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#1
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How do I know if I need a shorter than stock timing chain? If I do need one, how do I know how much shorter it needs to be?
My block's been line-honed twice and while the shop that did the work swears the crank centerline shouldn't have moved more than .002" - .003", I'm a little leery. I'd like to reuse the chain from my 400 if at all possible. Thanks, -Will
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---------------------------- '72 Formula 400 Lucerne Blue, Blue Deluxe interior - My first car! '73 Firebird 350/4-speed Black on Black, mix & match. |
#2
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How do I know if I need a shorter than stock timing chain? If I do need one, how do I know how much shorter it needs to be?
My block's been line-honed twice and while the shop that did the work swears the crank centerline shouldn't have moved more than .002" - .003", I'm a little leery. I'd like to reuse the chain from my 400 if at all possible. Thanks, -Will
__________________
---------------------------- '72 Formula 400 Lucerne Blue, Blue Deluxe interior - My first car! '73 Firebird 350/4-speed Black on Black, mix & match. |
#3
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I guess if its loose - I can't tell you how to measure crank centerline distance whcih would probably be the most accurate way to determine what you need. My 428 was line honed twice also and I now use a .010 shorter Rollmaster as recommended by Rick Johnson who did the work on the motor over last summer. A standard Cloyes was flapping in the breeze after a few miles.
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#4
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I use a .004" shorter JP Billet timing chain set. Fits perfect w/no slop in the chain at all. Like RPM said, just check yours if loose. Good Luck w/yours.
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#5
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Thanks guys, the general consensus seems to be one of trial and error. Oh well...
The chain that was on my 400 is a Dynagear true roller. Saw 1500 miles in my 400 and was just as tight when I took it off as it was when I put it on. Guess I'll just have to try it on the new motor and see what happens. -Will
__________________
---------------------------- '72 Formula 400 Lucerne Blue, Blue Deluxe interior - My first car! '73 Firebird 350/4-speed Black on Black, mix & match. |
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