The Cometic StreetPro bottom-end gasket kit for Chevrolet 350/400 Gen‑1 small-blocks provides a complete set of lower-engine gaskets and seals for rebuilds, including two-piece rear main seal options and materials chosen for street applications. StreetPro kits prioritize cost-conscious builders while using quality materials like MLS, AFM, aramid fiber and ArmorClad to ensure reliable sealing where it matters most in the bottom end.
Cometic Street Pro GM 1967-88 350ci 1970-76 400ci Small Block Bottom End Gasket Kit