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Re: Expensive mistake [Re: gch] #3219558
03/10/24 03:54 PM
03/10/24 03:54 PM
Joined: Jan 2003
Posts: 31,037
Oregon
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AndyF Online content OP
I Win
AndyF  Online Content OP
I Win
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Joined: Jan 2003
Posts: 31,037
Oregon
Originally Posted by gch
With those heads and a solid roller cam I would have expected more hp ? Don't know the rest of the specs but 600hp in any street car should be a plenty.


Comp 286R-10 peaks at 6000 rpm. If he wants to go racing he can slide in a bigger cam. The heads should be good for 700 hp with a bigger cam and bigger carb.

Re: Expensive mistake [Re: GY3] #3219772
03/11/24 04:05 PM
03/11/24 04:05 PM
Joined: Jan 2003
Posts: 17,846
S.E. Michigan
ZIPPY Offline
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Posts: 17,846
S.E. Michigan
Originally Posted by GY3
Originally Posted by sasquatch
Well their first mistake was building a Chevy......Todd


laugh2


laugh2

www.Mochevparts.com

That's a good find for somebody who doesn't care about numbers.




Rich H.

Esse Quam Videri




Re: Expensive mistake [Re: AndyF] #3219934
03/12/24 11:39 AM
03/12/24 11:39 AM
Joined: Feb 2014
Posts: 1,707
central il.
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second 70 Offline
top fuel
second 70  Offline
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central il.
Originally Posted by AndyF
Originally Posted by second 70
Originally Posted by AndyF
Here is another very similar engine that is in the shop at the moment. This is another 1966 427 but the factory engine numbers are still on it so it can be decoded as a 1966 427/425 or a L72. The 427/425 had solid lifters, 780 Holley carb, a bunch of special parts and only came with a manual trans. This one came out of a passenger car but the VIN isn't stamped on it so don't know what. Probably Impala SS. The passenger car 427/425 are much rarer than the Corvette L72 engines since most people buying a big car didn't want a high compression, solid lifter engine with a manual shifter.

I think this one his getting hot rodded too but I don't know the details.



If that block was installed in a car it would have the serial number on the pad. They started on corvettes in 1960


Yeah I've seen some mention of that. Sounds like GM only stamped the VIN on special combinations and even a 427/425 Impala SS wasn't special enough to get a VIN stamp in '66. Without a VIN we're just guessing on the Impala SS. Could also be a Biscayne. No way to know at this point but it was a rare bird whatever it was.



What makes it really rare is that it wasn't sold for high dollar to a corvette owner who needed an unstamped block so he could end up with a numbers car.

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