The bolts are the same diameter 3/8" coarse thread, but there may be some slight differences in length. I've seen manifolds that have different height ledges where the clamps fit, so would need shorter or longer bolts, mainly at the end bolts. Here's a picture of the manifold on my 216. Note the long bolt on the rear position.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
