Ford Racing 4.125" Bore Head Gasket 0.040" Thickness Graphite SB Ford - Pair 91940079 332 lb/in Spring Rate

332 lb/in Spring Rate

of OEM spec hose

Accessory Plug-In

2" Shoulder Accomodates HNR / HANS Device

Ford Racing 4.125" Bore Head Gasket 0.040" Thickness Graphite SB Ford - Pair 91940079 332 lb/in Spring RateCylinder Head Gasket 0. 040 in. Gasket Diameter 0. 040 in. Compressed Thickness 9. 0cc Compressed Volume Made in the USAFord Racing offers a variety of products for hard core racing and street vehicles. Ford Racing is the performance parts division of Ford Motor Company. They offer a selection of replacement and upgrade parts specifically for Ford vehicles. Many of their products provide performance upgrades without voiding the factory warranty.