331 0r 347

todd95GT · 10-18-2001, 10:22 AM

Correct, the 331 assembles like a standard stroke 302. However, if you're rebuilding the motor and machining the block, it's not too expensive to notch it for stroker clearances. My plans call for a 331. Don't ask why, I just like the sound of it. You're still talking about 30 extra cubes though. On a 300 horse 5.0, that's an extra 30 ponies right there. And that's just equating a modest one horse per cubic inch. I have read about longevity issues with 347's due to the piston design as previously stated in another response, but I don't know if you should be concerned about that in a street application. The current 5.0 and Super Fords issue has a 331 build up with AFR 185's and a Probe stroker kit. Next month is the dyno test and results.

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Todd
1995 GT/T-5
Pulleys; 65 mm TB; Flowmaster cat-back; Mac off road H-pipe; FMS aluminum driveshaft; short-throw shifter; HD clutch; Cobra R's; Cobra front and wing

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10-18-2001, 10:22 AM	#1
todd95GT Registered Member Join Date: Aug 2001 Location: Palm Beach Gardens, Florida, USA Posts: 191	Correct, the 331 assembles like a standard stroke 302. However, if you're rebuilding the motor and machining the block, it's not too expensive to notch it for stroker clearances. My plans call for a 331. Don't ask why, I just like the sound of it. You're still talking about 30 extra cubes though. On a 300 horse 5.0, that's an extra 30 ponies right there. And that's just equating a modest one horse per cubic inch. I have read about longevity issues with 347's due to the piston design as previously stated in another response, but I don't know if you should be concerned about that in a street application. The current 5.0 and Super Fords issue has a 331 build up with AFR 185's and a Probe stroker kit. Next month is the dyno test and results. ------------------ Todd 1995 GT/T-5 Pulleys; 65 mm TB; Flowmaster cat-back; Mac off road H-pipe; FMS aluminum driveshaft; short-throw shifter; HD clutch; Cobra R's; Cobra front and wing