Need tips on motor swap?!

[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.

[46Tbird]

If you want confirmation of what I stated above, go to dfwmustangs.net and look for threads started by 91CoupeMike. lol

[Mike]

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.

Spoken like a pro! I thought I was going to build my yellow car within three months and support 500hp without issues. I quickly found out that it was going to take longer than that to do it right, and the cost would be much higher than expected.

OP, have you put much thought into what tranny you plan on using to support this 500hp goal? Your typical T5 and AOD aren't going to be up for the task for very long.

Originally Posted by 46Tbird If you want confirmation of what I stated above, go to dfwmustangs.net and look for threads started by 91CoupeMike. lol

lmao