109 Block Cometic Head Gasket Pair – .040 Thickness

This 109 Block Cometic Head Gasket Pair in .040 thickness is designed for Turbo Buick builds that demand reliability under pressure, whether you’re refreshing a street setup or assembling a serious performance combination. These are multi-layer steel (MLS) gaskets engineered to maintain combustion sealing while handling heat cycles and boost that traditional composite gaskets simply can’t tolerate.

🟦 New Part – Engine Sealing Upgrade

Specifications

• Pair of head gaskets for 109 blocks

• .040 compressed thickness

• Multi-layer steel (MLS) construction

• Precision laser-cut layers for consistent bore sealing

• Designed to handle elevated boost and cylinder pressure

• Compatible with stock and performance engine builds

• Sold as a matched pair

Condition Notes

• Brand new

• Never installed

• Clean sealing surfaces

• Sold as a complete left/right set

• Ready for immediate installation

Why You Want It
Because lifting a head ruins weekends. MLS Cometic gaskets provide superior sealing compared to factory-style composites, especially once boost levels climb. The .040 thickness helps maintain proper quench while offering reliable combustion sealing across the entire bore. These gaskets are built to survive heat, pressure, and repeated pulls without giving up. If you’re investing in heads, machine work, and tuning, this is not the place to save money — these gaskets protect everything above and below them.

All parts are sold as-is with no returns, refunds, or exchanges. Buyer is responsible for verifying fitment for their specific application prior to purchase. Turbo 6 Parts makes no performance guarantees. All sales are final.