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valve springs

  1. To Much Valve Spring?

    5.0L Tech
    Hey guys so i'm getting the last few pieces together for my H/C/I swap and i have a question about my valve springs. They are Anderson Ford Motorsport Hi-Rev springs part number: AF-HR-15018. The specs are 1.47" diameter, 1.800" install height Seat pressure 150lb @ 1.800", open pressure 450lb @...
  2. 1997 explorer 5.0 questions

    5.0L Tech
    I bought a 1997 Ford Explorer. It came stock with a 5.0, and GT40 heads. I'm looking to buy an f303 cam. With that cam, it requires to change the Valve Springs. I'm an apprentice Tech, So I'm learning as I go. If someone could tell me which Valve springs I need to go with, or any other...
  3. Valve spring replacement

    4.6L Talk
    I did a lot of searching and couldn't find anything on how to change valve springs and seals. Well I got in to changing mine and figured out how to make it really easy, the cams and timing have to be removed but that's not a big deal. Everything I have read says to air lock the cylinder or some...
  4. 1968 mustang 302 one cylinder doesnt fire???

    4.6L Tech
    I have a 1968 mustang 302 8cylinder that has a cylinder problem, the number three cylinder doesnt fire after a overhaul in the engine, but i didnt replace anything in the heads as in valves, valve springs, ect. Could this be the problem that there is a smashed exhaust valve?????
  5. valve spring compressor

    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. Need help with valve spring selection!!!!!

    5.0L Tech
    I need help determining which valve springs to use in my 302. It is a block and heads (e6se) from a 1990 Crown Vic and a stock 302HO cam and crank from a 1990 Mustang GT. I am using Sealed Power (#H273CP) pistons which do have valve reliefs. I know the e6se heads suck, but im on a limited...
  7. need to make cam choice

    5.0L Tech
    there are so many choices out there, at the moment i am leaning towards a comp cam. but im not really sure how much lift i need, or how much my motor can take w/o clearance problems. the set up: getting the block bored .030 gt40 heads (plan to have ported and polished) gt40 intake (off 96...
  8. Valve spring question!

    5.0L Tech
    ok so im doing a cam swap in my 87 5.0 ive never done a cam swap before and i have the whole motor apart ready for the thinking ahead and when i go to put the motor back together i remembered that my valve springs are going to have to be torqued down to a specific PSI and i dont know how...
  9. should i upgrade valve springs?

    5.0L Tech
    whats up guys, i just bought some afr heads and im putting them on my engine that has the trickflow stage 2 cam. afr says the springs are good up to .500 lift and the exhaust lift on my cam is at around .560 a machinist told me i dont really need to upgrade springs but i will get some valve...