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Can a LS1 be stroked?

This is a discussion on Can a LS1 be stroked? within the Internal Engine forums, part of the LSx Technical Help Section category; Can you stroke an LS1 say like you can a 350ci to a 383 stroker and if so is there ...

  1. #1
    Junior Member g13ishop's Avatar
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    Can a LS1 be stroked?

    Can you stroke an LS1 say like you can a 350ci to a 383 stroker and if so is there a different name for it say like LS2 or LS3?

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    Rice Killa JwMonE99's Avatar
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    Yes you can, no same name ls1 or 383 stroker or ls1 383 stroker.
    requires a crank from a 400cid motor, block needs to be bored out .30 over and I belive rods need to be a 5.7 inch

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    Rice Killa JwMonE99's Avatar
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    BTW the LS2 and LS3 were different motors.
    The LS6 was the only one similar to the LS1

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    Member Benner's Avatar
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    bore and stroke it to a 408.

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    Just a slow Camaro KING Z28 HAWK's Avatar
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    JwMonE99 is correct

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    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by Benner View Post
    bore and stroke it to a 408.
    You can't without sleeving it.
    Which would make an LS2/LQ9 block MUCH cheaper.



    I don't recommend stroking the LS1. Wrist pin clearance issues.
    You can't really bore it .030" over either...without seriously compromising the block.
    Rods are the same length (6.125") in my 402 as they are in the stock LS1.

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    Asphault Cowboy dphillips1984's Avatar
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    just google "ls1 Stroker Kit"

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    Rice Killa JwMonE99's Avatar
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    Eagle has some very affordably kits, even cheaper on e-bay.
    Just stay away from SCAT parts

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    Senior Member slims00ls1z28's Avatar
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    Quote Originally Posted by JwMonE99 View Post
    Yes you can, no same name ls1 or 383 stroker or ls1 383 stroker.
    requires a crank from a 400cid motor, block needs to be bored out .30 over and I belive rods need to be a 5.7 inch
    Not really that is the formula for the old SBC which is entirely different in every aspect. That is the how you stroke a regular 350 (4" bore x 3.48" stroke) by placing a 400 CID (4.125" bore x 3.75" stroke) crank with a .03overbore. There is no 400 CID LS engine. The strokes on all LS engines 5.3-6.2L LS1/2/3/6/9 LQ4/9 etc are all 3.62", only the 4.8 and 7.0 are different. The LS7 is longer at 4.0" which is the size you need to make a 383. The LS strokers use a 3.9" bore (stock or "maybe" .010 over) , 4" stroke crank and, as Mr. Lous said, 6.125 rod. LS engines use smaller bore longer strokes to achieve the equivalent size such as the 4 x 3.48, 5.7 or 6.0 rod= 348 "350" SBC and 3.9 x 3.62, 6.125 rod =346 "350" LS1. If you could use a 400 CID crank (3.75") in an LS1 you'd go from a 346 to a 358.

    Bottom line OP yes you can stroke it and yes it will still be an LS1 stroker. Just buy a kit for an LS1 that has all the guesswork done that are all over the net.

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    Rice Killa JwMonE99's Avatar
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    Quote Originally Posted by slims00ls1z28 View Post
    Not really that is the formula for the old SBC which is entirely different in every aspect. That is the how you stroke a regular 350 (4" bore x 3.48" stroke) by placing a 400 CID (4.125" bore x 3.75" stroke) crank with a .03overbore. There is no 400 CID LS engine. The strokes on all LS engines 5.3-6.2L LS1/2/3/6/9 LQ4/9 etc are all 3.62", only the 4.8 and 7.0 are different. The LS7 is longer at 4.0" which is the size you need to make a 383. The LS strokers use a 3.9" bore (stock or "maybe" .010 over) , 4" stroke crank and, as Mr. Lous said, 6.125 rod. LS engines use smaller bore longer strokes to achieve the equivalent size such as the 4 x 3.48, 5.7 or 6.0 rod= 348 "350" SBC and 3.9 x 3.62, 6.125 rod =346 "350" LS1. If you could use a 400 CID crank (3.75") in an LS1 you'd go from a 346 to a 358.

    Bottom line OP yes you can stroke it and yes it will still be an LS1 stroker. Just buy a kit for an LS1 that has all the guesswork done that are all over the net.


    lol j/p

    But you sure do know your stuff

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    Member afattitude's Avatar
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    I have a question should I do a 393 stroker or bore is out to 4.125

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    whats wrong with SCAT parts?

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    Rice Killa JwMonE99's Avatar
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    Quote Originally Posted by 12gage View Post
    whats wrong with SCAT parts?
    They don't hold up too well and I think I recently heard there might be a lawsuit against them because they claim to never use recycled parts and its made out of the USA or somthing.

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