I have a 1934 Mercedes 500k "Tribute" with a 350 crate chevy engine block numbers on back are 10066036 also a few inches away are the number 98 my dip stick is on the passenger side of motor do you have any idea what year motor it is. From that casting#, seems to be 350ci 1986 or newer. Possibly it was reconditioned and installed in my car in 1998. Docs show it is a 250HP. I am interested in determining the compression ratio. It is probably stock but fitted with​​ a FiTech fuel injection sitting Edelbrock Performer Chrome Intake Manifold.

10066036 86-up 350 Car & Truck 2 & 4-bolt Passenger stick 1-piece seal

It is being transported to me right now. When I sort it out, mat be interested in adding a few more engine goodies.