I put a V8 in 63 Valiant twice now and it isn't as hard as you guys I think it is. I never cut out any sheet metal and never replaced the wiper motor assembly. I did have to move that section of the firewall backwards about an inch to an inch and a half, but it wasn't that difficult.
What did you have to do just beat it back,But Rick Parker said he didn't have to do anything he even used the slant 6 centerlink he just modified his oil pan for that.
