4.8 info

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Feb 13, 2009 | 09:19 AM

Tig

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From: Earth

4.8 info

I know the old saying " there's no replacement for displacement" but why doesnt anyone use GM 4.8s?

Are the specs different from the 5.3s and up?
Are parts from 5.3 and 6.0 compatible to the 4.8?

Thanks

Feb 13, 2009 | 11:46 AM

Andy1

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From: SoCal

The 4.8 uses a shorter stroke crank, different pin height pistons (but same bore), and longer rods. Block and heads are the same as the 5.3 (non L33).

Andy1

Feb 13, 2009 | 12:19 PM

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From: Seffner, FL

Lol I am still in the air about my motor being a 4.8 or 5.3 but I am hoping its the 4.8 for no reason other than being different.

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Feb 13, 2009 | 01:26 PM

Rodder

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From: Roswell, GA

Try a search--some people have used the 4.8L. Generally they cost about the same as a 5.3, get about the same gas mileage than the 5.3, and make less power than the 5.3... so most people go for the 5.3.