Traum 90mm Forged Pistons for J series Engine

Traum Forged Piston set with moly coated skirts for J series Engines. Includes Pistons, Rings, Wrist Pins, & Clips.90mm is the standard size piston for all J37 blocks and is a +1mm for J32 and J35 blocks.Here is the estimated compression ratio based on matching Crankshaft & Rods. Dish TopJ32 Crank & Rods = 9.0J35 Crank & Rods = 9.65J37 Crank & Rods = 10.05Flat TopJ32 Crank & Rods = 9.7J35 Crank & Rods = 10.4J37 Crank & Rods = 10.75Dome TopJ32 Crank & Rods = 10.6J35 Crank & Rods = 11.55J37 Crank & Rods = 11.8Tall Dome TopJ32 Crank & Rods = 11.3J35 Crank & Rods = 12.2J37 Crank & Rods = 12.5