"Oldsmobile Diesel" Conversion to gas

[JBswth]

I'd also agree with trying to get it running as-is and go from there. Junkyard Digs on YouTube has revived several Olds diesels with pretty decent success. If it's still a healthy engine, like others have said, add a water separator and roll on. You'd have a cool, unique pickup that'll get fantastic mileage even if it's slow.

If the motor turns out to be junk, no harm no foul at that point. I'd try to find a big Delta-88 or something and pluck the 455 out of it

And, since his motor vehicles department will think it is still a diesel, he can remove all the smog junk and set it up like the 1970 455, except for compression. He will have a hot-rod truck, especially if he puts tri-power or dual-quads on it!

 

[AuroraGirl]

A NEW 1/4" LONGER BEARING CAP BOLT P/N 22511818, IS REPLACING P/N 392190, FOR BOTH GAS AND DIESEL CYLINDER BLOCKS. ALL (10) HOLES IN THE DIESEL BLOCK HAVE A 1/4" DEEPER TAP AND A 1/4" LONGER COUNTER BORE. THE GAS BLOCK HAS THE DEEPER TAP AND COUNTER BORE AT NO. 5 BEARING CAP LOCATION ONLY. THE CHANGES BEGAN WITH THE 1981 START OF PRODUCTION