Cometic Gasket · New
Cometic Chevy LB1/LB4 Gen1 90 Degree V6 Top End Gasket Kit-4.060in Bore-.040in MLS Cyl Head Gasket
MPN PRO1006T-4060-040 · Store SKU cgsPRO1006T-4060-040
Supplier stock checked 11/8/2026, 3:41:06 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
COMETIC StreetPro Kits cater to the budget-minded street-rodder who is looking to purchase a kit with all necessary gaskets and seals needed for their rebuild. StreetPro gasket kits are sold as a top-end kits and bottom-end kits. Purchase both top- and bottom-end kits for a total engine rebuild. Quality gasket materials are a priority in StreetPro kits. Kit materials include: MLS, AFM, Aramid Fiber, and Armor Clad. MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel Chevrolet LB1/LB4 Gen-1 90 Degree V6 Top End Gasket Kit; 4.060in. Bore; .040in. MLS Cylinder Head Gasket Chevrolet LB1/LB4 Gen-1 90 Degree V6 Top End Gasket Kit, 4.060" Bore, .040" MLS Cylinder Head Gasket Chevrolet LB1/LB4 Gen-1 90 Degree V6 Top End Gasket Kit
Manufacturer fitment & guides
- GM V6 4.3L 1985-1993
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
Part-specific notes
- California Proposition 65: Y
