Traum 89.5mm Forged Pistons for J series Engine

Description Traum Forged Piston set for J series Engines. Includes Pistons, Rings, Wrist Pins, & Clips. 89.5mm is .5mm oversized for all J32 & J35 blocks. Here is the estimated compression ratio based on matching Crankshaft & Rods. Dish Top J32 Crank & Rods = 9.3 J35 Crank & Rods = 9.95 J37 Crank & Rods = 10.25 Flat Top J32 Crank & Rods = 10.0 J35 Crank & Rods = 10.7 J37 Crank & Rods = 11.0 Dome TopJ32 Crank & Rods = 10.8J35 Crank & Rods = 11.75J37 Crank & Rods = 12.1Tall Dome TopJ32 Crank & Rods = 11.5J35 Crank & Rods = 12.4J37 Crank & Rods = 12.75