I'm sure that you could use you internal parts with the L27 Block and crank.... But, understand that taking pistons from another motor that already have wear on them and installing them into another block will only create more wear... As well those rods that had spun bearings will have to be resized..

Have any of the pistons punched the head or left a mark on the head / piston? This could be bad news for the wrist pins and the pistons...

As well if you do use the L27 block you will want to remove that crank and have it turned to ensure that its perfectly smooth and within specs.. If the crank is in good shape than say have it cut .005 under and go with .005 oversized bearings...

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The plan is to take out the pistons of the L27 and have the bores gone over to knock the glaze out. Re-ring the L67 pistons as I am sure they have seen better days, plus get me back to original compression specs. At 90k, I doubt the L27 heads need attention but I will know more when they come off. I do know the L67 heads I have had seen MUCH better days, and would say they are good for nothing more than core-outs. (EDIT: No, the pistons didn't strike anything on the head that I pulled, I think I am all good there). The crankshaft I will have spec'd before I have any machine work done on it, and same with the connecting rods (though 2 bearings spun, I am only concerned about one of them needing attention, and if it is out of spec, I know where I can go get a few pistions in Orlando that are w/in spec). I also discovered a HUGE crack in the radiator-side exhaust manifold, but I can have that welded right up here at work.

I have, at the most, 3 months at the shop that the car can stay, as the owner will be away for 4 months, and the techs there are more than willing to work on my car for a few bucks straight to their pockets, plus I can go up there on my days off of work and check on progress. So I have alot of control on what goes into this motor and time can be taken to make sure I won't have to do this again for a long time to come.