Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. |
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#2
12-20-2017, 03:06 PM
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The two 4.56 BE COPOs Steve noted are well known in the hobby. Others are possible.
BT is the code for the 3.55 posi axle. 4.56 was special order only [COPO 9511] for '69. There is a 9511 Z/28 with 4.88s; believe that code is BX, same as '68. Data indicates 997 L72 COPOs were built. Current body of knowledge includes about 450 cars. Plenty left to learn about COPOs. 
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#3
12-20-2017, 03:39 PM
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COPO 4:56.1 paperwork with WW
Copy of the paperwork for 4:56 gear BE
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#4
12-20-2017, 05:57 PM
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Interesting, NM motor, oops! Thanks for posting the dealer invoice.
I've always wondered on these Copo 4.56 rears, who installed the gear set? Having the BE stamp you would not expect Eaton or Norwood to have installed the 4.56 gear set. Was it up to the dealer to install the 4.56?
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#5
12-20-2017, 06:18 PM
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Is there any BW (4.56) or BX (4.88) Rear End found on a 69 Camaro?
Sorry, I didn't see Williams post, Thanks Last edited by Carleen; 12-20-2017 at 08:05 PM.
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#7
12-20-2017, 08:52 PM
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Is it an M21 or M22?
Ryan
__________________
 1969 Beaumont 350 Auto White Sold 1969 Beaumont 307 Auto Green Sold 1969 Chevelle SS 396-L35 Auto Blue Sold 1969 Oldsmobile Cutlass 'S' Sports Coupe W31
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#8
12-20-2017, 11:22 PM
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I believe this car was in the Solid Lifter Showroom, At Carlisle this summer for the GM Nats ? Really like the color, rallys & W/W's Killer car !!!
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#9
12-24-2017, 03:46 PM
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Super nice Copo
__________________
1968 ChevyII 396 375,1969 Camaro 396 375 survivor , 1969 Dynamotion Copo Camaro,1968 L 79 ChevyII ,1969 Camaro 427 ratsness ,1967 Chevelle L79
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