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Thread: 4.5 stroker
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Old February 25th, 2014, 11:17 PM   #30
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I have done a huge amount of research on strokers, assembled one and I can tell you there is a lot of misinformation and second hand knowledge out there. There are also a lot of poorly built but still running strokers from what I have gathered. The biggest issue you will have is compression ratio. To get proper quench, you need to mill the deck of the block, which raises CR. Too high of a CR is what necessitates higher octane fuel. Basically you have two options to lower your CR. First is custom pistons, I believe Keith Black makes a set, second is having stock pistons dished deeper. Most people don't dive this deep into the build, build a motor with crappy quench and end up unhappy. If you have questions go to and start reading...more info there than you can imagine, most of which I've forgotten.
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