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Post Info TOPIC: 454 tall deck truck block
4SPEED427


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RE: 454 tall deck truck block
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GLHS60 wrote:
Appreciate you posting this Carl!!
That was my thread over at Team Chevelle that got updated.
I've had computer problems and haven't received many thread updates.
I'll have to find Clint's thread on here as I was unable to login for a longtime.
Thanks
Randy

 

 Yes, I should have explained. I think you mentioned that possibly a 454 tall deck existed when I said they did, my head was on a chopping block and they were all holding an axe! 

Anyway, I was glad you asked about it because I know it exists. One day I'll find a truck with one in it and take a video to post online showing me with Bigfoot/Lockness Monster/Unicorn and whatever else a 454 tall deck title can be!



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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
CdnGMfan


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I know I have a 1980 GMC mediums brochure somewhere. In the meantime I am looking at my 1984 brochure and it states "The 7.0 Litre (427 CID) V8 is the largest displacement gasoline engine available in GMC mediums. It is an oversquare-designed engine to reduce piston travel and provide high torque..." It almost sounds like they are countering that there was anything larger before, and they seem to be extolling the virtue of a shorter stroke. The 454 is of course a stroked 427 with higher piston speeds for a given RPM.

I really want to see if I can find that '80 brochure for reference, as I recall it emphasized the brand new Top Kick with the diesel engine.

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67 Chevelle Malibu Sport Coupe, Oshawa-built 250 PG never disturbed.

In garage, 296 cid inline six & TH350...

Cam, Toronto.


I don't judge a man by how far he's fallen, but by how far back he bounces - Patton
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4SPEED427


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CdnGMfan wrote:

 The 454 is of course a stroked 427 with higher piston speeds for a given RPM.

 And it was a big time dud as a tall deck in the C70's.



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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
GLHS60


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The brochure I mentioned in the Team Chevelle thread had pictures of the 427 and 454 truck Engines.

Not great pictures but pretty good for a brochure.

1979 GMC 97" wheelbase IIRC.

Thanks
Randy

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Alberta, Canada

 
CdnGMfan


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Here's an interesting link to details about the tall deck big blocks: https://www.tradecraftspecialties.com/bbckb#Topic19

 

They don't mention much if anything about a 454 version other than this:

 

TD interest.jpg



-- Edited by CdnGMfan on Monday 8th of April 2024 01:43:07 PM

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67 Chevelle Malibu Sport Coupe, Oshawa-built 250 PG never disturbed.

In garage, 296 cid inline six & TH350...

Cam, Toronto.


I don't judge a man by how far he's fallen, but by how far back he bounces - Patton
GLHS60


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I Just found the picture from the 1979 GMC brochure I was talking about.

Hopefully it comes through.

Thanks

Randy

1979 GMC 454 3.jpg



-- Edited by GLHS60 on Wednesday 10th of April 2024 06:55:55 PM

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Sherwood Park
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4SPEED427


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GLHS60 wrote:

I Just found the picture from the 1979 GMC brochure I was talking about.

Hopefully it comes through.

Thanks

Randy

1979 GMC 454 3.jpg



-- Edited by GLHS60 on Wednesday 10th of April 2024 06:55:55 PM

 Yes, there's tons of evidence that these exist but for the boys on Team Chevelle it still isn't enough!



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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
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GLHS60


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Right, I was cleaning up my photo albums and found the pictures so thought I would share.

Thanks
Randy



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Sherwood Park
Alberta, Canada

 
4SPEED427


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GLHS60 wrote:

Right, I was cleaning up my photo albums and found the pictures so thought I would share.

Thanks
Randy

 Glad you did, the more ammunition to prove they exist, the better!



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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
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