How tight of a fit is a 351C or 351W in a 1966 Coupe with a 200cid. I don't want to have to modify the shock towers. Thanks for your help
you won't have to modify the shock towers, but if you're moving up from a 200 you will need the following and then maybe some more stuff. 5 lug rear end, if you have 4 lug then you need to upgrade, and you might as well go with a 9" to begin with instead of getting an 8" and the replacing it later. V-8 Spindles. the spindles ont he v-8 cars are diffrent, you'll need to pick up a set. new brakes and wheels on all four corners. if you have a c4 you'll need to take it in and have it upgraded to handle the 8 (or just get a used one) new springs, for the heavier engine. motor mounts probably a bigger radiator, the one that was in my 6 cyl car was pathetic. throttle linkage for the v-8 is diffrent than it is for the 6 cyl. did i miss anything guys? upgrading to v-8 gear isn't difficult, it just takes time and money.
I'm going to do a 6 - 8 swap too. There's a thread in the classic talk forum with FAQs in it. This is one of the topics. DukeGnarley, you missed: new exhaust manifolds, pipes, mufflers new fan and shroud new shocks wiring loom for a V8 if you upgrade suspension to 5 bolt - new rims It's pretty big and I'm sure I'm missing more.
