We have a customer that broke a connecting rod and only one cylinder head is salvagable on his engine. We haven't had any luck finding a core and I was wondering if anyone in here knew if he can switch to an iron block from an f-150 or if someone here had a core we could purchase for him. The only options we see are overpriced high mileage used engines we don't want to pay $3000 plus rebuilding it. Thanks for any help you can throw our way.