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Authenticity reference

421 engine configuration

numbers matching · documented

Reference Details

Common issue
A later 421, converted Tri-Power intake, or HO dress parts are presented as the original configuration. · 1965 Pontiac Catalina 2+2 421
Confidence
documented · 1965 Pontiac Catalina 2+2 421
Correct value
Factory 421 four-barrel, 421 Tri-Power, or 421 HO configuration matching the individual invoice and period specifications · 1965 Pontiac Catalina 2+2 421
Where to check
PHS documents, engine unit code and date, block and head dates, induction, cam and exhaust equipment · 1965 Pontiac Catalina 2+2 421
Common issue
A later 421, converted Tri-Power intake, or HO dress parts are presented as the original configuration. · 1966 Pontiac Catalina 2+2 421
Confidence
documented · 1966 Pontiac Catalina 2+2 421
Correct value
Factory 421 four-barrel, Tri-Power, or HO configuration matching the individual invoice and period specifications · 1966 Pontiac Catalina 2+2 421
Where to check
PHS documents, engine unit code and date, block and head dates, induction, cam, and exhaust equipment · 1966 Pontiac Catalina 2+2 421

Cars With This Authenticity Marker

2 linked car pages.

Sources & Documentation