Availability
Engine Works rocker arm and stud girdle polylocks are manufactured from high-grade alloy steel, finished in black oxide, and feature cold-formed 12-point reduced heads for quick R and R. The bottom of each one incorporates a .550 in. step that centers the polylock on the trunnion of the rocker arm, and they are available in both 7/16 in. and 3/8 in. sizes. The stud girdle polylocks have a .950 in. long shank. Choose the size you need.
Not Yet Reviewed
$33.71
Engine Works offers several options of intake manifold bolts to purchase exactly what you need for small block or big block engine. The bolts are available in different sizes and finishes, with or without washers, and in different quantities. Choose the 12-point intake bolts in the size, quantity, and finish you need.
Not Yet Reviewed
$21.86
Modal Header