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Canadian Poncho Homepage -> Canadian Poncho -> 65-70 Full Size Power Train Tech Forum -> LS1 Performance numbers
Post Info TOPIC: LS1 Performance numbers
Shrike


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LS1 Performance numbers
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IMG_8782.jpegIMG_8781.jpeg

 

 

Can anyone explain this? The torque rating difference of the LS1 between Pontiac and Chevrolet? 

 

 



-- Edited by Shrike on Saturday 21st of October 2023 01:50:34 AM

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seventy2plus2


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Nope.

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70 2+2 convertible
70 2+2 hardtop
70 Parisienne hardtop

 

 
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4SPEED427


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Well, I guess we've always known that Pontiacs are superior to Chevrolets but this just proves it...

Strange indeed.

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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)
Shrike


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All the other engine specs appear identical. Im guessing its a typo. The question is which one is correct?

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seventy2plus2


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For those unfamiliar with 1969 427's, the LS1 is the:
Chevrolet: 335 hp Turbo-Jet 427 V8,
Canadian Pontiac: 335 hp Astro-Jet 427 V8.

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73SC


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Below is the page from the 1969 Owners Manual with engine specifications, sales brochure well known to contain typos:

69Pontengines.jpg



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Ray White, Toronto ON

Formerly - The one and only 1973 LeMans 454 "Astro-Jet"

Built March 9, 1973 - Oshawa ON

1993 Corvette Convertible LT 1

Built January 10, 1993 - Bowling Green Kentucky 

 
Shrike


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IMG_8790.jpegImagine that!
Now have a look at the same page from the 1969 impala owner manual. Just to add a little more muddling.



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4SPEED427


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Haha, the only thing consistent with their paperwork is their inconsistency!

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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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