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How much hp for a 331,347???

Old 10-03-2007, 04:13 PM
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cammed99gt
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Default How much hp for a 331,347???

Hey guys i never posted in the 5.0 section before but i really miss my old fox and thinking about getting another one.I drive a 99 gt for my dd.So this one would be a project car that can stay down how ever long it takes me to do something to it when i want.

I will put a 331 or a 347 in itand just worndering on some of the numbers.
I was thinking about p&p trick flow heads(afr second choice though), a good intake and a .550+ lift cam and around 11to1 compression with lt headers.I know there a lot more to it but i have a good idea of these cars beings i started with these before my 99.I forget about some of the numbers but would that get me in the 370-400rwhp range.
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Old 10-03-2007, 04:18 PM
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Default RE: How much hp for a 331,347???

And i was worndering is there any heads that flow close to 300cfm for under 2 grand.I know thats where the horsepower is made lol.
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Old 10-03-2007, 05:08 PM
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r.barn
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Default RE: How much hp for a 331,347???

347 will make that power.

You need a good matching head/cam combo though.
I recommend a Canfield head and custom cam package from www.camshaftinnovations.com though.

Tell him you want it to spin to 6,500+rpm and it will come with
right springs and everything else from the start and make the power you want with no guess work.

Also check out www.fordstrokers.com he can put together a 475-500hp long block
for around $4k with above mentioned parts.
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Old 10-03-2007, 05:10 PM
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cammed99gt
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Default RE: How much hp for a 331,347???

Sorry one more thing guys the ones with a 331 or 347 if u could post your combo and your hp that i could get a good idea.

Thanks for the help guys,kev
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Old 10-03-2007, 05:11 PM
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r.barn
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Default RE: How much hp for a 331,347???

My 357ci with AFR 185 heads, compcams XFI cam (.579lift) at 10.3 compression
made 475hp at 6,000rpm on engine dyno
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Old 10-03-2007, 05:14 PM
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cammed99gt
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Default RE: How much hp for a 331,347???

ORIGINAL: r.barn

347 will make that power.

You need a good matching head/cam combo though.
I recommend a Canfield head and custom cam package from www.camshaftinnovations.com though.

Tell him you want it to spin to 6,500+rpm and it will come with
right springs and everything else from the start and make the power you want with no guess work.

Also check out www.fordstrokers.com he can put together a 475-500hp long block
for around $4k with above mentioned parts.
thanks man.I was thinking about s/c my car but i would like a projecton the side where i dont have to worry about breaking something or have to race to put in back together after tearing it down
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Old 10-03-2007, 05:18 PM
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Default RE: How much hp for a 331,347???

Both 331's and 347's can make 400rwhp if you want them too.

They both make similar numbers, with the 347 getting a little edge.
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Old 10-03-2007, 05:31 PM
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Default RE: How much hp for a 331,347???

ORIGINAL: 5spd GT

Both 331's and 347's can make 400rwhp if you want them too.

They both make similar numbers, with the 347 getting a little edge.
I know if u have the money u can get a lot over the 400rwhp but im on some what of a budget but i haveextra money evey month beings my wife finished her schooling and got a nursing job now (thank god)lol

I will proberly get a 347shortblock first with a big cam and high comp and call it a stock 302 with a cam and exhaust lol.Then a little later down the road put a good set of heads on it
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Old 10-04-2007, 06:21 PM
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Default RE: How much hp for a 331,347???

Sounds good to me!
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Old 10-04-2007, 07:05 PM
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Default RE: How much hp for a 331,347???

i would go with the new cnc trick flow heads and if you have any thoughts of very much nitrous of going with a lower comp and forced induction later down the road dont waste your money on the stock block. get a boss block. if you get a stock 5.0 put the cam heads intake and doyour supporting mods and do the short block last cause if you put stock heads back on that 347 your going to be choking it and will prob make better numbers with the mods on the 302 and then when all supporting mods are done you can swap short blocks. doing it this way you can do the mods gradually as you can still drive it also.
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