Decal Valve Cover Engine Code Letter Ir-66-68

Note: valve cover engine code decals are mounted on rear vertical surface of rh valve cover.

Valve cover engine code letter kit, ir.

1966-67 427 l-36 w/390 h.p., 1x4 carburetor, special cam, hyd. lifters and k19 powerglide.
1968 427 l71 w/435 h.p., holley 3x2 bc, mechanical lifters and 4-speed.