347 with '99 LS1 block, what bore?

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Feb 27, 2013 | 09:34 PM

BlueBird346

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From: Oxford, AL

347 with '99 LS1 block, what bore?

I'm trying to build a 347. Can I do a 3.905 bore with a '99 block? Or will I have to do a 3.903?

Feb 27, 2013 | 10:50 PM

Burken01

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Im pretty sure you might be able to since thatll be .007 which is max on 98, not sure on 99's.. 01-02's supposedly can go .010 but I would PM a vendor on here and they will know more info..

also If the engine is out, a machine shop can check and see if your block can take it.

Feb 28, 2013 | 02:01 AM

PREDATOR-Z

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From: BFE

Bore as little as necessary

Feb 28, 2013 | 02:15 AM

bww3588

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From: Chillicothe/Lima, Ohio

.005 is max on 98-early 00 blocks..007 is max on the later ones.

Like pred said, hone as little as necessary. If it will clean up with a 3.903, run that. But make sure you have the pistons before anyone hones it.

Feb 28, 2013 | 11:05 AM

BlueBird346

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I'm sure a 3.903 will work. The engine is still in running condition in the car, nothing wrong with it. Just making sure I buy the right parts.

Will the liners handle boost/nitrous reliably?

Feb 28, 2013 | 11:30 AM

SNLPerformance

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Quote:

Originally Posted by BlueBird346

I'm sure a 3.903 will work. The engine is still in running condition in the car, nothing wrong with it. Just making sure I buy the right parts.

Will the liners handle boost/nitrous reliably?

They will take some abuse.... How much are you looking to do?