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Identify cylinder head

Forum: C3 Engines, Driveline and Handling

8 Messages
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Identify cylinder head

Posted: 1/3/07 1:50pmMessage 1 of 8
k
ksearles
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Joined: 7/24/2006
Posts: 48
Does anyone know what a Chevrolet cylinder head with casting number 3917291 is? Is it from a 350hp 327? I have a set in excellent condition and if they are "fuelie" heads, I might use them on my 300hp 350.
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Identify cylinder head

Posted: 1/3/07 2:09pmMessage 2 of 8
O
Okie Dude
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Eastern Oklahoma County, OK - USA
Joined: 1/3/2006
Posts: 1560
Vette(s): 1980 Black L48 T-Tops
I have a book at the house that I will check when I get home tonight.  There used to be a decoder on the internet but the link I have doesn't work anymore.
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Identify cylinder head

Posted: 1/3/07 2:27pmMessage 3 of 8
m
mkapp7879
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Joined: 10/21/2003
Posts: 1220
Corvette Black Book lists them as for 1968, 327ci. 300hp or 350hp.
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Identify cylinder head

Posted: 1/3/07 10:16pmMessage 4 of 8
r
rearn2go72
Former Member
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Bladenboro, NC - USA
Joined: 1/22/2006
Posts: 1058
Vette(s): 1972 conv., sunfire yellow, blk interior, blk vinyl and convertible top. Off frame restoration with American Speed 383 stroker engine producing 500hp plus a 200hp NOS system. MSD ignition. Hooker super competition headers with chambered exhaust.
3917291....67-68...302/327/350..Camel hump,no accessory holes,64cc chamber
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Identify cylinder head

Posted: 1/5/07 9:05pmMessage 5 of 8
G
GeezerVetter
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Joined: 4/17/2006
Posts: 11
Any body have info on a set of heads nos. 3947040?  I think they came off a killer '65 Malibu SS I had back then.
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Identify cylinder head

Posted: 1/5/07 9:42pmMessage 6 of 8
g
greypoupon69
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Irving, TX - USA
Joined: 8/21/2004
Posts: 4286
Vette(s): #1 -1969 Corvette Coupe Riverside Gold, black interior,MN,A/C,350/350,PS,PB,window cranks. #2 -2000 C5, black/black, 6 sp, Bose system & lots of buttons.
Shocked Well, it's close to a '69 Vette Engine 350ci/300hp - heads stamped as 3947041.

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MICK - C3VR Lifetime Member #113

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Identify cylinder head

Posted: 1/5/07 11:21pmMessage 7 of 8
r
rearn2go72
Former Member
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Bladenboro, NC - USA
Joined: 1/22/2006
Posts: 1058
Vette(s): 1972 conv., sunfire yellow, blk interior, blk vinyl and convertible top. Off frame restoration with American Speed 383 stroker engine producing 500hp plus a 200hp NOS system. MSD ignition. Hooker super competition headers with chambered exhaust.
3947040....68......327.........."Right angle" casting identifier, 64cc chambers, good HP head, 
used in trucks, no accessory holes
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Identify cylinder head

Posted: 1/9/07 9:17pmMessage 8 of 8
B
BKVETTE
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Calhoun City, MS - USA
Joined: 9/24/2005
Posts: 121
Vette(s): 1977 Black T-Top
I have a "BUILDING MUSCLE" book. It states "Casting no.3917291(1967-1968) almost identical to the 462 casting, these heads breath well due to their larger port volumes. you'll find them on 302,327,350 engines.
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in Forum: C3 Engines, Driveline and Handling


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