1970 deuce

[Mr70]

There was and it started with the Ex.Manifolds.

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Sam
I've always understood the difference between the two was their gross horse power,do to different exhaust manifolds & notated with seperate suffix codes.
1970 Corvette LT-1 350/370HP coded CTU/CTV used Ex.Man. LH-3872765 & RH-3932461.
1970 Camaro LT-1 350/360HP coded CTB/CTC used Ex.Man. LH-3942527 & RH-3946826.

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I also have an inhouse 1970 Chevrolet Technicians Diagnostics Specifications Catalog dated February 1970,that shows individual engine outputs and peak levels.
The Corvette LT-1 clearly shows 370HP @6000RPM w/peak torque of 380 @4000RPM while the Camaro LT-1 shows 360HP @6000RPM w/peak torque of 380 @4000RPM.

[Schonyenko2]

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on the chart what does MSO and COMP DATE signify??

Also I have read that thy used a LT1 from a vette vs a camaro



[/ QUOTE ]Wern't the Vette LT-1's and the 70 Z/28's the same motor? Were they not built at the same place and stamped with a Yenko Deuce code? [/quote )

There wasn't a Yenko deuce suffix code per say. The COPO power train was a Z28 LT/1, M21, and CBW rear. In the advertisemant Don calls out a 370hp Corvette type motor. I believe he did that so he could say that a deuce had more hp than a Z. Remember too, that most people believed back in the day, that the 66,67 Chevy 11 L79's were corvette motors.

[camarojoe]

Hell, til this day every car (or truck!) in Johnstown, PA with a 350 in it allegedly has a "Corvette motor"....