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6.0l truck heads?

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Old 12-28-2009, 01:06 PM
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Default 6.0l truck heads?

will any 6.0l truck head fit on an ls1? are 6.0l casting 317's?

if so does it matter what 6.0l truck they come off of???
Old 12-28-2009, 01:16 PM
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if its a 317 yes they will fit, or a 799 will fit also. Are you going to boost because the 317 have a 70CC chamber and will effectively drop your compression.
Old 12-28-2009, 04:01 PM
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yeah im going boost, does it matter what truck it comes off of?

Or is it that some 6.0 trucks have 317's and others have 799
Old 12-28-2009, 05:58 PM
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anyone?
Old 12-28-2009, 07:04 PM
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317 castings come off 6.0l lq4 & lq9 motors. and 799 castings come off of a ctsv if im not mistaken. but both will bolt onto a ls1 block
Old 12-28-2009, 07:07 PM
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Originally Posted by 99 Blue Bird
317 castings come off 6.0l lq4 & lq9 motors. and 799 castings come off of a ctsv if im not mistaken. but both will bolt onto a ls1 block
^^^^ 317 are off the 1500 and the 799 are of the caddy.
Old 12-28-2009, 07:08 PM
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799 is also on my L33 5.3L Silverado Z71.
Old 12-28-2009, 07:22 PM
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you guys are the GREAT thanks for helping, so let me get this straight TRUCKS came with 317 heads, and Cadillac cars came with 799 heads........
Old 12-28-2009, 07:40 PM
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And the L33 5.3L Trucks for the 799's.




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