70’ 340 casting mark or not ?
Quick question - trying to identify the significance of a mark across couple of cylinders (the large X) . I searched everything I can think of and while I found few other with similar mark, I haven’t found an explanations. Block mag’d and sonic tested with good results so just curious at this point.
Block was cast in Aug 70’ for 71’ model year.
Quick question - trying to identify the significance of a mark across couple of cylinders (the large X) . I searched everything I can think of and while I found few other with similar mark, I haven’t found an explanations. Block mag’d and sonic tested with good results so just curious at this point.
Block was cast in Aug 70’ for 71’ model year.