Hey Guys and Gals, i've been reading the posts on the 521 V8 swap and it comes down to either your going to cut up your truck or stay pretty much stock, I have a 521 and was in the same dilema , well I decided to go for it and I've been on my project for about 2 years now , but being fair I'm out of town alot for my work , I gotta say it's been a blast building, and you have to change everything , rearend, suspension, body, interior, exhaust. As you can probably tell by my name that I'm building a Gasser, straight axle, 350, with 4 speed and all the gasser goodies.