cervidog
12-01-2010, 03:55 PM
I have en early 70s 400 sbc and I am wondering what size and thread pitch the head and crank main cap bolts are ?Thanks Tony.
zipper06
12-01-2010, 07:48 PM
7/16" X14 pitch, mostly 5/8" head size, but some are 13/16 head dia.
Zip.
cervidog
12-09-2010, 05:49 PM
Thanks Zipper06,I want to freshen up the engine this winter and will need some taps and thread chasers.[/list]