TAM engine from Tacoma Wa.
had no provision for PCV or road draft.
looks like piston broke at wrist pin and rod went thru block.
no ridge in cyl to feel with fingernail, heads are clean and even the journal on the crank does not look real bad.
very low miles before this happened.
That one grenaded so hard that it actually broke one of the counterweights off the crank. 
