Authenticity reference

426-II revision

numbers matching · documented

Reference Details

Common issue: Later revised components used without matching engine-number and date evidence.
Confidence: documented
Correct value: TMP 426-2 or TMP-HC 426-2 engine-number sequence and Roman numeral II valve-cover marking
Where to check: Engine number, valve covers, induction, heads, cam specifications, and scheduled build date

1 linked car page.

1963 Plymouth

Plymouth called it Super Stock 426; Max Wedge is the familiar enthusiast name.

Chrysler-Plymouth Division, Chrysler Motors Corporation 1963 Plymouth Super Stock 426 technical service bulletins