Riley77777 Posted January 15, 2006 Share Posted January 15, 2006 The engine casting number is 574534 - 4 1/8The head casting number is 573305The cylinder head is P9169654I am rebuilding and need to identify the year for ordering parts. Any help would be greatly appreciated. Thank you. Link to comment Share on other sites More sharing options...
Oldsfan Posted January 15, 2006 Share Posted January 15, 2006 <div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">The cylinder head is P9169654</div></div>Are you sure about this? I'm not finding anything with a P prefix. Maybe it's an F? And I thought it should only have 6 number, not 7.Paul Link to comment Share on other sites More sharing options...
Riley77777 Posted January 15, 2006 Author Share Posted January 15, 2006 The numbers are correct. Link to comment Share on other sites More sharing options...
rocketraider Posted January 16, 2006 Share Posted January 16, 2006 Send a PM to Blownolds. He's sharp on 371-394 stuff. Link to comment Share on other sites More sharing options...
Oldsfan Posted January 16, 2006 Share Posted January 16, 2006 I've got a '68 Motor manual in front of me. The first year they show a P prefix on the motor number is for the '67 2bbl 425.Where's the motor number located at? Link to comment Share on other sites More sharing options...
Riley77777 Posted February 1, 2006 Author Share Posted February 1, 2006 The #P9169654 is located on the top of the head just above the 18 Link to comment Share on other sites More sharing options...
Oldsfan Posted February 2, 2006 Share Posted February 2, 2006 I'm sorry, you've lost me. Just above the 18? You'll have to explain that. The engine number is on the driver's side head, stamped on a pad just below the edge of the valve cover, between #3 and #5 cylinder.Paul Link to comment Share on other sites More sharing options...
Riley77777 Posted February 2, 2006 Author Share Posted February 2, 2006 You are correct, that is exactly where the number is on the head.Thanks for trying to help. Link to comment Share on other sites More sharing options...
Oldsfan Posted February 5, 2006 Share Posted February 5, 2006 OK, now this is starting to come together.'59 and '60 394s had the center x-man bolts above and below each other (leaving room on the head's center exhaust ports for the 18 you mentioned, which I now see in my '60 shop manual). In '61 they went to the two center x-man bolts being side by side - no room on the center ports to cast a number. Those numbers, like on my '62 are on the end ports instead of in the center.So I'd say you have a '59 or '60.According to the '60 shop manual they only used one 394 (as opposed to 2 371s). Motor numbers started at 500001 and had a D prefix, so a '60 394 motor should be a D500001. And they were green. I don't have a '59 manual, but it appears from what I'm seeing in other publications that they used the same numbering system.Paul Link to comment Share on other sites More sharing options...
Riley77777 Posted February 5, 2006 Author Share Posted February 5, 2006 Thanks very much for your assistance. Link to comment Share on other sites More sharing options...
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