blaylock6502
New member
I am rebuilding my 74 258. I am putting a head off an 85 on it. I was curious as to which rebuild kit ppl liked if anyone had an opinion? Also can I use rockers and pushrods from my 74 or do I need new for an 85? Also I had someone tell me if I used the pistons from the 74 I had to get spark plugs from an 85 as the heat range is different and 85 plugs could damage pistons? Thanks!?