A8 ● Confirmed

Buick · Regular Production Option

Super Wildcat 425 dual-quad engine option (dealer code); 454 sold without GS package in 1965

Years 1965, 1970 Models 3

Also described as High Performance Group: 350-4bbl, dual exhaustHigh Performance Group: 350-4bbl + dual exhaust

Documented applications

Full-Size — LeSabre / Electra / Wildcat →

• 1970 ● Confirmed

  LeSabre

Riviera →

• 1965 ● Confirmed

  Riviera

Skylark / GS →

• 1970 ● Confirmed

  Skylark/Custom/Sportwagon (std. on GS)

This page aggregates every documented appearance of A8 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.