Description
The Black Widow true roller rocker arms offers some amazing features. Manufactured here in the USA, the Black Widow roller rocker arms feature oil restriction built into the body. This oil restriction will prevent the mass flooding of oil that these Oldsmobile engines are known for. Increased spring life of over 40 percent due to the engineering design which provides strength in the areas needed and weight reduction in other non important areas. Seen as over 30 grams per rocker arm when compared to others. Intended for the factory iron big block cylinder heads with casting letters of A,B,C,D,E,F,H,G,Ga, Fa, K, Ka. Also for small block Oldsmobile cylinder heads with casting numbers of 2,3,4,5,6,7,7a and 8 comes complete with 16 rocker arms, 16 poly locks and 16 jam nuts. 1.6 ratio. Fits 7/16th studs. For further info contact us at 800 382 1320.
