High Performance Heads 291
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1st Gear
Joined: Sep 2017
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High Performance Heads 291
I am trying to sell some GM cylinder heads. The casting number on them is 3917291. I don't really know much about these types of things that from doing research this is what I've found out so far. These were manufactured from 1967-1968 on 302, 327, and 350 cubic inch engines. Has 1.94/1.50" valves and a 64cc combustion chamber. They do not have accessory holes but intake Port volume is 161 CC's, exhaust Port volume is 65 cc's. I am trying to figure out how much these are worth and if there's any other information I need to know about them. Thank you.
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Welcome to the Forum, Amanda.
Hard to put a number on your heads with the brief description. The heads were available with the 1.94/1.50 valves, but also with 2.02/1.60 valves. Condition of the heads goes a long way with value. I would encourage you to do an online search using the casting number to get a better feel for how your heads' condition compares to others you will find. Check the date code, too. These heads will probably be most valuable to someone wanting a period correct restoration. If you want to sell these on the Forum, your best place is the C1&2 and C3 sections, but you will need to include a price with your listing.
Good luck.
Hard to put a number on your heads with the brief description. The heads were available with the 1.94/1.50 valves, but also with 2.02/1.60 valves. Condition of the heads goes a long way with value. I would encourage you to do an online search using the casting number to get a better feel for how your heads' condition compares to others you will find. Check the date code, too. These heads will probably be most valuable to someone wanting a period correct restoration. If you want to sell these on the Forum, your best place is the C1&2 and C3 sections, but you will need to include a price with your listing.
Good luck.
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As mentioned, post this over in either the C1/C2 section or the C3 section.
Closing this one down.
Closing this one down.
