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Old 01-05-2015, 09:02 PM   #1
Join Date: Oct 2014
Vehicle: 1987 ford mustang
Location: washington
Posts: 23
Default gt40p heads

i hope im in the right forum now. i have a 1987 5.0 mustang. i have done alot of the bolt on upgrades. i picked up a set of gt40p heads and i have ford racing beehive springs for them. will this be an instant upgrade?? if so what will i gain??
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Old 01-09-2015, 05:31 PM   #2
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Join Date: Jul 2012
Vehicle: 1990 lx hatch 5.0
Location: ohio
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What do you mean instant upgrade? Heads alone will gain you about 15-20 hp, if you get the gt40 style intake to go with it, then possible you could see 20-30 hp gain.
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Old 01-09-2015, 05:59 PM   #3
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Vehicle: 1995 mustang GT
Location: Jersey
Posts: 10,611

LOL I guess you didn't like the answers you got in the 5.0 section. And it's still a lot of work for 25HP.
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Old 01-10-2015, 05:34 PM   #4
Join Date: Oct 2014
Vehicle: 1987 ford mustang
Location: washington
Posts: 23

I just wanted to make sure i was truly making an upgrade before i did all the work. Thank you for the responses
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Old 01-10-2015, 05:34 PM
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