Reference Details
- Confidence
- documented
- Correct value
- GA on cylinder heads
- Where to check
- Front of left cylinder head and rear of right cylinder head
Authenticity reference
Cylinder-head casting letters
date correctness · documented
Cars With This Authenticity Marker
1 linked car page.
1972 Oldsmobile
1972 Oldsmobile 442 Hurst Olds W-30
Hurst Performance, with conversion work recorded at the Demmer facility in Lansing, Michigan