When I started my tear down it was not supposed to be a tear down so some of the initial things that came off were not well labels. I ended up with this bolt and sleeve and I am not sure where it goes. I pulled the engine out, replaced it with a crate motor. I also put in a new subframe and upgraded to tubular control arms. I took everything off the front of the car except the fenders and wiper motor. This bolt is about 3.5" long an larger diameter than the typical 5/6" stuff that is common in the car.
I have the new engine in with the trans mounted. Alternator on, z-bar reinstalled. The car didn't have AC, power brakes or steering when I started. I can see wear on the sleeve like something has been moving around it and their appears to be a white chalky corrosion on the bolt itself.
Opps, typo. Yeah, I meant to type 5/16" but that was wrong as well and mean 3/8" that is common for things like the intake and headers. Just giving a frame of reference.
Nope, that is installed. That was a much longer bolt and smaller diameter with the 3/8" threads that fit the accessories holes on the heads. And the sleeve appears to be more of a bushing than a spacer as it seems to have wear marks on it.
Yes, it is fine thread. And I only have one of them. I am thinking maybe it is something with the hood latch. I looked at the assembly manual this morning and didn't spot anything similar.
I agree with Keith. I don't think it's original. What are the head markings? That will
possibly date it anyway. Is the bushing rusted or is that rubber on it?
No markings on the head. Given that some previous owner used a finish nail instead of a cotter pin to hold the clutch pedal linkage to the z-bar, non original is entirely possible. And, I do know the car had front end damage because that's why I had to replace the subframe. It was sitting on my bench next to a smaller diameter bolt of similar length. My guess after discussing with you guys is these were used for the core support to subframe. I replaced to body mounts with Global West stuff and it came with core support mounts as well so if that's what it is, I am good.
Bruce1968;1783218683My guess after discussing with you guys is these were used for the core support to subframe. I replaced to body mounts with Global West stuff and it came with core support mounts as well so if that's what it is said:
FWIW this is my original core support/sub-frame bolt from my 67.
Agree with the rest here. Most SBC threads, if not all, are 3/8-16.
Body threads are 3/8-16 also. Drive her and see what falls off, otherwise, enjoy your new ride..
H/balancer bolt is 1/2-20X2 and would have a 3/4 inch hex head.
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