COMP Cams Seat Spacer BB Chevy Exhaust .300" Thickness RS00500305 These gaskets are used between

These gaskets are used between the upper and lower manifolds to create an air tight seal and prevent erratic idle if a vacuum leak is present

24 & 25 Series big body steel shocks

Filter flows enough fuel for any race car

Vehicle Applications: 2011-newer Ford MustangVehicle Applications: 2011-newer Ford Mustang

Pro Series Bolts are rated at 190

COMP Cams Seat Spacer BB Chevy Exhaust .300" Thickness RS00500305 These gaskets are used betweenLate model Big Block Chevrolet engines are originally equipped with exhaust valve rotators. Until now, the only way to make up for the rotator was to stack . 300" of shims under the spring. This was sloppy but also did not fit as well as these seat spacers. These will locate the spring with an outside step so the spring cannot "walk" around on the head. Avoid stacking . 300" of shims under the valve springs on your Big Block Chevrolet with our seat