These high-compression pistons are compatible with most aftermarket 23º heads and are ideal for drag racing and circle track applications. Valve reliefs will accommodate oversized valves and long duration, tight lobe separation cams. Precision CNC ring grooves are designed for 1/16, 1/16, 3/16 rings. Will not fit Pro Topline or Brodix 11X cylinder heads. Bore: 4.030 Stroke: 3.500 Rod: 6.000 Deck: 9.000 Note: fits 3.480 and 3.500 stroke

Includes:
Pin #927-2750-15-51S (130g)
Double Spiro locks #927-042-CS
Contact reduction grooves
Double pin oilers.
Price per piston.