Vintage Pontiac Pics

[StealthBird]

The Chevy and Pontiac setups were both made by Rochester Products, and were similar. The main difference being in the manifold design, and the fuel-meter locations. The Pontiac manifold had longer runners, giving a ram effect, and was stronger in the low and mid-range areas. The Pontiac setup made a respectable 310 hp from 347 cubes, but unfortunately pushed the heaviest car in Pontiac's lineup. A 57 Chieftain with the tri-power was actually quicker than the 57 Bonneville.

All 630 of the 1957 Bonnevilles were fuel injected, all convertibles, and all of them were loaded up with every available factory option, which again made them the heaviest of the Pontiacs.

The 57's typically sell for $120K-$200K now, one of the most expensive collector cars out there.

This is a 58 unit, but the runners and fuel inlets were the same as in 57. Biggest difference between the 57 Chevy F.I. and 57 Pontiac F.I. was the plenum, and runner length. Pics are from an old post on the Corvette Forum.