This bellhousing is designed for circle track, strip or street application. Will fit Ford 351M, 400, 429 , to Ford T5 Tremec transmission, built from high grade steel, the cone is spun not stamped or rolled making this bellhousing the most dimensionally stable and accurate on the market today. It's 7.05 in deep bellhousing will clear a 176 tooth flywheel and a 12 in clutch assembly. Transmission bore is universal at 4.685 - 4.910 in and is set up for adjustable pivot. Weighs 22 pounds, block plate and grade 8 hardware included in the kit. S.F.I. approved