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Thread: pushrod length

  1. #1

    pushrod length

    i am building a 406 sbc with .900 small base roller cam. i have .100 longer pushrods and i don't have an adjustable pushrod with the .100 longer pushrods the rockers are not touching valve tip the heads are AFR 210 AND I'VE TRIED 2 SETS OF ROCKERS AND BOTH SEEM TO NOT CLEAR THE RETAINER WILL THE LONGER PUSHRODS CORRECT THE ROCKER PROBLEM? WHAT LENGTH DO I NEED .150 OR .200 LONGER NOBODY SEEMS TO WANT TO TELL ME I DON'T WANT TO HAVE TO BUY MORE ROCKERS. I JUST NEED HELP ON PUSHROD LENGTH AND IF THAT WILL HELP WITH ROCKER ISSUE.ANY HELP THANKS!! using fel-pro 1034 head gaskets and 13.5 comp. forged pistons

  2. #2
    Senior Member RACING JUNKIE
    Join Date
    Jan 2006
    Location
    La.
    Posts
    2,890
    What size valve springs are on the heads :?: Also they probably came with .100 long valves so you may need .200 lg push rods. You'll $'s ahead if you just buy an adjustable pushrod for $15.00 and do the measurement, all cam company's sell them and so does Manton.

    JMO

    Zip.

  3. #3
    THANKS 4 ADVICE ZIP!! THEY HAVE 1.550 SPRINGS AND THEY DID COME WITH .100 LONGER VALVES SO YOU THINK THEY NEED .200 LONGER? LOVE THE MALIBU

  4. #4
    Senior Member RACING JUNKIE
    Join Date
    Jan 2006
    Location
    La.
    Posts
    2,890
    Thanks, i'm going to run it this weekend. .200 may work, but if they don't you're out $80.00 to $100.00, it's just a better investment to buy the adjustable push rod., and then you'll know for sure what length you need.

    JMO

    Zip.


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