Ford 427W Probe Pistons 4.030 X 4.170 X 6.125 -19.3.0 CC Dish Top. These probe industries forged pistons will give you 10.58:1 CR with 58cc heads. Compression will be 9.61:1 with 64cc heads. Ring size is 1/16, 1/16, 3/16. These pistons use ring set 315-0036 from Probe (also sold by Stage 3 Motorsports). Call 623-435-0166 with questions on this piston set. Price is for a set of 8 pistons w/o rings. If you need these pistons in .040 or .060 please list this info in the order notes section. Call us today for a price on any Probe industries Forged Piston! 623-435-0166
