Type M64/23, 1996 C4 USA manual
Hostory: This engine was installed in a 1984 811 targa about 10 years ago by a shop in Maine. The owner later bought a happy crab exhaust from me. in the early spring, he contacted me wanting a 3.8 and because his motor was leaking, mainly from the valve covers, but nonetheless leaking. I built him a motor based on a core I had and got his motor in exchange. That was early may. The case has not been cleaned yet but all was happy.