Hello,

I have a 85 F150 with a 79 351w and c-6 tranny. I am putting in a new engine because the other one is worn out and the two piece rear main seal is a pain in the ***. anyways I want a one piece rear main seal block I was just going to get an 85 crate engine and was going to put the edelbrock performer intake , carb, and headers off my other engine on the new one. does anyone see any issues with this as far as vacuum and smog go or anything else. I didn't do the original swap in of the 79 but I don't think it will be a big deal. thanks this is my first time messing with a 351w