Update...

The cooling system inlet is on the drivers side of the engine down low behind the alt. and is angled rearward and then has a cruved pipe to bring it around the alt. In my case the pipe ended 1/2" from the front upper control arm bushing.. no room for a hose.

So I shortened the inlet casting about 1 1/2" eliminating the pipe and will clamp the rad hose ontop of the inlet casting - using 2 clamps as there is no keeper ridge..

Engine and trans is now fully wired - abiet sans controller for the 4L60E - the software to run its not quite ready so I now have a manually shifted electronic transmission... using the shifter position switch to run 4 relays that drive the shift solenoids.. downside - no line pressure cutback so the shifts are going to be hard including engagement. Its a short term fix.

These engines don't have a dist. and the oil pump is driven off of the crankshaft snout so to pre-lube them you need an external pump. I was going to try using a grease gun - but decided to get a pump as I need to get this running for next weekend.

All the fittings are metric and one is a complete odd ball on the oil switch, 16mm x 2mm straight thread. So I have to make an adapter fitting from scratch using a 16mm x 25mm bolt - drill and tap for 1/8 npt.. add a seal washer and good to go.

More later.


51 GMC 4.2 turbo
Can't solved today's problems using the same technology/thinking that created them