Fast rebuild?
a link to the rebuilt slant listed at .org
the seller is a reputable and knowledgeable slant six guy
(335) Sub-500 mile professionally rebuilt slant six, $1,000 obo Tacoma, WA you haul - Slant Six Forum
did a mapquest rout check from Sacramento CA to Tacoma WA.
11 hours - 700 miles each way.
For a day in a rented truck and 1400 miles of highway drive time you will have a rebuilt slant six. You could probably buy the motor for less than the asking price.
For quick turn around to get back on the road quickly, this is probably the best solution.
dirty white boy is correct in that for a first timer on engine work will not be quick.
My advice after pulling wrenches for 25+ years is to buy the rebuilt engine and install it. You do need to determine what caused your engine to overheat in the first place so the same does not happen again.
I overheated my '40 Ford Fordor with a '66 289 when the electric fan quit and I had been on the highway. Stopped at A&W and the drivethru was really slow. The rings lost tension and the blowby pushed the rubber seal out the back of the intake manifold and oil would leak out and down over the transmission.
Now for the cooked slant, dismantle the engine. At least get the head off to inspect the wear on the cylinder walls. This will require measurement with an inside micrometer or snap guage and an outside micrometer. For this I highly recommend getting help.from a friend that REALLY knows mechanical stuff or a local car club. If the cylinder wear is minimal, you may be able to get away with reaming any ridge at the top, a light deglaze hone of the cylinders and installing new rings. Ring end gap measurement in this case should be 2/3 to 3/4 down the bore where there is little wear. Also the ring groove clearance must be measured as the ring grooves (lands) can be worn.
If you have to bore the block and have the valves and seats touched up, drill a 2 × 4 almost through with 12 holes to hold the lifters in order so they can be put back on the same cam lobe they previously rode on. This may be the time to think about stepping up the cam to a mildly more performance cam. Remember though that a new cam requires new lifters and that requires breaking in the cam at 2000 to 2500 RPM for about 30 minutes on the first start. The timing needs to be real close so you do not have to crank it over a lot before it starts.
Again, if repairing or overhauling this engine, get experienced help to guide and teach you. Buying some pizza and beer goes a long way to a car guy education and maybe new friends.
