[Mus408]

Happened to read a 1970 roadtest on the Challenger T/A,with the 3 2bbl.340 engine. It was stated that even with the better intake and 3 carbs. and better exhaust,the HP rating was still 275,just like the standard 4 bbl. 340 in the regular Challengers and Cudas. But upon driving it,and testing at the strip,it was more potent than the standard version. Shades of the Bullitt,wouldn't you say. It ran 14.20s at 99-100 MPH with 3.55 gear.

 

[jacob67]

car makers sometimes put out ambiguish ratings for insurance purposes.

 

[Mus408]

And,back then,for a favorable Stock Eliminator class for the car to fall in.

 

[PEO'R]

HP is not everything. Area under torque curve in the RPM range used (say 3000 to 6000) is a better measure of how fast a car will accelerate. I bet the 340 six pack had a much flatter torque curve than the 4bbl, just like our Bullitts torque curves are much flatter than the stock 4.6's used in the regular GT.

 

[Mus408]

Another to look at,is the RPM they rate it at. Sometimes factories would rate the stealthy hot engine options at a lower than peak HP, RPM rating.....A little sneaky!