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Oct 3, 2022 | 02:39 PM

rt338b

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363 Advice

Looking for input on anyone that has ran a 5.3 363 3.800 bore and how it was compared to the standard 5.3. I have a few blocks and was wanting to know the benefits or downside of using this combination with a borg s480. Really would like on hands thoughts of one versus the other as I have been using the 5.3 for a few years now and would like to know if they are in a happy spot running up to 20lbs. TIA

Oct 10, 2022 | 05:06 PM

blackdak318

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Don't really see the need for it. You won't have any issue spooling that turbo with 325" when set up correctly. Downside is the bigger crank is not a strong as the factory 3.622 crank. More cubes just means you're pushing the turbine harder and may run into the wall there faster.

Oct 12, 2022 | 05:29 PM

Pro Stock John

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I would keep the over bore minimal.

Oct 13, 2022 | 01:30 PM

blackdak318

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Quote:

Originally Posted by Pro Stock John

I would keep the over bore minimal.

Agree. 363 is a 3.800 bore with 4" crank. I just don't really see the need for a "stroker" in a turbo set up unless you care more about spool than total potential.

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