jeff_the_dj

I just got a 93 gt black on black. and now i want to put in a 347 with good H/C/I what can I expect in hp? I am trying to find the best way to go. My father and I are going to do all the work he has his own shop and been a mechanic for 20yrs. Thanks for all input and 2 cents

primetime5.0

mine made 380/430.. shooting for 400 this winter

woodsy

100% dependant on the heads, cam and intake used.

ctgreddy

mine made 313
auto + very conservative tune + mustang dyno = fail

Portmaster

It can be just as mild or just as wild as you want or can stand to spend. My advice would be to figure out where you will use the car most and how you intend to drive it and come up with a plan. Match all your parts carefully for it's intended use. Don't build a drag car you intend to drive on trips. My advice would be to fall into the mostlly street sometimes strip train of thought.
The car will be much more fun on a conservative build if it's a daily driver and will last a longer as well.

MBDiagMan

Portmaster is offering lots of wisdom. I would suggest that you listen to what he is saying.

If you have the money, you can build a gazillion horsepower into this engine, but if you do it will be at the expense of low speed torque making it less than fun to drive.

Horsepower is nothing but a calculated number, not a measured unit. It is a calculation which is increased by higher torque or higher RPM. The developed amount of torque will be about the same, but it's a matter of what RPM you build that torque peak at. If you build the torque peak at a very high RPM you will have a very high calculated horsepowere number and be able to win lots of races. If OTOH you build a more conservative engine with your torque peak at a lower RPM you will have a car that is much more fun to drive.

Torque makes a car fun to drive. Horsepower wins races.

mjr46

define your use goal and then that will help determine heads , cam and intake

88workcar

I agree with make a decision and stick to it.

#1 WHAT DO YOU WANT

Mine is a 342, standard bore block (347 - .030 over) mine makes 408 RWHP on 93 octane. 11.30s @ 126 on radials, deep 10s on slicks

#1 WHAT DO YOU WANT

P.S.--don't forget WHAT DO YOU WANT!

BlessedHellride

I agree with this guys post 100%. Do what you want or can afford to do and dam anyone else if they belittle you for your accomplishments. I spent a ton of money on my 347 build. I built the entire car all at the same time so it's really hard to say where all the money actually went to specifically, but my point is that I built my car for me and me only. I won't give two $hits if it runs a 15.50 E.T. My car is a blast to drive on the street. I will find out next weekend what she will run in the 1/4, I got a race the first weekend in December in Belle Rose, LA.

steelcowboy

I'm doing the same building process right now. I'm ordering a crate though since i have the money right now but not the time. Mines supposed to have about 500-525 since its all forged and a solid cam. BUT now I'm having to spend another 3 g's on a TKO 600. So like the other guys were saying build it to suit your needs.