CHEVY # 186 DOUBLE HUMP SBC 3927186 CYLINDER HEADS For Sale
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CHEVY # 186 DOUBLE HUMP SBC 3927186 CYLINDER HEADS :
Up for sale is a pair of Small Block Chevy double hump cylinder heads. Casting number 3927186, heads are dated F239 & G29,(June 23, 1969 & July 2, 1969). These heads have2.02 intake and 1.60 exhaust valves with 64cc combustion chambers. The 186 heads are very rare as they are some of the last double hump closed chamber heads with accessory holes on the ends. These heads are bare heads without any valves or hardware. The heads have been machined for screw in studs and guide plates. There is some very light de-burring/polishing on the intake and exhaust ports, the combustion chambers are untouched. The heads do need some repair. Previously somebody used these on a race engine and they bowl hogged below the intake seats with about a 90 degree cutter and on one seat they went into a water jacket. The head will need to be welded or possibly a custom replacement seat made and installed. All the other intake seats look OK but I don’t know how thin the casting is. The heads came off of a good running engine but the 1 hole was filled with epoxy so it didn’t leak. When the engine was running there were no signs of any other problems but these heads will need work to be useable. Because they also need repair I’m selling them as-is with no guarantee. What you see in the pictures is what you are offerding on. The heads come as pictured. These heads will need to be finished to be useable. If your the winning buyer and only want the single head without the hole let me know. If this is the case I will adjust the invoice after the sale ends so shipping will be $37.50 for the one head.These are bare heads ready for your machine shop to bring it to life. These heads came factory installed on all High Performance Fuel Injected and carbureted Chevrolet vehicles including Corvette, Camaro RS SS & Z-28, Chevelle Malibu, Chevy II Nova, Bel Air, & Impala. These heads will also interchange with other camel hump heads with casting numbers 370, 461, 461X, 462, 291, 292, 186, 041, & 492. These heads will fit all small block Chevy engines from 1955 to 1986. I tried to list everything about these heads but please ask any/all questions before offerding. Please do not ask about how much to end the sale early, the high buyer at the end of the sale gets these. Payment must be received within 5 days or item will be re-listed unless other arraignments have been made in advance. Shipping, handling, & insurance is fixed at $75.00 for both heads shipped to the continental US only. Alaska, Hawaii, and everywhere else will be higher. All international buyers please multiply the shipping calculator by 2 for two boxes. Selling the heads with . Thanks for looking.
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