Due to stricter government regulations, the era of unrestrained factory-built performance was coming to an end in 1971. However, GM's excitement division answered with the largest displacement engine ...

The 1967 Pontiac GTO High Output package did more than add a few extra horsepower. It crystallized how Pontiac could keep selling excitement in an era when corporate rules were starting to rein in the ...

Pontiac didn’t produce too many Firebirds equipped with the 400 HO engine for the model year 1969, and needless to say, the convertible accounted for an even small share of these numbers. Follow us: A ...

351 Cleveland engines in the four basic configurations: A. 2 barrel; B. 4-barrel; C. Cobra Jet; D. HO or Boss 351. It seems that in the world of high-performance engines, the 351 Cleveland has been ...

The evil Dr. FrankenRat is less than satisfied. His monster is alive, but not yet powerful enough. So far, his tests have been superficial with minor surgery aimed at better breathing. Our dour doctor ...