This stroker combination was the base of the original "3.4" stroker kits. The 94mm (3.7inch) stroke is a hardworking combination that has proven itself in 1000-1600hp+ street Supra's for years. It's also a great option for drifters looking to add response/spool. Using a modest 29.71mm (1.17 inch) compression height piston you end up with a extremely durable engine. Jay's go to for over a decade the 94mm stroker is best paired with 75mm-85mm sized turbines. Make 1000+whp without having to stress the parts!