Part Number: PFERMC-LSX

Upgrade your LSX build with the Proflow billet aluminium rear main cover, a durable and cost-effective solution designed specifically for GM LSX-based engine blocks. Precision machined from billet aluminium, this cover is a direct replacement for LSX architecture blocks only, including GM Performance and Warlord variants, which differ from standard LS rear main configurations.

Supplied complete with seals and mounting bolts, the Proflow LSX rear main cover provides a straightforward installation while delivering improved strength and a clean, professional finish for high-performance engine builds.