I just picked up a 1970 barracuda. Its a 318 car and I want to put either a 440 or 426 engine with the 727 transmission. It has the 8 3/4 rear end. I'm a new mopar guy and I've heard that I may have to replace the front clip on the car to install the big block? I'm not familiar with this, as chevys you just had to change motor mounts. Can someone please tell me what exactly I will need to do to drop a big block in this car? I would really appreciate it. Thanks for the help. Glad I found this forum.
Hi Jason,I'm no pro about this but no, you will not need a new clip to put a BB engine in your car. '70-'74 E-bodies are cool because they were design from the factory to take any engine that Mopar had at the time. I think they had like 9 engine options for the E-body line in 1970. Depending on the route you go, and you'll need to investigate this more of course, you may not need to change much. Since you already have a V8 in there, I believe that all V8 "K Frames" on the E-bodies are the same, you just need to change the engine mounts with opne exception-The Hemi engine. I believe this may need a different K-Frame. I would talk to the guys at Schumacher as to the exact parts you'll need to do the swap as they have all sorts of cool engine swap stuff on their site. Make sue what ever BB engine you get, make sure the 727 is a BB 727, not a SB 727. The internals I belive are the ssame but the bell housing id diferent.Other things to consider going from a SB to BB: Larger 26" radiator, BB torsion bars, new exhaust (at least a 2.5"-3" diam. exhasut, the 318 may only have a 2" pipe now), bigger sway bar front/rear. Your going to be adding like 100lbs or so of weight to the front end so you'll need to compensate for this. Depending if you go Hemi or not, you may also have to change to manual steering/brakes or else find a Hemi Master cylinder, which has a smaller vacuum accumulator. Oh yeah, you may want to think about some real sticky tires as traction will be a major problem, but worth having! Hope this helps, Phil.