I have an 89 ram with 318 & tbi. I'm trying to get away from EFI and EGR. I have the opportunity to get heads, intake, and 2 barrel carb from a '68 318. Anyone know if they're interchangeable?

 

you would also need other parts like a wiring harness and a distributor for a carburated engine. i don't see why you would need to swithch the heads. i think all you would need is to switch the intake manifold.

 

I wasn't sure if they were different being EGR versus the older non EGR. I have access to a 100% complete 1968 318 with a bad block, so good top end and distributor, etc.

 

i just rememebed that you will also need some type of fuel regulator to lower the fuel pressure for the carb. i don't know if the wiring harness out of the 68 would work for 89. that would be a lot of custom wiring. it might me easier to find a wiring harness from 87 or so dodge ram that does not have a computer.

 

87 does have a computer behind the left headlight.

 

not all of them. there were 2 setups. there was the computer setup then there was the non commputer setup. the non computer setup has the vacuum advance. i figure he is trying to get away from those stupid computers.

 

I'd go ahead and get that engine. Heads aren't going to do you much good, no hardened valve seats, but if the pistons and rods are good, get'em. As they are a free floating rod and the pistons are a 9.2-to-1 compression, compare that to yours. Now, all you need to find is aset of 340 X or J heads and the steel crank, it will all work, and get a four-barrel intake, and mild cam. That will wake up some horsepower.

 

It's possible that the 68 318 would have a steel crank, I know the 67 did for sure. 68 intake will fit on the 89 engine. Might have to block egr somehow.