My friend recently purchased a 1970 38 Bertram flush deck model with diesel engines. Unfortunately after about 7 hours of engine operation one of the engines has completely failed. My question is whether he would be better off re powering with Crusader 454's rather than trying to repair the one diesel engine or what alternatives make sense. His mechanic said a replacement was approx $60,000 and that is only one engine. The mechanic has not been able to provide an estimate to repair the engine but the damage sounds severe. Unfortunately, its a low budget boat used on the great lakes as a condo for our short 2 month boating season. Engine hour meter is approximately 3,000 hours, the boat has probably sat for years with little use other than marina idleing which probably contributed to the engine problems.