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few questions about my build

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Old 09-05-2010, 03:12 PM
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Default few questions about my build

im pulling a 6.0l out of a 00 sierra and putting in a 98 ls1 motor.

the truck has the iron heads on it, i dont see a number on them but asuming 317?

i was gonna put those heads on the ls1 to keep compression down so he can keep running 87 octane.. so will this work? do i just use stock ls1 head gaskets? or are those heads designed to work only with the 4" bore?

is there anything else i should know about doing this?
Old 09-05-2010, 07:53 PM
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you dont need to change compression to run 87. a tune would fix that
Old 09-08-2010, 10:08 PM
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its not my truck.. im not trying to get into a tune. im just trying to get it to be like stock with very little money in it using what i have




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