1984 c4
Thread Starter
3rd Gear
Joined: Apr 2023
Posts: 3
Likes: 1
From: North Carolina
1984 c4
I have a question. I have an '84 C4 and I want to do 2 things. First I'd like to have the motor bored and stroked to a 383 from 350. Second I'd like to get rid of the crossfire injection. How do i find a machine shop that is capable of doing the first for me and is it worth doing? And second, can I get rid of the crossfire injection by using the heads and intake setup from an '85 and up?
Zen Vet Master Level VII
Joined: Mar 2016
Posts: 5,218
Likes: 1,174
From: Southlake, TX
I have a question. I have an '84 C4 and I want to do 2 things. First I'd like to have the motor bored and stroked to a 383 from 350. Second I'd like to get rid of the crossfire injection. How do i find a machine shop that is capable of doing the first for me and is it worth doing? And second, can I get rid of the crossfire injection by using the heads and intake setup from an '85 and up?
No, a 85-89 had a different computer set up than the 84 cross fire, so it not "plug and play." There are several write up about people who have converted the CFI. Frankly, I'd look to keep the CFI. You can dial those in pretty well and there are power increase opportunities that do not involve ditching the whole system.
Thread Starter
3rd Gear
Joined: Apr 2023
Posts: 3
Likes: 1
From: North Carolina
A competent machine shop will be able to do your required motor work.
No, a 85-89 had a different computer set up than the 84 cross fire, so it not "plug and play." There are several write up about people who have converted the CFI. Frankly, I'd look to keep the CFI. You can dial those in pretty well and there are power increase opportunities that do not involve ditching the whole system.
No, a 85-89 had a different computer set up than the 84 cross fire, so it not "plug and play." There are several write up about people who have converted the CFI. Frankly, I'd look to keep the CFI. You can dial those in pretty well and there are power increase opportunities that do not involve ditching the whole system.
