating Assembly, 6.7L.406, 4.155 Bore, 3.750 Stroke, 6.000 in. Rod, Piston 12cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RASBC40014

Not Yet Reviewed

Estimated Ship Date: Nov 27, 2026

Forged Rotating Assembly, 6.3L/388Cid, 4.000 Bore, 3.858 Stroke, 6.125 in. Rod, Piston 3cc, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60063

Not Yet Reviewed

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

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-RALS60057

Not Yet Reviewed

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

Pro LS 4340 Rotating Assembly, 365 Cid., 4.005 bore, 3.622 stroke, 24X, 6.125 rod, 12cc Dish, 9.6:1 @ 65cc, 9.2:1 @ 70cc, File-Fit rings, H Bearings

Part Number: SUM-R2436L00512

Not Yet Reviewed

Estimated Ship Date: Oct 30, 2026

Pro LS 4340 Rotating Assembly, 364 Cid., 3.810 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-R58408105

Not Yet Reviewed

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

Pro LS 4340 Rotating Assembly, 365 Cid., 4.005 bore, 3.622 stroke, 58x, 6.125 rod, 12cc Dish, 9.6:1 @ 65cc, 9.2:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R5836L00512

Not Yet Reviewed

Estimated Ship Date: Oct 30, 2026

Pro LS 4340 Rotating Assembly, 417 Cid., 4.080 bore, 4.000 stroke, 24X, 6.125 rod, 6cc dish, 11.6:1 @ 65cc, 11:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R24400806

Not Yet Reviewed

Estimated Ship Date: Oct 30, 2026

Pro LS 4340 Rotating Assembly, 377 Cid., 4.075 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-R2436L0752

Not Yet Reviewed

Estimated Ship Date: Oct 30, 2026

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-RALS60078

Not Yet Reviewed

Estimated Ship Date: Today

Forged Rotating Assembly, 6.0L/364Cid, 4.000 Bore, 3.622 Stroke, 6.098 in. Rod, Piston 3cc, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60009

Not Yet Reviewed

Estimated Ship Date: Today

Forged Rotating Assembly, 6.0L/365Cid, 4.005 Bore, 3.622 Stroke, 6.098 in. Rod, Piston -8cc Dome, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60043

Not Yet Reviewed

Estimated Ship Date: Today

Forged Rotating Assembly, 6.0L/364Cid, 4.000 Bore, 3.622 Stroke, 6.098 in. Rod, Piston 3cc, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60017

Not Yet Reviewed

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

Forged Rotating Assembly, 6.7L/410Cid, 4.040 Bore, 4.000 Stroke, 6.125 in. Rod, Piston 20cc Dish, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60095

Not Yet Reviewed

Estimated Ship Date: Today

Forged Rotating Assembly, 6.0L/364Cid, 4.000 Bore, 3.622 Stroke, 6.098 in. Rod, Piston 3cc, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60013

Not Yet Reviewed

Estimated Ship Date: Nov 27, 2026

Forged Rotating Assembly, 6.0L/364Cid, 4.000 Bore, 3.622 Stroke, 6.098 in. Rod, Piston 3cc, Steel Rings+Race Bearings -Coated/GP Rings opt..

Part Number: SUM-RALS60034

Not Yet Reviewed

Estimated Ship Date: Today

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-RALS60103

Not Yet Reviewed

Estimated Ship Date: Today