5.0sTheWayToGo

I have really been intrested in putting a turbo on my stang. i was looking at this site www.turbochargedpower.com and would like to get the stage II turbo kit. I can do it until i get a new motor because im afraid 117,000 on the motor i have in the car now is a little much. so i was wondering if i could purchase the ford gt 40 crate engine and put the turbo on that motor. My question is will the motor hold up or would i be better off trying to find a 302 block and building it up for the turbo. i noticed on the website those guys were basically using stock motors and putting a turbo on them running about 8lbs of boost and making big numbers. here are the specs on the GT 40 crate engine.

Ford Racing 302 C.I.D. GT-40 345 HP Crate EnginesGreat power for a limited budget.

These 5.0L/302 GT-40 crate engine assemblies from Ford Racing are the perfect way to increase the performance of any ride. They include assembled aluminum GT-40 cylinder heads with 1.94 in. intake and 1.54 in. exhaust valves. The heads have 178cc intake runners and 62cc exhaust runners. The camshaft provides significant horsepower increases above 2,500 RPM and good low-end torque. Valve lift is .498 in. on both intake and exhaust. Duration at .050 inches is 220 degrees on both intake and exhaust. These engines feature a 9.0:1 compression ratio (nominal), and produce approximately 345 HP, making them great for limited budgets. Engines come assembled with: * Cast crankshaft * Pistons * GT-40 valve train * Ford valve covers * Water pump * Rear sump Fox style 5 qt. oil pan and pickup * Harmonic balancer * Spark plugs * Engine oil dipstick * Flywheel

Is there anything i would need to change on that motor before putting it in? i noticed the 9.0:1 compression..is that to high for boost? 8-9 psi right now. also does anyone know of the types of pistons they put in the motor. im sure they are hypertunic. If anyone could give me some advice that would be great. thanks

JD1969

You could boost that engine but stay around 8 psi unless you run a very good race gas. Heres the thing with forged vs. cast parts. With forged parts you can run more boost because they are stronger, but another big thing is that they are less likly to be damaged by detonation and when the do fail from detonation they tend to melt rather than break (like cast parts), so the chances of ruining the rest of the motor are less with forged parts.

5.0sTheWayToGo

Yeah eventually i want to build something up and then take that ford crate engine out. but for now i just want to run at about 8 lbs of boost and see what its like and everything. run that for about 3 or 5 years and slowly build up a 331 for it. Or would it be cheaper now to try and build a 331 with a forged internals?

5.0sTheWayToGo

Anyone know what would be the smart thing to do in this situtaion??

86HOGT

Run a lower compression, all forged engine.

5.0sTheWayToGo

Do you guys think i can used a stock block 302 bore it stroke it to a 331 for under 4000? and be ok with that and run the stage II HP turbo. Also have all forged internals