Originally Posted by SNK3BTE04
Because the 99-01 had the aluminum block which was replaced in 03/04 cause of the increased power FYI.
Aluminator motor came out after the 99-01 cobra and any early Teksid block is an awesome block to have. They are extremely strong when prepped properly and can handle pretty much anything you throw at it.
---------- Post added at 01:12 AM ---------- Previous post was at 01:05 AM ----------
also you will have to changed the crank because it isn't a forged piece like what comes in the cobra's. As for the block itself though, very strong piece to start with. 04 heads and timing set should work with it to, will need an 01-up intake though.