Mustang mike 0 Report post Posted July 6, 2019 What size bolt mounts engine to frame? Quote Share this post Link to post Share on other sites
69RavenConv 286 Report post Posted July 6, 2019 Welcome to the forum, Mike. It depends upon the model year and engine. You'll need something like this for a small block: https://www.cjponyparts.com/scott-drake-motor-mount-bracket-engine-frame-side-for-1966-plus-style-motor-mounts-pair-small-block-v8-1965-1970/p/EFB8/ Quote Share this post Link to post Share on other sites
Caseyrhe 650 Report post Posted July 6, 2019 CJ's shows the small block and big block are different, so buy accordingly. Quote Share this post Link to post Share on other sites
Mike65 475 Report post Posted July 6, 2019 Welcome Mike. Quote Share this post Link to post Share on other sites
barnett468 418 Report post Posted July 7, 2019 Just use the largest diameter ones that will fit in the hole. Measure the length you need then go buy 2 that are 3/8" and 2 that are 7/16" if you don't have either size laying around. Quote Share this post Link to post Share on other sites