Why It Matters
Three Rochester two-barrels supplied the optional 356-hp and 376-hp 421 configurations.
Also Known As
421 three-two-barrel421 3x2421 HO Tri-Power
Part profile
1965 Pontiac 421 Tri-Power induction
carburetor · Pontiac
Used On
2 linked car pages.
Catalina 25237 Sport Coupe or 25267 convertible
1965 Pontiac Catalina 2+2 421
W51 2+2 Sports Option
26657 Sports Coupe (two-door pillarless hardtop)
1965 Pontiac Grand Prix
26657 Sports Coupe