Lookin for NHRA Stock Class ET/MPH from 1970-71

Dwight Southerland · 12-11-2016, 04:58 PM

Interesting points that you bring out. Here is what I have found in the 1970 Classification Guide

1963 LWG is the same as currently listed. 7.82 factor and 425hp. That makes the shipping weight 3324 for a Galaxie 500 2dr hdtp. Probably the published weight to NHRA was 3325, but so goes rounding. I have seen the claimed shipping weight to be 3270 and 3300 in other publications over the years. An interesting fact about these cars is that the LW components were available on a wide variety of car models and body styles, from a 300 2dr sedan to a Galaxie 500 XL 2dr hdtp.

1964 lightweight component car. Only listed for a Galaxie 500 2dr hdtp. The current factor of 8.93 and 420hp makes the shipping weight 3750 lbs. In the 1970 Class Guide, the factor is 8.33. If the power rating back then was 425, then the shipping weight is 3540 lbs. However, I have no documentation that tells be what the engine was rated back then. But, if you assume that the 3750 shipping weight is correct, then the power rating was 450 (3750 / 450 = 8.333...), which in probably the case, since the Thunderbolt has a power-to-weight factor of 7.13 in the old book, and that would have the shipping weight at 3208, very close to the 3206 calculated from today's Class Guide.

12-11-2016, 04:58 PM	#11
Dwight Southerland VIP Member Join Date: Dec 2001 Location: Arkansas - In the middle of everything. Posts: 2,001 Likes: 64 Liked 780 Times in 194 Posts	Re: Lookin for NHRA Stock Class ET/MPH from 1970-71 Interesting points that you bring out. Here is what I have found in the 1970 Classification Guide 1963 LWG is the same as currently listed. 7.82 factor and 425hp. That makes the shipping weight 3324 for a Galaxie 500 2dr hdtp. Probably the published weight to NHRA was 3325, but so goes rounding. I have seen the claimed shipping weight to be 3270 and 3300 in other publications over the years. An interesting fact about these cars is that the LW components were available on a wide variety of car models and body styles, from a 300 2dr sedan to a Galaxie 500 XL 2dr hdtp. 1964 lightweight component car. Only listed for a Galaxie 500 2dr hdtp. The current factor of 8.93 and 420hp makes the shipping weight 3750 lbs. In the 1970 Class Guide, the factor is 8.33. If the power rating back then was 425, then the shipping weight is 3540 lbs. However, I have no documentation that tells be what the engine was rated back then. But, if you assume that the 3750 shipping weight is correct, then the power rating was 450 (3750 / 450 = 8.333...), which in probably the case, since the Thunderbolt has a power-to-weight factor of 7.13 in the old book, and that would have the shipping weight at 3208, very close to the 3206 calculated from today's Class Guide. __________________