Reference Details
- Common issue
- Standard 455 heads installed on a claimed Stage 1
- Confidence
- reported
- Correct value
- 1240146 listed for 1971 Stage I 455 heads
- Where to check
- Cylinder head casting number
Authenticity reference
Stage 1 cylinder head casting
numbers matching · reported
Cars With This Authenticity Marker
1 linked car page.
1971 Buick
1971 Buick GS Stage 1
Factory Stage 1 option on 1971 Buick GS/GS 455 records