Good Deal 455 HO ?

[StealthBird]

Yes, the 1975 455HO was an "H.O." in name only. No resemblance to the vaunted 1971-1972 455HO's.

Pontiac was still licking their wounds from the cancellation of the 1974 SD-455 program, so they dubbed their 1975 engine a 455 H.O. in an attempt to lure unsuspecting buyers.

The 1975 Trans Am's still handled great, looked good, same great interior and gauges as previous years. But the 1975 engines were essentially station wagon motors. On top of that, this was the year of the single exhaust, through a catalytic converter (branched out to duals), which killed off the big 455's power even more.