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Re: LS3 heads versus LS6 heads?
Quote:
Originally Posted by 69CST6.0
Depends on your budget which way you go. The ls3 heads will give you more power but you will need a rectangular port intake and a aftermarket throttle body if going dbc. Also the cam splits are a lot more exhaust biased for the ls3 heads. BTW 799 heads are 5.3l truck heads, They are the same as the 243 ls6 heads minus the sodium filled valves.
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Be careful what you say as "truck heads" can be very confusing. Early 5.3's did not wear either version of the LS6 castings.
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------Motor---------------Bottle
60'---1.53---------------1.41
1/8---6.58 @ 105.92----5.87 @ 118.41
1/4---10.38 @ 126.97----9.24 @ 142.49
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