Putting a DOHC Cobra motor from a 2001 Cobra in my GT. The car is an auto gettin built up with Jerry mods. Im lookin fo rthe car to go into low 12's (daily drive). thinkin of stayin all natural. Thinkin 4.30 gears, 3500 stall torque converter, P/P heads. lookin at cams. what else will I need to do to the engine?
i would say L/T's h-pipe.. good cat-back, possibly a CAI and U/D's and you should be there if not hit 11's on a good launch... just depends on how you drive it, i mean you can have a blower and run 14's, it's pretty much in how you launch (i.e. 60ft. time) but i would say mid 12's for sure with the other mods you listed.. good luck
Sorry, I should have elaborated earlier. If you're going to run the stock longblock untouched, then you'll need a higher stall--probably higher than you'd want in a daily driver. If you plan on tearing into the motor (ported heads, ported intake, cams) you might not need as high a stall.