Quote:
Originally Posted by blackbetty68  I recently pulled my 289 out of my 68 mustang. I was looking for a new, bigger motor, i was thinking either a 306 or a 347 stroker. I am looking to make around 400-450 hp. Is anyone running either of these motors and how easy was it to make power with simple bolt on parts? |
Ever drove a 400hp car? Probably not and niether have your buds. Horse power is great but you really don't need that much power to have a quick and fun car to drive. I took a look at the car...I'm assuming that that is it in your gallery you have a lot of work to do before you are ready for the motor, don't worry the car looks like a great project, you just have a bit of work to do.
Assuming you haven't done this before do the body work first. If you do the motor first you'll never get around the the other stuff. Be sure the car is structually sound. Pay special attention to the floor pans and frame rails. I used to live up that way (Hammond) salt eats cars up. I'd be willing to bet the underside need some attention. You need to do it for safety's sake. Horse power won't do a bit of good if you can't get it to the pavement or can't control what you have due to a poor platform. Also pay attention to the cowl vent area.
Install subframe connectors, an export brace and monte carlo bar. Upgrade the brakes, and pop for some high quality shocks and rubber and you're going to need some traction bars. None of this is cheap by the way. Along the way the wiring is probably going to need attention and the interior is probably showing its age. AFTER all that you'll be closer to being ready for that new motor.
Some suggestions on the motor-stay conservative. Sounds boring but it's not you'll be very pleased with the results. The stroker is good especially since the motor is out and your rebuilding anyway. IMO the 347 pushes the 302 block just a bit too far I'd go with the 331 instead, that's just an opinion there are a lot of 347's roaming the steets and their owners are happy with them, but a 331 will give you virtually the same performance and not push the envelope as much. Get a 600 cfm Edelbrock (pass on a Holley, 4100 Autolite is a solid choice too)vacuum secondary carb and a dual plane high rise, a good set of headers-pop for ceramic coated ones, reworked 351W or
used aftermarket heads (new ones are expensive and you can pick up the heads you need real reasonable at the swap meets) and a cam that's around 270-280 on the duration and
under .500 on the lift. Do that and you will have a car that's safe, fun to drive and faster than what your friends drive, you won't be pushing 400 horsepower it will be more in the neighborhood of 300-350 but you won't notice or care.
Good luck with the project.
Mike
Which engine is better? 
