We purchased the L20B, had the block bored 20 over, decked and crank turned 10 under. The head which was previously re built was checked over and given the thumbs up.
We plastigauged the main and rod journals as well as checked gaps on the new rings. They could have been an issue, had to file gap to spec.
As for the truck body my son and I completed the metal work (still have to do the box}. Hired an expert to do the final body work which keeps the sanding mess out of our garage.
As for the chassis, the differential is in with lowering blocks. Assembled the rear brakes and pressed in the new LCA inner bushings.
As for the rear breaks can anyone comment on the placement of the bottom smallest spring holding tension on the shoes? Not sure if it's hooked in the right spot. the reference material we have doesn't show it clearly.