whats the biggest bore on LSX block with FI

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Jul 7, 2008 | 11:12 PM

jeremym

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From: Arlington Tx

whats the biggest bore on LSX block with FI

If I go lsx block route what bore can I do with a FI set up and what cube would it be using a 4.0 stroke crank. I want to run 16psi using a F1A

Jul 7, 2008 | 11:46 PM

TINKRD

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From: DFW

jeremy, go turbo or go home. wouldnt it be nice to just turn the boost control up instead of having to change pullies. you also wouldnt have to worry about belt slippage either

Jul 7, 2008 | 11:50 PM

TINKRD

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From: DFW

also jeremy when it comes to FI you dont have to have HUGE motors in order to make good power, especially not w/ a street car in mind like yours.

standard bore is a 4.125 and a 4.00 stroke you'd be at a 427ci

Jul 8, 2008 | 07:37 AM

ls1290

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I think the LSX block can go to 4.2" bore, but I might be wrong. Check the Internal Gen IV section for sure. If it can go to 4.2", it would be a 443 CID with a 4.0" crank.

Keith

Jul 8, 2008 | 08:48 AM

Pro Stock John

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I believe that the TSP drag C5 is a 4.125 bore or thereabouts.

I know in talking with Josh and Wormery at LMR they like a 4.030 bore so that you leave some room for the future if you need to take out the motor a bit more.

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