Connecting Rod Length
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Connecting Rod Length

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    Senior Member Can Am 75's Avatar
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    Default Connecting Rod Length

    What is the longest rod you can put in a 350 Chev? It can be any crank as long as it has a max stroke 3.500", standard deck height block. Is there a formula for figuring this out?

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    Quote Originally Posted by Can Am 75 View Post
    What is the longest rod you can put in a 350 Chev? It can be any crank as long as it has a max stroke 3.500", standard deck height block. Is there a formula for figuring this out?
    yes there is a formula

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    Senior Member jimclauss's Avatar
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    Quote Originally Posted by Can Am 75 View Post
    What is the longest rod you can put in a 350 Chev? It can be any crank as long as it has a max stroke 3.500", standard deck height block. Is there a formula for figuring this out?
    6.125

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    damn broken interweb what Jim said .......

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    Quote Originally Posted by Can Am 75 View Post
    What is the longest rod you can put in a 350 Chev? It can be any crank as long as it has a max stroke 3.500", standard deck height block. Is there a formula for figuring this out?
    You can spend extra bucks !!!

    Custom pistons and rods can be made

    Is there some special need to run a extra long rod ?

    I would stay with of the self parts if I could

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    Senior Member Can Am 75's Avatar
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    Quote Originally Posted by BigSteve View Post
    You can spend extra bucks !!!

    Custom pistons and rods can be made

    Is there some special need to run a extra long rod ?

    I would stay with of the self parts if I could
    I have an idea and I am pretty sure Jim Clauss can figure it out already. I know anything can be made, the pistons in my 500 inch Pro Stock motor are custom made for my bore, stroke and rod length. What do you think Jim is it worth it?

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    gn7
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    Quote Originally Posted by Can Am 75 View Post
    I have an idea and I am pretty sure Jim Clauss can figure it out already. I know anything can be made, the pistons in my 500 inch Pro Stock motor are custom made for my bore, stroke and rod length. What do you think Jim is it worth it?
    I can tell you straight out, if this is for a SE, your going the WRONG WAY!!

    I can't begin to tell you the power hiding in one of those things, and you aren't going to find it with some long ass rod.



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    is it really that important these days
    love my short 5.315 arms (on 3.4"stroke) in Windsor 8.2" block
    slug Compression hieght at 1.175" which gives rod ratio of 1.56
    run the piss out of it on road coarse and street with no issues
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    gn7
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    Quote Originally Posted by stoker2001 View Post
    is it really that important these days
    love my short 5.315 arms (on 3.4"stroke) in Windsor 8.2" block
    slug Compression hieght at 1.175" which gives rod ratio of 1.56
    run the piss out of it on road coarse and street with no issues
    Not only is not ALL THAT, but longer in some applications is a negative. If there was ever a reason NOT to use a rod that long, the SE class is it. If they are using the "HOLY GRAIL" of Se cylinder heads, its a double negative.



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    Last edited by gn7; 08-20-2013 at 10:50 PM.

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    steelcomp was here
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    Quote Originally Posted by gn7 View Post
    Not only is not ALL THAT, but longer in some applications is a negative. If there was ever a reason NOT to use a rod that long, the SE class is it. If they are using the "HOLY GRAIL" of Se cylinder heads, its a double negative.
    Go on...
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    Quote Originally Posted by Can Am 75 View Post
    What is the longest rod you can put in a 350 Chev? It can be any crank as long as it has a max stroke 3.500", standard deck height block. Is there a formula for figuring this out?
    A 1.0" pin height is about the shortest you'll find off the shelf which means with a 9.0 deck you could run a 6.25" rod. That's a 1.78 ratio. If this is for a higher rpm range endurance deal it's not a bad combination. I wouldn't see any benefit at all in spending more money on custom parts.
    If God is your co-pilot, change seats!
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