The 428 HO, meanwhile, didn't come as standard in ... Hitting the market in 1969, the RA IV was the range-topping engine for ...

For a mere $650, exchange, Royal will snake out that overworked little engine in your GTO and slide in the 428, all prepared for action. And now, speed-crazed sports fans, Roy­al Pontiac has ...

The seven-liter big-journal Pontiac engine delivered 360 ... The High-Output (HO) 376-hp V8, affectionately referred to as the “Quadra-Power” 428 in the performance sales literature, couldn ...