Thanks all for the feedback. I'll be putting it on the chassis dyno later in the summer after I get the bugs out of the truck.

This is step one of the build, its real basic as I have other items that will need attention, the engine is going into a '53 GMC that has been front clipped and a whole lot more - so I needed to keep the engine as simple as possible while not precluding adding power later.

Once the truck has been sorted out then step 2 is to convert it to TBI.

Step 3 is next winter when I'll build the multiport efi manifold and turbo header.

Goal is to run 10 to 12 psi, in preperation for boost I did a partial blockcrete fill on the block
- comes about 60% of the way up the water pump opening. To combat the lack of water jacket cooling I'm adding a decent size liquid to air oil cooler with a thermostatically controlled divert valve that opens at 180 deg F.

Now back to the shop.... rotating assembly needs a few final touched before putting the oil pan on.... Putting the cam gear on was a real PITA - needed an extra set of hands that didn't show up... used a heat gun to get the gear hot and it still needed to beat on with the deadblow hammer..
The gear was hot enough to start smoking the grease on my thick arc welding gloves... someone asked me if I was going to degree the cam in... same "help" that didn't show ..


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