Ford Racing 4.125" Bore Head Gasket 0.040" Thickness Graphite SB Ford - Pair 91940079 This small-block Chevy manifold has

This small-block Chevy manifold has a runner design that's "tuned" for peak torque at 3500 rpm on a 350-inch engine and its ideal for power from off-idle to 5500 rpm

2" Shoulder Accomodates HNR / HANS Device

332 lb/in Spring Rate

Accessory Plug-In

of OEM spec hose

Ford Racing 4.125" Bore Head Gasket 0.040" Thickness Graphite SB Ford - Pair 91940079 This small-block Chevy manifold hasCylinder 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.