Cometic 4.200 MLS Head Gasket - .040 - SB Chevy NG500 3200 rpm governor spring extends

3200 rpm governor spring extends engine rev range by 700 rpm

Features a billet stock style neck which accepts your stock cap or Canton Racing 81-236 billet aluminum cap

1978-1979 American Motors Concord

Compatible with the GTX3 Carbon

Cometic 4.200 MLS Head Gasket - .040 - SB Chevy NG500 3200 rpm governor spring extendsProduct Description: Cylinder Head Gasket 4. 200 in Bore 0. 040 in Compression Thickness Multi Layer Steel Small Block Chevy Sold Individually Since 1989, Cometic Gasket has grown into a leading worldwide supplier of custom and short run gaskets for the motorsports industry. Cometic Gasket supplies hi performance gaskets for a variety of motorsports markets. Today, Cometic produces and ships more than 5,000 types of gaskets. Since its inception,