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1967 327 high performance engine

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Old Nov 17, 2023 | 10:45 AM
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Default 1967 327 high performance engine

My friend who I do show’s with has a 67 coupe with a 327 4bbl 4 speed and says it a special high performance engine from factory that was rated at 450 hp and was one of 119 built but I can’t find any information on this any help appreciated.It does have side pipes that the previous owner told him they were installed by dealer and factory just shipped them in car.
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Old Nov 17, 2023 | 10:53 AM
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Ask him to provide documentation to prove his claim.
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Old Nov 17, 2023 | 11:07 AM
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snap a couple good clear photos of the engine bay, especially one of the Stamp pad markings, and post them so all of us can get a good look at this unique beast..
You're friend will get his questions answered promptly.
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Old Nov 17, 2023 | 11:13 AM
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Originally Posted by Moman01
My friend who I do show’s with has a 67 coupe with a 327 4bbl 4 speed and says it a special high performance engine from factory that was rated at 450 hp and was one of 119 built but I can’t find any information on this any help appreciated.It does have side pipes that the previous owner told him they were installed by dealer and factory just shipped them in car.



Last edited by KingRat; Nov 17, 2023 at 11:42 AM.
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Old Nov 17, 2023 | 11:17 AM
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I bet it has the special big block hood that was put on the small block cars in 67 as well. Jerry
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Old Nov 17, 2023 | 11:18 AM
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Just what book did he get his production records from
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Old Nov 17, 2023 | 11:34 AM
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Altho expressed in very subtle terms, I think I'm sensing some skepticism....
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Old Nov 17, 2023 | 11:46 AM
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Skepticism, yes, because if there was such a factory creation - I think the members here would have heard about it by now.

But hey - ya never know!

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Old Nov 17, 2023 | 01:24 PM
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[QUOTE=Moman01;1607247203]My friend who I do show’s with has a 67 coupe with a 327 4bbl 4 speed and says it a special high performance engine from factory that was rated at 450 hp and was one of 119 built but I can’t find any information on this any help appreciated.It does have side pipes that the previous owner told him they were installed by dealer and factory just shipped them in car.[/QUOTE]
As Don said...pictures would be great. I think your friend is confused, though. Here's my thought. He thinks he has an L88 427 cui in/450 hp "special high performance engine", with the "side pipes shipped in the car" and the engine is one of the 116 produced for the 1969 model year. How's that for a stretch??
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Old Nov 17, 2023 | 01:30 PM
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Everyone is being polite. Your friends claim is badly misinformed at best and total BS at worst.
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Old Nov 17, 2023 | 01:33 PM
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450 HP out of a 327 is a stretch today with the vastly improved cylinder heads available. In the 1960's you might have hit 450 HP if you had a cam that allowed 8,000 RPM and headers, and................, but no way a factory option 327. Did not happen. But, I have been wrong many many times. Just ask my wife.
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Old Nov 17, 2023 | 01:45 PM
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Originally Posted by Moman01
My friend… has a 67 coupe with a 327 4bbl 4 speed and says it a special high performance engine from factory that was rated at 450 hp and was one of 119 built but I can’t find any information on this any help appreciated.

.It does have side pipes that the previous owner told him they were installed by dealer and factory just shipped them in car.
You can’t find any information because your information is incorrect.

The L79 was the Special High Performance 327 engine in 1967, but it’s 350hp (not 450hp). 6,375 Corvettes has the L79 in 1967.

Optionsl equipment ( such as engines) are well documented with individual production quantities known.

Correct me if I am wrong, but highest HP 4-barrel 327 was the 365hp, but that was no longer available after 1965 model year.

1964/1965 327 Fuelie was 375hp…

1970 350 LT-1 was only 370hp, and was the highest hp small block (of the classic era)


side exhaust was a factory installed option, so there’s no reason for the “ factory” to ship in the car, but I am sure the dealer would be happy to upgrade if it wasn’t ordered…

” previous owner told him…”. There’s your problem, he is believing what the previous owner told him…
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Old Nov 17, 2023 | 01:50 PM
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Thanks for the replies and if I can get a picture of the engine and pad I will but he has put the car up for the winter in a storage garage he is the third owner and the guy he bought it from was the brother in law of original owner and he restored the car after his passing and told him his brother in law bought it justo drag race it.It’s definitely a 327 not sure if it’s the solid lifter but doesn’t sound like it.He is not trying to “claim” anything just what he was told and trying to find any information good or bad.
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Old Nov 17, 2023 | 02:07 PM
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Well, if the car is put up for winter, and no photos of stamp pad or motor are available, then your friend has several months left of wondering about what he was told.
One thing we know; more tall tales fly around old Corvettes than any other collectible cars, by far. I'm still trying to figure out why that is.
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Old Nov 17, 2023 | 02:18 PM
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Well, at least you can tell him he is wrong and off by at least 100hp. There is that…
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Old Nov 17, 2023 | 02:40 PM
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The only solid lifter in 67 was the BB L71/L89 and L88. The last solid lifter SB was for 65 until the 70 LT-1
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Old Nov 17, 2023 | 02:57 PM
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If an L79 was in any car other than the Corvette it was rated at 325 HP. Same engine, different rating.
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Old Nov 17, 2023 | 03:16 PM
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Originally Posted by Westlotorn
If an L79 was in any car other than the Corvette it was rated at 325 HP. Same engine, different rating.
no the 65 Chevelle and 66 Chevy II L79 was rated at 350. The L79 was dropped in 66 for the Chevelle but returned in 67 at 325. The L79 was also dropped in 67 for the Chevy II but reportedly 6 were made. Not sure what they would have been rated at. For some reason the L79 was never available in the full size Impala
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