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Dec 4, 2008 | 10:11 PM

1999FirehawkLS1

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engine combs

Looking to put in a 6.0L. Wondering if i should use my 5.7 heads that cam with the car on the 6.0 block or should i use the 6.0 heads that org. come with that motor.......and can i use a ms4 cam in both my 5.7 and 6.0 when i go to swap it out?

Dec 4, 2008 | 11:31 PM

the_merv

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From: The Beach...

Long Tubes are a better buy..the MS4 will work fine with the 6.0l, what kind of Heads are on the 6.0l? If they are 317 Heads I would use them, just get them milled down to make the Chambers smaller..

Dec 5, 2008 | 08:06 AM

NVR_SPDS

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Cam should be identical, and if your staying with stock heads, go with the ones from the 6.0. They will probably be 243 castings, as opposed to the 241s or other casting from the LS1.

Dec 5, 2008 | 03:15 PM

1999FirehawkLS1

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engine q's

ya thats what i herd but dont 6.0 head have bigger cc size and that would drop compresson right?

Dec 5, 2008 | 05:23 PM

1999FirehawkLS1

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if 317 heads are what come stock on a 6.0 blcok than thats what they will be havnt bought one yet but plan on it...how much should be milled off?

Dec 5, 2008 | 10:20 PM

the_merv

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From: The Beach...

Usually the general rule I have heard it's .005" for one cc out of the Chambers. I don't remember what they are stock, I'm sure someone will have that number.

Dec 6, 2008 | 06:22 AM

NVR_SPDS

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Depends on which 6.0 it is i believe.. The 317 castings, i believe are the truck castings, close to the 243s just bigger chambers, for lower comp.. Nothing a light mill wouldnt take care of, from what ive read.