351 Mustang

gt 40 heads on 351?

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Old 02-20-2008, 11:07 PM
  #1  
racin66coupe
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Default gt 40 heads on 351?

can i do this? and what kind of power can i expect with stock rotating assy, victor jr mainfold and a fairly large carb or something along those lines? also, i have seen on ebay gt 40p heads, gt40x heads or something, but the point is, i have seen many different letters after gt 40
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Old 02-21-2008, 08:51 AM
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AdderMk2
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Default RE: gt 40 heads on 351?

240-260hp

get real heads
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Old 02-21-2008, 03:23 PM
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racin66coupe
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Default RE: gt 40 heads on 351?

only 240-260? the stock motor makes 220.. plus right now i dont have 1000+ for heads, so i was just wondering how much they would help with the stuff i listed. at least until i have the money to get some afr's
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Old 02-21-2008, 04:50 PM
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WhiteWindsor
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Default RE: gt 40 heads on 351?

Adder is probably pretty close. Those heads will not flow well but will be a slightimprovement since your running stock cam also. I think you will lose performance with a vic jr and a "big" carb with this set-up. The stock cam isn't designed to peform inrpm range that the vic jr doe's. With what you have now, including the gt-40's you should run something like a edelbrock dual plane with operating range of somewhere between 1000-5500 rpm's. A big carb will hinder your performance also. A good carb would be something like a holley 670 avenger, anymore right now will be too much.
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Old 02-22-2008, 02:19 PM
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Jay Allen
 
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Default RE: gt 40 heads on 351?

302 parts make 302 power.

Then when you get some "real" heads, be sure to search around. Not all heads are created equally.

Good Luck.
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Old 02-22-2008, 02:28 PM
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w8less
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Default RE: gt 40 heads on 351?

and not all valve jobs are. dont be so sure that the valve job that was done on the heads was done right
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Old 02-22-2008, 10:30 PM
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racin66coupe
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Default RE: gt 40 heads on 351?

i wasnt going to run a stock cam, not sure if i stated that or not. but i need something fairly cheap other than the crappy smog heads i have now
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Old 02-26-2008, 01:26 AM
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Default RE: gt 40 heads on 351?

210cc Pro Comp heads from The Mustang Depot (TMD) on Ebay are $699/complete
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Old 02-26-2008, 01:34 AM
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w8less
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Default RE: gt 40 heads on 351?

ORIGINAL: njserrano

210cc Pro Comp heads from The Mustang Depot (TMD) on Ebay are $699/complete
[sm=badidea.gif][sm=icon_rofl.gif]
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