Welcome to the web site of R & L Engines. The V-8 Flathead Ford rebuilding experts from mild to wild. R&L Engines expertise includes rebuilding all early Ford Flathead engines from Model A, B's, T's and V8 Ford Flatheads from 1932-36, LB's, 59A's, 8BA's,V8 60's, Ford and Mercury. An engine core charge is a deposit that you pay when buying a completely remanufactured engine and serves as a placeholder for your old engine. Once your used engine is shipped to the supplier, they refund the cost of your deposit. If you don't send them your stock engine, they will use your deposit to buy an engine to rebuild.