StraightJacket,
Welcome to the Stovebolt

Are you working on a Chevy or GMC?
The Chevrolet straight 6 engines were nick named the "Stovebolt 6" because of the type of bolts (1/4-20 slot screw bolts which are called stove bolts) used to fasten the tin on their motors back in the late 20's and 30's.
Mike B
