#'s double-hump cylinder heads

I've found, while cleaning out my garage, a set of heads a friend of mine gave to me a few years back, in return for some $ owed. Not sure if these match, but the numbers
I've found on them seem to be: 3927186 GM14 H278 3927186 GM18 I218 They show the double-hump, or camel-back, on the front - does anyone know, or maybe have access to a source, for info on these? Thanks, John Bender
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1969 300/350 hp 1970 300/350/370 hp 350 heads
--
Dad
05 C6 Silver/Red 6spd Z51
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Right, Dad, and the date codes given H278 and I218 indicate they're from a '69 model year. First was made August 27, '68 and the second made September 21, '68. Appropriate for a very late September or early to mid October car (serial #702750-ish to 704500-ish).
I don't know if these were used in other Chevy applications as I don't have a # cross reference book - but it's certainly possible they'd be appropriate for a Camaro or some such.
Here's waving to ya - \||||
Owen ___
'67BB & '72BB
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John Bender wrote:

Used on '68 302CI Z28 Camaros and on '69 300 & 350hp Corvettes; possibly other applications. 2.02" intake, 1.6" exhaust. Casting date of Aug 14 '68 on one head means it could possibly have been used on either '68 or '69 vehicles, but the other head (Sept 18) means more likely they are from a '69 Corvette.
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FYI I've found info re: those heads..... They are early '69 350-300hp, & off of a Vette or a Camaro.
H = Aug. I = Sep. 27 = 27th day 21 = 21st day 8 = 1968 8 = 1968
Take care, John
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