Quote Originally Posted by turbo4.8 View Post
go gen IV !!!! itll have 799 casting heads which are the same as 243 and are worth big bucks. the springs in them are good to .650 lift and the intake flows the exact same as the ls6. better engine IMO. thats why i bought a 07 to put in my 1988. oo yea u can make any trans work behind it with the right adapter. im putting a th400 behind mine.
correct about everything except the springs. the valve springs are standard truck springs only good to about .510 lift.