Free shipping on eligible orders of $100 or more. Oversized and freight items excluded.

Shop parts / Wiseco / New

Wiseco Chevy Small Block 4.040in Bore 1.550in CH -15.00 CC Piston Set

Wiseco · New

Wiseco Chevy Small Block 4.040in Bore 1.550in CH -15.00 CC Piston Set

MPN K431A4 · Store SKU wisK431A4

$1,800.00
CHECK AVAILABILITY0 in supplier warehouses. Ask JuiceBuilt about availability.

Supplier stock checked 11/7/2026, 9:59:42 AM UTC. Adding a part does not reserve it.

30-day returns for unopened, unused new parts

Request a return within 30 calendar days after delivery. New parts must be unopened and unused.

Shipping & returns ↗This policy does not limit rights required by law.

Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.

Product details

Professional Series forged racing pistons from Wiseco are no-expense-spared pistons designed for the serious racers and builders. Packed full of custom-level performance and durability features and provided with premium rings, Professional Series pistons are designed and built for use in heavy to severe duty race builds. Remove your limits with Wiseco's Professional Series. Wiseco Chevrolet Small Block Piston Set, 4.040 in. Bore, 1.550 in. Compression Height, 0.927 in. Pin Diameter, Professional, Set of 8. Piston Set, Chevrolet, Small Block, 4.040 in. Bore, Professional, Set of 8

Manufacturer fitment & guides

Check K431A4 against the manufacturer’s application information below.

Part-specific notes

  • Not CARB approved. Destination and intended-use restrictions must be checked before sale.
  • Emissions acknowledgement required before purchase.
  • California Proposition 65: Y
More from Wiseco ↗See the JuiceBuilt workshop ↗

YOUR NEXT MOVE

Your build.