kfactor239
Junior Member
- Joined
- Nov 6, 2013
- Posts
- 17
- Reaction score
- 0
- Location
- Moore, Ok
- First Name
- ken
- Truck Year
- 6
- Truck Model
- C30
- Engine Size
- 454
Ok the truck 87 4wd 4speed manual (k10/v10 im still confused its a halfton 4x4) started out its happy life with a tbi 4.3. Then one guy decided to put a 454 in it then that blew up so then they put this 305 from an 85 in with a quadrajet. I just got a killer deal on a 5.7 tbi and I want to put it in. The original ecm is still under the dash but the harness is whacked off at the firewall. I went to the junkyard today and got a good harness. I have read that I will need a 5.7 eprom but I have a 4speed with granny in this truck all the trucks in the junkyard are automatics. Will an auto eprom work? I hear that the flywheel on my 305 wont work on my 5.7 but will the clutch? Will the starter? Another issue is the exhaust manifolds on the 305 dont have any egr or o2 sensor. I was thinking of just welding an o2 sensor to my downpipe but will it run without egr? Looking at the truck that I stole the harness from today those egr exhaust manifolds look like a pain. I want to put headers on it eventually how does egr work with headers. This is my only transportation right now the old 305 is smoking pretty bad and I want all my ducks in a row when I do this engine swap. I cant be waiting on stuff. Please help!!