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Re: LS1 Question
It depends on your goals and your budget. The 6.0 came with iron heads in 99, there is a 6.0 lq4 and lq9 that was an iron gen III motor with 317 aluminum heads. If you want better power, you can go with aftermarket heads, port and polish the 317 heads (if this is what you have), or go with the 243 or 799 aluminum heads found on the ls6,ls2,ls4 and gen IV 5.3 motors. I am running an ls1 aluminum 5.7 stock bottom end with 243 heads. I have $1000 in my heads plus $250 or so for trunnion upgrades on the rockers, Lunati dual valve springs $275, comp cam pushrods $100...
but another important thing to support the cam is the transmission and stall converter.
You wont be happy with a cam without a stall convertor to support it if you're running an auto trans.
I'm using a 4l80e with a 3600 Circle D torque convertor. I have a thread if you want to see some of the parts I'm using.
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