[Paul Ceasrine]

Rock,,

For the NHRA in 1969, the 1969 Chevelle Malibu 427 COPO,
with the L-72 engine (425 HP) was originally built for the
SS/D and/or SS/DA class..

But in 1969 the NHRA re-adjusted the classes, and the 1969 Chevelle 427 COPO
was classed in SS/E or SS/EA, in with the B-Body Street-Hemi cars (except the heavier Dodge Chargers or convertible B-Body cars).

The SS/E class weight factor was (7.50 - 7.99 wt/hp).
The 69' Chevelle Malibu with the 427/425 HP L-72 weighed in at
#3554 lbs. (manual) or #3611 lbs. (automatic).

The 425 HP engine was re-factored to a higher rating, which placed the
Chevelle's in that HP/weight bracket.
Also, the cars could be classed in A/S for 1969.

In 1970,,,,the Chevelle 427 COPO car was re-classed back into SS/D,
and/or B/S in the stock class.

The carburetor, was a Holley Model #4150 780 CFM, w/vacuum secondaries.

Overall, a very powerful 'street car',,,,,,,,and driveable without any major problems,
at the track,,,,,moderate success,,,,,

pc



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