Why It Matters
The 405-hp 1961 Super Duty 421 used Carter AFB 3435 front and 3433 rear four-barrels and was paired only with a manual transmission.
Also Known As
1961 Pontiac dual quad 421Carter AFB 3435 and 34331961 405-hp Super Duty induction
Part profile
engine part · Pontiac / Carter
The 405-hp 1961 Super Duty 421 used Carter AFB 3435 front and 3433 rear four-barrels and was paired only with a manual transmission.
1 linked car page.
Series 23 Catalina donor, typically a two-door sedan or bubble-top Sport Coupe, converted after delivery with Super Duty 421 equipment
Dealer or race-team installation after Pontiac assembly