'73 2.0 Motor Purchased at an Estate Sale Options

[germaneighter]

It's been a long time since I've posted anything here. (My '74 has been in mothballs for many years, waiting for my retirement).

I was at an estate sale a couple of weeks ago where I purchased a '73 2.0 motor that was mounted on an engine stand. It looks to be a rebuild project. The heads look newly reworked. No rockers, tubes, or pushrods have been installed. (These parts were also included (new) along with most all required tin, fan, shroud and fuel injection.) #GA008920

The reason for this post: The oil galley plugs appear to have been soldered over then coated with JB weld. I've chipped the JB weld off some of them, only to be surprised by the solder. Has anyone seen this done? Any ideas on how to proceed?

FYI - I pulled a head to determine bore & stroke. It appears to be stock. Heads have been gone through and look like they were done well (just from visual inspection) They have new valves, springs, & guides and were bead blasted.

thanks

[Superhawk996]

Any markings on front of cam where it comes through the gear around the slot for the oil pump drive tang?

All the other markings that are cast in are for the generic as-cast cam billet. I don’t believe any of those will tell you how the cam was actually ground.

You can measure lobe lift (using v-block and dial indicator) and try to use that information to narrow down what the cam is.

If you have a degree wheel that can help you to determine more info on overlap to ID the cam.

If the plan is to run Djet fuel injection, I’d spend some time to figure out what the cam is since FI doesn’t like to stray to far from stock cam.

The idea that the pistons are cut for valve relief would be contradictory to a mild FI capable cam. I agree with Barefoot, those look more like a previous valve / piston collision than intentionally machined valve relief. You can see the cross hatch / sanding marks where it looks like they cleaned up previously displaced material from the collision. Inspect the underside of the piston crown for any signs of deformation / cracking beyond what has happened top side.

I would also spend a little time measuring piston skirts, etc, since pistons are previously used and potentially had a valve collision.

Measure rod bearing clearances for yourself.

The re-use of damaged pistons is a warning sign that this rebuild was done with thrift in mind and needs to be carefully checked. Cylinders reused? Rings look new?