RareCoinsGuy 2 Report post Posted August 20, 2018 Good day! I have recently been given a non-running 1995 Lumina 3.1l. At the moment, I suspect the intake manifold gasket has given way to overheating and water entry problems. I’m wanting to put a later 60° engine but unsure what to do to wire the car for OBD II 1 Imp558 reacted to this Share this post Link to post Share on other sites
Imp558 4,384 Report post Posted August 21, 2018 Welcome, L67/4T65e is well documented and a ton of fun to drive if you're open to it 1 RareCoinsGuy reacted to this Share this post Link to post Share on other sites
digitaloutsider 1,637 2 Vehicles Report post Posted August 21, 2018 3400 swap is stupid easy, I don't think you even have to really do much of anything to make it work. There should be some guides on 60DegreeV6 to cover it. I'd ask Saar, but he seems to be MIA these days. 1 RareCoinsGuy reacted to this Share this post Link to post Share on other sites
digitaloutsider 1,637 2 Vehicles Report post Posted August 21, 2018 Oh, and welcome! 1 RareCoinsGuy reacted to this Share this post Link to post Share on other sites
RareCoinsGuy 2 Report post Posted August 21, 2018 3 hours ago, digitaloutsider said: 3400 swap is stupid easy, I don't think you even have to really do much of anything to make it work. There should be some guides on 60DegreeV6 to cover it. I'd ask Saar, but he seems to be MIA these days. I’m inclined to rebuild a Series II L67 now tbh. I want to convert the car to OBD II 1 Imp558 reacted to this Share this post Link to post Share on other sites
Imp558 4,384 Report post Posted August 21, 2018 Pick up an 80,000 mile L67 and it won't need much, a rebuild isn't all that necessary unless you get one that's very high mileage. Share this post Link to post Share on other sites
RareCoinsGuy 2 Report post Posted August 21, 2018 14 minutes ago, Imp558 said: Pick up an 80,000 mile L67 and it won't need much, a rebuild isn't all that necessary unless you get one that's very high mileage. Should I rebuild the 4T60-E or look for a 4T65-E HD Share this post Link to post Share on other sites
digitaloutsider 1,637 2 Vehicles Report post Posted August 21, 2018 I guess that would depend on how wild you want to go with the car. If you want it to mostly remain stock, you could very well get away with keeping the 4T60E, but then you're limiting yourself to PCM options that can control it. IMHO, I'd grab the wiring harness and PCM from a 98-01 3800 Lumina and go that route. Then add your own 4T65E and 3800. Or just pull the entire powertrain from one of those cars and top swap it later. Share this post Link to post Share on other sites
Imp558 4,384 Report post Posted August 21, 2018 4T65e -HD is easier, and a better transmission. You have to cobble CV shafts though but it's a hell of a lot easier than dealing with the PCM. Start a thread for the car in Members Rides to keep everything in one place. Share this post Link to post Share on other sites
