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#1
01-29-2007, 07:02 PM
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Another COPO question
Which of the '69 COPO Camaros had the solid lifter 435 horsepower version of the 427? I thought I had read somewhere that 4-speeds came with the solid lifters and automatics came with the hydraulic lifter 425 horsepower version, but my car is a 4-speed with the 425 horsepower 427.
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#2
01-29-2007, 07:06 PM
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Re: Another COPO question
The COPO camaros had the L72 version, so it was rated at 425 - even though Yenko may have advertised it at it's old 1965 rating of 450.
The '67 Yenko Camaros did come in two versions - but they were not COPO's. The 4speed YC was 450hp and the a/t was 410hp, (ie; hydraulic cam version).
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Marlin 70 Yenko Nova-350/360, 4speed M21, 4.10 Posi (Daddy's Ride) 69 SS Nova-396/375hp, 4speed M20, 3.55 Posi (Benjamin's Ride) 67 RS Camaro-327/250hp, 2speed Glide, & 3.08 Open (Danny's Ride)
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#3
01-31-2007, 06:53 PM
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Re: Another COPO question
They didn't make the L72 427 until 66.
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~JAG~ NCRS#65120 68 GTO HO 4 spd Alpine Blue /Parchment 2 owner car #21783 71 Corvette LT1 45k miles Orig paint - Brandshatch Green - National Top Flight - last known 71 LT1 built. 71 Corvette LT1 42k miles Original paint - Black - black leather - only black LT1 known to exist. NUMEROUS Lemans blue Camaros, Monza Red and Daytona Yellow Corvettes & a Chevelle or two... Survivors, restored cars, & other photos https://picasaweb.google.com/lh/myphotos
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#4
02-01-2007, 05:09 AM
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Re: Another COPO question
You don't suppose someone in the past got the 410 hp Ford 427 mixed up with a Chevy 427?
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Chevelleless after 46 years......but we did find a low mileage, six speed, silver 2005 Corvette. It will just have to do for now. 
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