Need tips on motor swap?!

[OG Fox]

STOP HIJACKING MY THREAD.

lets stay on topic. how hard would it to get 400 wheel horsepower out of a 302.? lets say i found an 91 in the graveyard somewhere. what would the plan be? is that something i can keep around 5k for just the motor.

[Grandpa]

Originally Posted by OG Fox STOP HIJACKING MY THREAD. lets stay on topic. how hard would it to get 400 wheel horsepower out of a 302.? lets say i found an 91 in the graveyard somewhere. what would the plan be? is that something i can keep around 5k for just the motor.

Sorry, Dale. Cleaned up the thread for ya.

Your typical heads/cam/intake/carb 302's will make 280-310rw. For 400rw NA you will need to build a 351 based stroker with good heads, cam/intake/carb.

[blownaltered]

Originally Posted by OG Fox STOP HIJACKING MY THREAD. lets stay on topic. how hard would it to get 400 wheel horsepower out of a 302.? lets say i found an 91 in the graveyard somewhere. what would the plan be? is that something i can keep around 5k for just the motor.

347 with heads, cam, intake, exhaust will be close. You will not make it with a 302 without a power adder. Yes it can be done for 5k if you do your own work and buy a few things used.

[STROKD]

Originally Posted by OG Fox STOP HIJACKING MY THREAD. lets stay on topic. how hard would it to get 400 wheel horsepower out of a 302.? lets say i found an 91 in the graveyard somewhere. what would the plan be? is that something i can keep around 5k for just the motor.

Not happening. Sorry, just being honest.

[Grandpa]

Originally Posted by STROKD Not happening. Sorry, just being honest.

Agreed. No 302 based motor is going to get there. It will require a 351 based motor of some sort.

[STROKD]

Originally Posted by Steve Agreed. No 302 based motor is going to get there. It will require a 351 based motor of some sort.

yes and no. a 302, no, a 302 stroked to something substantial, yes. my dad's 351 stroker made 487 bhp which would be around 410rw, and it's only 8.8-1 and has a baby cam and small heads...

I think a 347 with 11-1 compression and some good heads would make over 400 rw, but it wouldnt be 5k unless he found all the parts used.

Edit, I think Toby made 420 rw with a 347 as well... not sure on specifics.

[OG Fox]

Originally Posted by STROKD yes and no. a 302, no, a 302 stroked to something substantial, yes. my dad's 351 stroker made 487 bhp which would be around 410rw, and it's only 8.8-1 and has a baby cam and small heads... I think a 347 with 11-1 compression and some good heads would make over 400 rw, but it wouldnt be 5k unless he found all the parts used. Edit, I think Toby made 420 rw with a 347 as well... not sure on specifics.

ok cool, these are the answers i been looking for.
I just got the new Muscle Mustangs and Fast Fords and they did a whole bunch of engine combos on the 302/stroker/boosted applications.

The final N/A motor was a 363 stroker (302 based block), dart pro heads, holley 950 carb, custom cam, and put down to the crank 564/ 487.

in comparison to a modified carb 347 stroker which put down 482/ 424 to the crank.

So it looks like I'll be going stroker.

[46Tbird]

There is no way you will get 500 n/a hp between the rails on a $5k budget.

Originally Posted by OG Fox ok cool, these are the answers i been looking for. I just got the new Muscle Mustangs and Fast Fords and they did a whole bunch of engine combos on the 302/stroker/boosted applications. The final N/A motor was a 363 stroker (302 based block), dart pro heads, holley 950 carb, custom cam, and put down to the crank 564/ 487. in comparison to a modified carb 347 stroker which put down 482/ 424 to the crank. So it looks like I'll be going stroker.

To get that 363" size you have to run a 4.125" bore which automatically means a $2000 aftermarket block. That doesn't include the machine work to clearance it for that big stroker crank and buying all the rods, pistons, rings, bearings, cam, timing set, etc etc etc. I'm not sure you could get that short block together for your $5k budget - and then all you'd have to bolt on it would be those sweet smogger '82 heads.

Concentrate your $$ where it counts. Your best bet is to buy one of those well built long- or shortblocks that other people have posted up. Let someone else take a hit on all that pricey stuff. Remember that you're going to have to spend a fortune in headers/exhaust, fuel system/carb, ignition, converter or clutch, transmission, rear end, suspension, etc to support ANY "500hp" engine combination.

Building a car ain't cheap, so when someone says they have a cheap and fast Fox body, they are talking about an '87-93 car with a nitrous kit that is living on borrowed time.

[Grandpa]

Originally Posted by 46Tbird There is no way you will get 500 n/a hp between the rails on a $5k budget. To get that 363" size you have to run a 4.125" bore which automatically means a $2000 aftermarket block. That doesn't include the machine work to clearance it for that big stroker crank and buying all the rods, pistons, rings, bearings, cam, timing set, etc etc etc. I'm not sure you could get that short block together for your $5k budget - and then all you'd have to bolt on it would be those sweet smogger '82 heads. Concentrate your $$ where it counts. Your best bet is to buy one of those well built long- or shortblocks that other people have posted up. Let someone else take a hit on all that pricey stuff. Remember that you're going to have to spend a fortune in headers/exhaust, fuel system/carb, ignition, converter or clutch, transmission, rear end, suspension, etc to support ANY "500hp" engine combination. Building a car ain't cheap, so when someone says they have a cheap and fast Fox body, they are talking about an '87-93 car with a nitrous kit that is living on borrowed time.

Exactly. Very well said.


Cheap, fast or reliable. Pick two because it's all you get.

[331fox]

Aod are junk no matter how much money you put in them

[Mike]

Originally Posted by OG Fox STOP HIJACKING MY THREAD. lets stay on topic. how hard would it to get 400 wheel horsepower out of a 302.? lets say i found an 91 in the graveyard somewhere. what would the plan be? is that something i can keep around 5k for just the motor.

The budget you are setting is MORE than enough to get to your goal, but it's a waste of time trying to do it with a 302 based block. I run across 393's, 408's and other 351 based strokers all the time that are complete and ready to drop in for under $5k.

Originally Posted by STROKD 74 is a decent year, with stock 2 bolt mains its safe to about 600-650bhp... Or 500ish rw. I beam rods are cheap, SRP pistons are off the shelf non custom replacements made by JE (decent). I think the price is fair because of the heads... What compression and cubic inch is it?

That is a 408Ci, not sure on compression.

[STROKD]

Originally Posted by Mike The budget you are setting is MORE than enough to get to your goal, but it's a waste of time trying to do it with a 302 based block. I run across 393's, 408's and other 351 based strokers all the time that are complete and ready to drop in for under $5k. That is a 408Ci, not sure on compression.

for a 408 with a good forged crank, the price is more than reasonable. I would figure that motor with 205s and a good carb intake should make 430-450 at the wheels depending on compression?

Edit, just re read the motor setup, with a solid roller it could make near 500 rw... that'd be a fun street engine.