I've been jumping between a 351w, 390 FE or a 460 to put in my truck (77 4x4) ). I ran across a low mile 77 smog 460 for $400 and this may be the most power for money route. My main concern before I jump on it is headers. I found some cheapish shorties on ebay and I was curious if anyone has ran them. The truck is a 4 speed. Thankshttps://m.ebay.com/itm/Big-Block-For...3ImbR-9ETucAhg