Quote:
Originally Posted by Paul Ceasrine
Back-in-the-Day. {1970 Photo}
1970 Ford Boss 429 Mustang {429/375 HP}
Shipping Weight ....... #3445 lbs.
Factor ....................... #3445 lbs. ~ 375 HP = 9.18 Wt./HP
But in 1970, the NHRA re-factored the 429/375 HP to 410 HP
New Factor ............ #3445 lbs.~ 410 HP = 8.40 Wt./HP
1970 Class {8.00 to 8.49} Wt./HP .......... C/Stock
Fougler Ford {Monrovia, California} ...... Pat Mahnken
The NHRA re-factored the 429/370 HP.
1970 ......... Classed in C/Stock
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Can anyone check the factoring back then - the thing Paul mentions about the 429/375 being factored up to 410hp in 1970 (and beyond?)
Thing is, in 1970, Ford had TWO very different 429/375 engines:
Mustang 429/375 = Boss 429 (near-Hemi)
Torino 429/375 = Super-CJ (canted valve wedge)
I also don't see much history of the 429/375scj in NHRA, if it was factored to 410hp that would explain why.
But was the 410hp applied to the 429boss/375 or the 429SCJ/375?
Or maybe both!?!!??