JohnnyBarnett1981
Newbie
hello all i have an '89 chevrolet heavy half 4x4 and the old tbi 350 started rattling the other day and i asked a couple of mechanics about swapping for a '96 to '99 vortec 350 not just the heads but the whole engine and i want to keep my tbi set up and they have all told me its a direct swap as i was sure of since a 350 is a 350 on the outside but i was wondering if the knock sensor was the same i also know ill have to get an intake for the heads that will accept the tbi...what will be the pros and cons of swapping to the later L31 engine instead of going back with an older style tbi engine?? i was told that the vortec 350 will be a power house with the tbi set updue to not being choked down with the later style computer