The McLeod aluminum bellhousing for Chevrolet/GM 621 applications is a lightweight, non-SFI rated unit intended for customers who want reduced weight without an SFI steel block plate. McLeod positions these bellhousings as precise, compact components that provide accurate fit and a lighter alternative to SFI-rated units. The non-SFI designation and aluminum construction are explicit product distinctions.
McLeod Bellhousing Chevrolet/GM 621 (Non SFI)