[65chevelle502]

Does anybody know what size the fender bolts are and the diameter of the washers on a 65? I need the sizes for the ones that go into to core support and also the ones up at the fire wall. Thanks

 

[JFarmer]

Looks like the core support takes 5/16" - 18 x 7/8" bolts with 3/4" washers and firewall uses 3/8" -16 x 1 1/2" bolts with 1 1/4" washers. You can get a complete fastener kit from NPD.
Hope this helps, Jim