400 Gas Ported (GP) Dome 18º

The same design as the Small Block 18º dome pistons, but equipped with lateral gas ports and machined for our new Pro Steel rings with 1.2, 1.5, 3mm axial thickness and backcut radial widths. Will not fit Brodix 18x cylinder heads.

Includes:

  • Pin #927-2750-15-51S (130g)
  • Single Spiro locks #927-073-AS
  • Lateral Gas Ports
  • Double Pin Oilers
Part # Bore Stroke Rod Deck Head CC Comp. Ratio Comp. Height Crown Vol. Ring Set Head Type Series Stock Action
218595 4.125 4.000 6.000 9.000 58.0 14.5 1.000 2.50 J75008-4125-5 Dome JE Pistons Back Order
218595 4.125 4.000 6.000 9.000 50.0 15.9 1.000 2.50 J75008-4125-5 Dome JE Pistons Back Order
218595 4.125 4.000 6.000 9.000 54.0 15.2 1.000 2.50 J75008-4125-5 Dome JE Pistons Back Order
218592 4.125 3.800 6.000 9.000 50.0 15.1 1.100 2.50 J75008-4125-5 Dome JE Pistons Back Order
218592 4.125 3.800 6.000 9.000 58.0 13.8 1.100 2.50 J75008-4125-5 Dome JE Pistons Back Order
218592 4.125 3.800 6.000 9.000 54.0 14.5 1.100 2.50 J75008-4125-5 Dome JE Pistons Back Order
218593 4.125 3.750 6.000 9.000 58.0 13.7 1.125 2.50 J75008-4125-5 Dome JE Pistons Back Order
218593 4.125 3.750 6.000 9.000 54.0 14.3 1.125 2.50 J75008-4125-5 Dome JE Pistons Back Order
218593 4.125 3.750 6.000 9.000 50.0 14.9 1.125 2.50 J75008-4125-5 Dome JE Pistons Back Order
218594 4.125 3.875 6.000 9.000 50.0 15.4 1.062 2.50 J75008-4125-5 Dome JE Pistons Back Order
218594 4.125 3.875 6.000 9.000 58.0 14.1 1.062 2.50 J75008-4125-5 Dome JE Pistons Back Order
218594 4.125 3.875 6.000 9.000 54.0 14.7 1.062 2.50 J75008-4125-5 Dome JE Pistons Back Order