Oil pump doesn't appear to be the problem. Neither is the flywheel. Still searching.
How does this plan sound?
step 1- with bare block- check condition and position of cam bearings, hone cylinders(all expansion plugs will be replaced with brass plugs)
step 2- install crank, with new rear main seal,put existing main bearing shims back in place, check clearances with plasti-gage, install cam
step 3-install pistons and rods, checking clearances as with main bearings
step 4-install cyl head,lifters- back in the hole they came from,push rods,back where the came from, and rocker arm assemblies,side cover.
step 5-install flywheel and clutch
step 6-add externals, distributor, fuel pump, manifolds, water pump, balancer and alternator etc.
EVERY part will be cleaned and examined under bright lights, with at least on more pair of eyes and hands on.
Anything I'm missing? Thanks.

Last edited by tom c; 06/21/15 10:44 PM.