Zach Mccarthy

To start off i have an 04 GTO. i am wanting to do a lm7 swap and build the motor. i want to be around 500hp all motor. i dont have a budget but i'd like the build to be decent price. Im wanting to forge internals, dont know if i wanna bore it, i wanna change heads and get them milled, arp studs, change tb and run bigger injectors. Really wanting to achieve around 500hp (not too the wheels) and not spray.

tech@WS6store

iTrader: (2)

Youll need more than 5.3 liters to get there. An ls1 bore would get you there with a much smaller cam. Lookin at the mid range cams like our high lift asa cam and 243 or ported heads.

codyvette

iTrader: (24)

Turbo and enjoy

thompson

iTrader: (4)

If you bore to a 5.7 with CNC ported 243/799 heads you can get there as long as you have free flowing exhaust and intake. I can put a long block together that will do it for you for $5097, If you have Headers and an LS6 intake(you should if you have an 04) it will make 505 FWHP.