Quote Originally Posted by robot View Post
First question is "how much are you wanting to spend on a 1994 truck?" Putting an OBDII engine in it would be pretty expensive and would offer little advantage over what you could install that is non OBDII.....OBD (on board diagonistics) monitors the sensors and reports conditions that are out of range for the event. Why do you need it?

You could install an el cheapo rebuilt engine...or rebuild the existing engine. Either would reuse the existing fuel and electrical systems.

You could install a GM crate motor....a true "crate engine" not a rebuilt engine that is mistakenly called a crate motor. The GM engine is all new. There are many versions to fit the cost and horsepower needs of the buyer. If your existing truck is a TBI truck, you can install a carbureted engine relatively simply....you need to add a fuel pressure regulator to drop the fuel pressure to 6psi or so. Do a search for GMPP or GM performance parts and see what they have. Summit sells GMPP crate engines I think.

I would recommend not buying an engine that the mechanic is pushing unless you can have an independent third party look at it closely....The mechanic seem to be looking out for his buddy with an engine for sale....not necessarily in your best interest.
The OBD-II would be a "nice thing to have" if I have the choice. I'm willing to pay more for this feature, but I'm not trying to create any headaches for myself. I had looked at GMPP last night, and it seemed that the cheapest 350 they have starts at around $2000...and that's probably a bit more than I'm willing to spend just to get the thing running right now. Thanks for the details and the tip on having someone else look at the suggested swap.

Quote Originally Posted by jerry clayton View Post
what kind of issues???
Yeah...didn't really want to get into that, but here goes: oil pressure was gradually dropping very low, intermittently, especially while at a stop. Topped off the oil which seemed to fix for a couple of days, then gradually got worse than it already was. Final day of operation I started hearing a knocking sound, so I stopped driving it and towed to the mechanic. I started it up on a cold morning at the shop and it was clacking very loud. Mechanic drained the oil pan and cleaned the screen. Said that he wanted to replace the cam shaft and bearings..at first. Then came back and said that he didn't want to charge me hundreds of dollars to change that stuff out because he couldn't guarantee that it would last 2 months or 2 years. That's when he suggested an engine swap.