1954 OSCA MT4 1500 by Frua | Paris 2017 | RM Sotheby's What is the deal with the motor in this car. Any one know?
Yes, but I think the question is really about the following passages in the text: "...a new cylinder block was cast at Hall & Hall using an original block as a pattern" and "It is currently fitted with a Hall & Hall-built engine stamped to match the original with a correct cylinder head..."