A previous owner at some point used a piece of all thread in the wrong pitch. Anybody know if either one of these are going to fit a 67 with a 289 for sure? http://www.cjponyparts.com/alternat...mactor-special-bolts-(3)-1966-1967/p/ALTM623/ http://www.cjponyparts.com/alternat...erm,-w/-gold-spacers-(6)-1966-1967/p/ALTM622/
Yeah I'm still not sure. It was mounted with a piece of all thread (incorrect thread as well), a hand cut spacer, and a regular bolt. Car has no options (no A/C, no PS, no smog). So none of these look right to what I need technically.
Easiest thing to do is just order a kit will all the right parts for your configuration and replace everything. If the threads on the head side are bad you will need to either repair them or swap your heads between left and right banks.
It seems there is enough threads left in the head that the correct thread bolt will fit, if not I'll likely helicoil it. I'm mostly just want to make sure I get the proper length bolt.