The Cometic AFM intake manifold gasket kit for Chevrolet LB9/L98 Gen‑1 305/350 TPI uses a chemically blown nitrile synthetic bonded to an aluminum core with temperature resistance above 250°F and about 85% recovery. AFM material maintains strong torque retention, typically needing no sealers or re-torque, and the kit is manufactured to meet or exceed OEM quality for reliable intake sealing on these Gen‑1 TPI applications.
Cometic Chevrolet LB9/L98 Gen-1 305/350 TPI Intake Manifold Gasket Kit