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More 2020 End of Year Stock and Super Stock Horsepower Adjustments Announced

  • Jan 20, 2021
  • 1 min read

Stock/SS Horsepower Changes   complete for 2nd half rating period 2020

 

Engine Make     CID     OEM HP   NHRA HP   New HP     Years affected

 

Chev              196       105       112       108         1979 Monza

 

GM                 305 140-145       180       183         76-77 X platform

 

GM                 305       145-180 229-230 232         80-84 G Bodies

 

Chev              454       225       336       331         1976 GT/RWD

 

Chev              454       215       336       346         1975 GT/RWD

 

Mopar            318 150-165       230       236         81-83 Mirada

 

Mercury          302       140       145       149         1979 Zephyr

 

Ford               302       150       197       200         1986 Thunderbird

 

Pont               428       390       312       308         1968 GT/RWD

72114

 
 
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