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  1. #1

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    Flywheel bolt grade 8 vs ARP

    From my readings it shows grade 8 only being at times 100 to 150 lbs per in lower than ARP bolts

    What are the bolts that come stock on fly wheel ?

    Is that really such a big difference I mean if I was going to do the upgrade I'd rather go with SAS bolts rather ARP that is 400 lbs pi more than grade 8 any thoughts


  2. #2

    Flywheel bolt grade 8 vs ARP

    Quote Originally Posted by meinstein1987 View Post
    From my readings it shows grade 8 only being at times 100 to 150 lbs per in lower than ARP bolts

    What are the bolts that come stock on fly wheel ?

    Is that really such a big difference I mean if I was going to do the upgrade I'd rather go with SAS bolts rather ARP that is 400 lbs pi more than grade 8 any thoughts
    100-150 x 6 bolts @ 8500 makes a huge diff , arp bolts are not that expensive and have broken also . Search it has happen with arp also.

  3. #3

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    So should I find sps bolts instead

  4. #4
    Quote Originally Posted by meinstein1987 View Post
    So should I find sps bolts instead
    With abuse and neglect and time anything will fail , if you are stock then you don't need them if you are planning to beat it like u stole it then it's cheap insurance .

  5. #5

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    I know I am doing it over at frenchy place. I think I'm pushing my luck as I've had about 30 hours at 8600 rpm on stock bolts with 2 sheared drive shafts so I'm doing it now as I feel my luck is running thin lol

  6. #6
    For sure.

  7. #7
    quiddo15's Avatar
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    I'm at 70hrs on my 300px swinging 8650rpm+ on stock fly wheel bolts.
    But i have blown one head gasket and split a thermostat hose.

  8. #8
    mrsprinkles's Avatar
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    Quote Originally Posted by meinstein1987 View Post
    So should I find sps bolts instead
    Let us know what you find. I bought the arp bolts, but if there is a higher quality bolt i would rather go with the stronger of the two. Unless weight is an issue.

  9. #9
    imp0ster's Avatar
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    I used titanium, and reused titanium. Bought them from pro bolt. People said I couldn't use Ti but I've never had one issue. I also posted the maths on the bolt vs OEM then people became quiet


  10. #10
    mrsprinkles's Avatar
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    Quote Originally Posted by imp0ster View Post
    I used titanium, and reused titanium. Bought them from pro bolt. People said I couldn't use Ti but I've never had one issue. I also posted the maths on the bolt vs OEM then people became quiet
    Do you have a link for the bolts you used? Also where did you make that post?

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