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4.8 liter heads differences?

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4.8 liter heads differences?

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Dec 28, 2003 | 05:46 PM

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4.8 liter heads differences?

I heard that ARE has new 4.8 liter heads they are selling. Please no ARE bashing, try to keep this on topic. My question is what is the difference between a ported set of 4.8s verses 5.3s or LS1s? I always thought 5.3s just allowed a higher compression without as much milling as compared to normal LS1 heads. Do the 4.8s allow a even higher compression ratio with less milling?

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Dec 28, 2003 | 05:49 PM

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Quote:

Originally Posted by maddboost

I heard that ARE has new 4.8 liter heads they are selling. Please no ARE bashing, try to keep this on topic. My question is what is the difference between a ported set of 4.8s verses 5.3s or LS1s? I always thought 5.3s just allowed a higher compression without as much milling as compared to normal LS1 heads. Do the 4.8s allow a even higher compression ratio with less milling?

the 4.8's are the same as the 5.3's

and they all for slightly higher comp over the 5.7's without loss in pv clearance

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Dec 29, 2003 | 12:08 AM

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I'm not shure but the 4.8 are not the v6 heads?

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Dec 29, 2003 | 12:57 AM

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4.8 are identical to 5.3L. They will raise the compression to 10.8 to 1 without milling. That means more p to v clearance.

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