1965-66 327
12-05-2016, 12:30 PM
#1
1965-66 327
I have a 1966 327 It is suppose to be a factory corvette engine
The stamped code is Fo9 I4HCH I think that means Flint sept 14 Holley carb/275 hp/ power glide
Block casting numbers are 3858175
Now this is a 327/275 h.p. engine. It has the 461 heads
My question is; should I keep the heads with the engine?
I just installed new heads to relive the issues of running unleaded fuel. I need to send the old heads back for the core charge. I can pay the core or send another set of heads back to them.
If this is a true corvette 327/275 engine I would think it has some rarity if it was built for a power glide in 1965/66
I would truly like some input from someone who know more then I do on this subject
Regards,
zook 19809
The stamped code is Fo9 I4HCH I think that means Flint sept 14 Holley carb/275 hp/ power glide
Block casting numbers are 3858175
Now this is a 327/275 h.p. engine. It has the 461 heads
My question is; should I keep the heads with the engine?
I just installed new heads to relive the issues of running unleaded fuel. I need to send the old heads back for the core charge. I can pay the core or send another set of heads back to them.
If this is a true corvette 327/275 engine I would think it has some rarity if it was built for a power glide in 1965/66
I would truly like some input from someone who know more then I do on this subject
Regards,
zook 19809
12-05-2016, 10:32 PM
#2
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I have a 1966 327 It is suppose to be a factory corvette engine
The stamped code is Fo9 I4HCH I think that means Flint sept 14 Holley carb/275 hp/ power glide
Block casting numbers are 3858175
Now this is a 327/275 h.p. engine. It has the 461 heads
My question is; should I keep the heads with the engine?
I just installed new heads to relive the issues of running unleaded fuel. I need to send the old heads back for the core charge. I can pay the core or send another set of heads back to them.
If this is a true corvette 327/275 engine I would think it has some rarity if it was built for a power glide in 1965/66
I would truly like some input from someone who know more then I do on this subject
Regards,
zook 19809
The stamped code is Fo9 I4HCH I think that means Flint sept 14 Holley carb/275 hp/ power glide
Block casting numbers are 3858175
Now this is a 327/275 h.p. engine. It has the 461 heads
My question is; should I keep the heads with the engine?
I just installed new heads to relive the issues of running unleaded fuel. I need to send the old heads back for the core charge. I can pay the core or send another set of heads back to them.
If this is a true corvette 327/275 engine I would think it has some rarity if it was built for a power glide in 1965/66
I would truly like some input from someone who know more then I do on this subject
Regards,
zook 19809
If it has your VIN stamped on the block and the heads are dated within 6 months of the block date, I would probably hang on to them and it may help if you decide to sell the car. You can find the dates, post a picture of your pad with the VIN and engine No. and the experts on here may be able to verify it is original to your car.
If you find the engine is NOM, there is a guy on here, I believe JB66, that is looking for a set of 66 double hump heads dated between Jan and Apr 66. If you decide to dump them, he may want to swap them out, pay the core charge, or make you a deal.
I'll get more info on my engine and post it for your comparison. If you do a search, I asked the same question on this forum about my engine.
Ron
12-05-2016, 10:48 PM
#3
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Correction: My 327 is Block F020IHCH Flint, Feb 01, power glide, Holley carb 3858174 date code A266 (Jan 26, 1966). There is no VIN Heads 3782461 (double hump) A266 (Jan 26, 1966).
From my research, it was used for Corvette and other HP cars (Chevelle, Impala, etc.)
I seem to remember the experts on here did not believe it was Corvette, and I agree as there is no VIN stamp.
From my research, it was used for Corvette and other HP cars (Chevelle, Impala, etc.)
I seem to remember the experts on here did not believe it was Corvette, and I agree as there is no VIN stamp.
12-05-2016, 10:54 PM
#4
Team Owner
Corvette didn't have a 275 hp car, nor an HCH suffix in 65/66. The 65 had a 250, 300,350.365.375 hp, the 66 base was 300 hp, with optional 350.
The following users liked this post:
zook19809 (12-15-2016)
12-05-2016, 10:56 PM
#5
Team Owner
I have a 1966 327 It is suppose to be a factory corvette engine
The stamped code is Fo9 I4HCH I think that means Flint sept 14 Holley carb/275 hp/ power glide
Block casting numbers are 3858175
Now this is a 327/275 h.p. engine. It has the 461 heads
My question is; should I keep the heads with the engine?
I just installed new heads to relive the issues of running unleaded fuel. I need to send the old heads back for the core charge. I can pay the core or send another set of heads back to them.
If this is a true corvette 327/275 engine I would think it has some rarity if it was built for a power glide in 1965/66
I would truly like some input from someone who know more then I do on this subject
Regards,
zook 19809
The stamped code is Fo9 I4HCH I think that means Flint sept 14 Holley carb/275 hp/ power glide
Block casting numbers are 3858175
Now this is a 327/275 h.p. engine. It has the 461 heads
My question is; should I keep the heads with the engine?
I just installed new heads to relive the issues of running unleaded fuel. I need to send the old heads back for the core charge. I can pay the core or send another set of heads back to them.
If this is a true corvette 327/275 engine I would think it has some rarity if it was built for a power glide in 1965/66
I would truly like some input from someone who know more then I do on this subject
Regards,
zook 19809
:::EDIT:::
Found this for you...just type in the Codes..minus the "H" for holley...if you want to see all the Corvette codes...click on the book at top of link...or any book to see all the code for that car...
http://www.thecamaro.com/Decoding/Ch...inedecoder.php
::EDIT EDIT:::
HC 1965 327 Powerglide 275 4 full size
HC 1969 350 m/t 250 2 A F X
Last edited by 66jack; 12-05-2016 at 11:23 PM.
12-05-2016, 11:02 PM
#6
Team Owner
Impala did:
HCH 1966 327 275 4 powerglide, Holley Carb
HCH 1966 327 275 4 powerglide, Holley Carb
12-05-2016, 11:16 PM
#7
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Keep in mind the double hump heads are not tied to the VIN. I don't know why JB66 is so set on finding the right dated heads, but some guys want it ALL right.
I am thinking the 461 heads are 62 cc, 1.94 intake, 1.50 exhaust which may be what JB66 can use. Are the heads serviceable? Might be worth a few $$$ to the right guy. Probably more than the core charge.
I am thinking the 461 heads are 62 cc, 1.94 intake, 1.50 exhaust which may be what JB66 can use. Are the heads serviceable? Might be worth a few $$$ to the right guy. Probably more than the core charge.
12-15-2016, 10:07 AM
#8
Keep in mind the double hump heads are not tied to the VIN. I don't know why JB66 is so set on finding the right dated heads, but some guys want it ALL right.
I am thinking the 461 heads are 62 cc, 1.94 intake, 1.50 exhaust which may be what JB66 can use. Are the heads serviceable? Might be worth a few $$$ to the right guy. Probably more than the core charge.
I am thinking the 461 heads are 62 cc, 1.94 intake, 1.50 exhaust which may be what JB66 can use. Are the heads serviceable? Might be worth a few $$$ to the right guy. Probably more than the core charge.
Thank you for your help
I am seeing the heads as having a date code I 1 5 Sept. 1965 So they could be original to the block.
I don't think I am keeping them there are a lot of heads out there if I want them. A walk through Carlie can unearth many heads when your not looking for them.
I don't think now that the motor is a corvette motor all though its a good little 327 bored .030 with a steel crank. I will keep the motor for now
12-15-2016, 10:13 AM
#9
Thank you for your help
I was coming up with 65-67 275 hp Holley power glide
good little motor and high rev-in now.
I doubt very much it is a vetted motor,
its another myth used to sell the car
Oh well at least it runs well
PS I don't like power glides cant wait to change it out
I was coming up with 65-67 275 hp Holley power glide
good little motor and high rev-in now.
I doubt very much it is a vetted motor,
its another myth used to sell the car Oh well at least it runs well
PS I don't like power glides cant wait to change it out
12-15-2016, 11:13 AM
#11
12-15-2016, 01:50 PM
#14
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