Chevy SBC BBC Ford SB to Powerglide C4 TH400 Aluminum Bellhousing [PCE542.1021] They're precision-machined for optimum thread

They're precision-machined for optimum thread engagement and have a wide-area flange for better load distribution

They feature rotary swaged ends are prelubed for smooth operation

Every Speedmaster flexplate is 29

measuring 102mm

Designed to work with PCE628

Chevy SBC BBC Ford SB to Powerglide C4 TH400 Aluminum Bellhousing [PCE542.1021] They're precision-machined for optimum threadThese bellhousings are designed for circle track, strip, and street applications. Built from high grade steel, the cone is spun, not rolled or stamped, allowing these bellhousings to be the most dimensionally stable and accurate for today's high performance vehicles.