Summit Racing Performance, Restoration & Replacement Parts & Tools

Pro LS 4340 Rotating Assembly, 410 Cid., 4.040 bore, 4.000 stroke, 24X, 6.125 rod, 20cc dish, 9.8:1 @ 65cc, 9.4:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R244004020

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

• Special Order

Pro LS 4340 Rotating Assembly, 403 Cid., 4.005 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-R584000520

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

• Special Order

Pro LS 4340 Rotating Assembly, 410 Cid., 4.040 bore, 4.000 stroke, 58x, 6.125 rod, 20cc dish, 9.8:1 @ 65cc, 9.4:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R584004020

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

• Special Order

Pro LS 4340 Rotating Assembly, 417 Cid., 4.080 bore, 4.000 stroke, 58x, 6.125 rod, 21cc dish, 9.9:1 @ 65cc, 9.5:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R584008021

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-299S274030-2

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-110S273S03-5

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-326S45810-2P

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-299S273898-3

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 2, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-326S434065-2

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-299S27407012

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-326S43780-2F

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock.

Part Number: SUM-110S27378012

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-110S273785-5

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-110S27378512

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-110S27381012

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-110S273820-5

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-110S27382012

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-110S27408021

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-110S274125-4

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-110S27412523

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-299S273820-2

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-299S273820-7

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-299S27404012

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-326S43404012

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-326S43820-7F

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

• Special Order