COPO 9561 ● Confirmed

Chevrolet · Regular Production Option

L72 cast-iron 427 425 hp package

Years 1969 Models 1

Documented applications

Camaro →

• 1969 ● Confirmed

  997 engines (incl. Yenko cars)

This page aggregates every documented appearance of COPO 9561 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.