|
: How can I tell what year my heads are? dirty_dawg Aug 18th, 04, 9:57 AM I have a pair of 993 heads.....is there any way I can tell what year they are? Like are there any numbers on the head that specifically decode the year the head is? Also are there any numbers that tell what size valves this head uses? dickf Aug 18th, 04, 12:03 PM the date code is on the head inbetween the valve springs. valve size alsmos has to be measured as you could have had them machined to take bigger valves. ROBC Aug 18th, 04, 1:03 PM 307 or 350 heads, 1968-79 could have 1.71 or 1.94 intakes and 1.50 exhaust valves. dirty_dawg Aug 18th, 04, 2:22 PM Originally posted by dickf: the date code is on the head inbetween the valve springs.Well here's some #'s I found: Left bank: GM 16 (between #3& #5 exaust), J(?)12 2 under the casting number Right bank: GM 1 (between #4 & #6 exaust), F30 73 under the casting number, CONV 4 (between #6 & #8 intake) | ||