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Wanted To Buy: 330 Jetstar B body driver's side manifold. 380145 #2
That's going to be a tough one. Only used on the 1964-70 B-body cars with small block. The 384785 used on the big block cars is a lot more common but taller. You MIGHT be able to make it work in a pinch, but the crossover pipe would be custom. Here's a comparison. 380145 on the left, 384785 on the right.
Research tells me the BB manifolds will bolt to SB heads but hit the engine mounts. Is this true if the mounts are bolted to the front two holes? It does look like the dumps are in the relative same area and since I am fabricating mounts anyway I can place the engine front to back to fit, but it does look like the BB manifold is taller.
Research tells me the BB manifolds will bolt to SB heads but hit the engine mounts. Is this true if the mounts are bolted to the front two holes? It does look like the dumps are in the relative same area and since I am fabricating mounts anyway I can place the engine front to back to fit, but it does look like the BB manifold is taller.
Your on-line research will only find references to using W/Z manifolds on SBOs. That has nothing to do with this. Go back and look at the photo I posted. The only apparent difference in the center-dump manifolds is the length of the outlet section that doesn't even come close to the motor mounts.
It may simply be an illusion of perspective from your pics but the BB manifold does appear, to my eyes, to be larger in the body as well as the length of the dump. Hence "looks taller'.
Last edited by Miguel-x; February 14th, 2022 at 09:15 AM.
It may simply be an illusion of perspective from your pics but the BB manifold does appear, to my eyes, to be larger in the body as well as the length of the dump. Hence "taller'.
It's not. The photo is at a slightly different angle. Unfortunately I didn't have both manifolds in the same place at the same time for one photo.
February 13th, 2022, 05:34 PM
