6.0 stroker
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Joined: Feb 2014
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6.0 stroker I have a few questions but also want opinions. I just picked up a 6.0 iron block fresh from the machine shop. It is bored to 4.065 and is notched for a 4-inch stroke. I think this is pretty rare. I haven't heard of anyone else doing this to get 415 c.i. I bought it for a great price and it came with wiseco nitrous pistons. Please chime in and let me know what you think. Thanks in advance to everyone.
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I've seen threads on here saying iron 6.0 is safe @ +.03 & some saying +.06 if its sonic tested, rarely have seen +.065 but here is a recent thread on it.
https://ls1tech.com/forums/generatio...l92-boost.html
https://ls1tech.com/forums/generatio...l92-boost.html
Teching In
Joined: Apr 2013
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From: SE Iowa
Schwanke ahortblocks builds iron 376/415/427ci ahortblocks for dirt racing. I think Thompson motosports sells iron stroker with the same bore as well. Idk about the durability in a street application, but for track use I'm gonna say it would be fine...otherwise they wouldn't sell such a product.
Thread Starter
Registered User
Joined: Feb 2014
Posts: 26
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Schwanke ahortblocks builds iron 376/415/427ci ahortblocks for dirt racing. I think Thompson motosports sells iron stroker with the same bore as well. Idk about the durability in a street application, but for track use I'm gonna say it would be fine...otherwise they wouldn't sell such a product.
it's long been said that you want to keep the motor square for street use at no more than 4.030/4.060 bore and no more than 4.0 stroke. reason being the skirts in the LQ4/LQ9 iron blocks are shorter and the piston has issues "rocking" in the bottom of the bore with such a large stroke. even on a 4.030/4.00 (408cid) the issue exists to some degree but is within "acceptable" limits for "street" use.
