Authenticity reference

400 four-barrel top-engine proof

numbers matching · reported

Evidence graphic summarizing 1976 Laguna S-3 authenticity boundaries. 1976 Chevrolet Chevelle Laguna S-3

Reference Details

Confidence: reported
Correct value: Engine stamping, casting dates, emissions label and documents should support the 1976 optional 400 four-barrel path before publishing a top-engine claim
Where to check: Engine pad, casting/date locations, emissions label, build sheet and dealer paperwork

1 linked car page.

1976 Chevrolet

1976 was the third and final Laguna Type S-3 year