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gt40p heads

  1. 5.0L Tech
    I am currently in the process of this build and I want opinions on expected horse power. I am also interested in any ideas and changes you guys think I should do I am new to this thing. Thanks in andvance. Here's what I've got. 1. 302 block bored to 306. 2. Hardened rods and forged pistons. 3...
  2. Mustang Tech
    I'm building a 302 to go in my 1965 mustang and I want to put a set of gt40 heads on it. I read that the gt40s have some issues with long tubes which is something else I'd like to have. I also read that the gt40ps work better with long tubes vs shorty headers. Can any one clear this up for me...
  3. 5.0L Talk
    Hello, Im wondering if newer gt40p heads will bolt up correctly to my 68 302 block? Has anyone ran this set up before? If they do in fact fit, will I need to update the intake to efi as well? Im looking at these bad boys right here. Ford GT40P (pair) - $598.00 : Tri-State Cylinder Head...
  4. 5.0L Tech
    Hello everybody! I have an 87' foxbody that has more cosmetic and paint work into it so far then performance so now that she looks good time to make her go faster. But to my questions.... I have a 72' 302 .36 over block fresh out of the machine shop. It was magnfluxed, hottanked, decked, bored...
  5. 5.0L Tech
    hey, i just ordered new valve springs and im wondering if there are any cheap compressors for my gt40p heads. ive been lookin but they are either expensive or stud mounted...
  6. 5.0L Tech
    Ok i need to know what kind of springs and retainers and rockers that will work with the GT40P heads. I plan on using the XE270HR-14 camshaft.
  7. 5.0L Tech
    i can get some gt40p heads. do i need to do anything before i put them on or will they even go on.. i have a b cam. i am looking at 1.7rr but if not i will put 1.6.. need help with that.. or should i save my money and get trickflow, afr, or dart heads..
  8. 5.0L Tech
    i am looking into buying some gt40p cylinder heads for my 91 mustang and already have a cam ground out for .512 lift. i read some where that its max is .500 so im a little concerned. i would appreciate any feedback, thank you
  9. 5.0L Tech
    I recently bought some GT40P heads without pushrods off Ebay and I bought new hardened pushrods for them also. How do I install them? If I understand it right, I need to check piston to valve clearance. Do I need to crank it over until each piston raises and tighten down individually? If so...
  10. 5.0L Talk
    Hey guys, i am in the process of taking the engine out of my 1991 mustang gt. I have already bought most of the parts to put on the engine, i have gt40p heads, trick flow upper and lower intake, and a 80mm throttle body. I am sending the bottom end out to get rebuilt, and i was planning on doing...
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