Quote:
Originally Posted by 1tonchevy
Thanks for all the info and the help. I'm thinking i will tackle this project, i may go look at the donner truck i found in the bone yard and look and see if all the wireing is all still there might be easier to swap the engine and dash harness? so i can keep my T400 trans just need the converter from the diesel.
I don't plan on towing anyhting but if i do it will only be my car trailer that can only fit small to medium vehicles.
I'll take pics and keep everyone posted to the progress (will be a long adventure) as i want to buy the motor and tear it apart an re seal it and make it new before installing it.
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I tow an 18 ft trailer with cars on it all the time, with no problems. And I don't have my turbo or overdrive transmission yet, either. Just watch your gauges, especially temperature.
You can keep your TH400, as long as the donor truck has a TH400 in it. If it's a 700r4, the torque converters will be different. BUT, if it's a 700r4, get the entire set up. It's better than a 6.2 / TH400 anyway. Better low end response and overdrive on the top end. It's a bit tricky to get the transmission wired in though because of the lock up torque converter on 700r4's. Or, you could always send me the complete 700r4 set up and I'll send you my torque converter for a TH350/TH400...
Don't worry about swapping the entire wiring harness; it really is super simple. You won't have any wires left dangling or un-used. There's 3 wires on the injection pump: 1 is the power wire where your power to coil wire goes, and the other two are wired into a single feed coming from the starter and a sensor on the passenger side of the block for the cold start "fast idle" solenoid. You don't need to hook those up. The alternator wires in exactly as your SBC does.
You WILL need 2 batteries. Grab the secondary battery mount out of the donor truck while you're in the junkyard. I use 2 Red Top Optima 1000cca batteries in mine.
If you do re-seal the engine like you suggested you might (highly recommended) don't forget to have the injectors cleaned and rebuilt. And, get a new harmonic balancer. It'll save you a huge headache in the long run.
IMPORTANT... I completely forgot about this until just now. Get brand new starter bolts (they're a metric thread, but you can get them at any auto parts store in the self help aisle). I snapped one off inside the block and had a hell of a time drilling it back out. They stretch over time and weaken.