347 stroker kit vs 331 stroker kit ? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
 
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post #1 of 5 (permalink) Old 05-12-07, 05:16 PM Thread Starter
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347 stroker kit vs 331 stroker kit ?

Hi I am rebuilding a 302 for my XT and would like to know peoples experience with 331 & 347 stroker kits. Would also like to know what sort of horespower and torque made. I am restricted to using the origianl cast 4V heads as it is a GT and want it to look standard from the outside.

Would like to make around 420 to 450 HP at flywheel. All help and info would be appreciated. Thanks Lyle.

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post #2 of 5 (permalink) Old 05-16-07, 01:38 AM
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Re: 347 stroker kit vs 331 stroker kit ?

So you have a factory 4 barrel 302w. Does this mean you have 302Boss heads? if not and they are standard 302 heads they are a restriction.
A bit unfamiliar with older heads.
GT40P cast heads if you want to keep a stock look or
I say a 347, victor heads, funnelweb intake. custom cam, roller rockers.

95 Mustang GT 302: VQ-S2 Vortech - Edelbrock Intake - BBK 70mm TB - UPR Boostpipe - TwEECer - Walbro 255 & T-Rex fuel pump - MSD btm - Crane HI-6 - 36# injectors - Pro-m 80mm MAF - Kirban FPR - FMS 9mm leads - FMS 3.73 Gears - Transgo Shift kit - B&M cooler - Saleen guage pod, FMS Boost and FP guages - R/H drive - Eibach Springs - Holley headers, http://www.meales.com.au
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post #3 of 5 (permalink) Old 06-25-07, 04:47 PM
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Re: 347 stroker kit vs 331 stroker kit ?

I've talked to 3 different people who've pulled 347s out of daily drivers due to ring blow by. If daily driver331, competition 347
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post #4 of 5 (permalink) Old 07-01-07, 03:51 PM
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Re: 347 stroker kit vs 331 stroker kit ?

Quote:
Originally Posted by George1861
I've talked to 3 different people who've pulled 347s out of daily drivers due to ring blow by. If daily driver331, competition 347
If built right.....you won't have any problems.....347 has my vote.
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post #5 of 5 (permalink) Old 07-15-07, 07:26 AM
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Re: 347 stroker kit vs 331 stroker kit ?

go for 347ci. heavily worked 302 4V heads will get you up near the power you want, aftermarket are ideal but being a gt the stock look would be great. trouble is you will need a very non stock looking intake, carb, exhaust, etc to achieve that power, so maybe some painted aftermarket heads can be disguised enough. get back to me if u have any more questions, cheers.

Craig Johnston.
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