New Horse Power Ratings

Casey Miles · 07-14-2011, 02:39 PM

Stock Horsepower Changes

OEM NHRA New

Make CID HP HP HP Years Affected

Buick 350 175 266 262 73-74 Apollo

Chev 454 270/365 365 360 71-72 Chevelle

Pontiac 455 250 310 306 73-74 Firebird

Olds 455 380-390 371 362 68-69 Hurst

Stock Horsepower No Changes

OEM NHRA

Make CID HP HP Years Affected

Buick 350 155 240 77-79 Regal

GM 173 107/112 135 82-84 Camaro/Firebird

Chev 265 180 205 1955

GM 305 215 258 85-86 Camaro/Firebird

Chev 350 160/190 275 78-80 Camaro

Chev 350 245 310 73-74 Camaro

Chev 364 400 391 05-07 Corvette

Chev 396 375 ??? incomplete request

Chev 396 325 325 1968 Camaro

Chev 454 425 420 1971 Chevelle

Chev 454 390 415 1970 Corvette

Mopar 361 305 270 61-62 B bodies

Mopar 383 335 300 68-70 Challenger

Mopar 440 375 ??? incomplete request

Mopar 440 390 417 70-71 B bodies

Ford 302 225 215 89-92 Mustang

Ford 302 205 220 1993 Mustang

Pontiac 455 360 350 1970 GTO

Super Stock Horsepower Changes

OEM NHRA New

Make CID HP HP HP Years Affected

Chev 283 220 238 235 65-66 Big car

Chev 350 295/300 322 317 67-69 Camaro

Chev 454 425 475 469 71 Corvette

Ford 281 235 235 232 2010 Mustang

Super Stock Horsepower No Changes

OEM NHRA

Make CID HP HP Years Affected

Chev 427 430 476 1969 Camaro

Chev 454 390 415 1970 Corvette

Chev 350 295 327 1969 SS/GT no such combo

Chev 350 300 327 1969 SS/GT truck

no such combo

Chev 350 300 322 67-70 SS/GT

Mopar 383 ??? ??? 63-67 B Bodies incomplete request

Mopar 426 ??? 450 64-65 Coronet incomplete request

Mopar 488 400 425 93-98 Viper

Olds 350 170 255 77-80 Cutlass

Isaac Zane · 07-14-2011, 02:49 PM

wohoo!!! HP OFF!!!

Buick 350 175 266 262 73-74 Apollo

That and the daughters wedding almost here... Maybe I can get out racing again... (after a freshen-up)

BTW, I had NOTHING to do with it!

Jamie Greening · 07-14-2011, 04:50 PM

Sorry my bad, I have been corrected.

07-14-2011, 05:36 PM

Quote:

Originally Posted by Jamie Greening

Big congrats to Downing and Summers for making sure they were slow enough to get a hp reduction!!!! The system is really f'n working guys.

You are kidding, right?

John Kelley · 07-14-2011, 07:26 PM

:-)
Any comments, thoughts, or requests must be sent in writing to: National Hot Rod Association; Technical Department; attn: AHFS; P.O. Box 5555, Glendora, CA 91740; or e-mail, AHFS@nhra.com or bbachelder@nhra.com.
:-)

Ed Wright · 07-14-2011, 09:32 PM

Quote:

Originally Posted by clutch man

no chevy got hp ?

Look again.

Charley Downing · 07-15-2011, 06:09 AM

CI 281 232hp is SS only Jason.

What kind if system for HP do you guys want? 15 years ago you all cried about how the old HP system was not fair. So NHRA came up with what it has now. Now you all cry about this system. THERE IS NO FULL PROOF SYSTEM FOR HP.

Ed Wright · 07-15-2011, 08:44 AM

Quote:

Originally Posted by clutch man

please tell me i dont see

I'm not going to type them out for you, but if you will just readvit, there are two in S & two in SS. One SBC and one BBC.

07-14-2011, 02:39 PM	#1
Casey Miles Senior Member Join Date: Jun 2006 Posts: 706 Likes: 128 Liked 508 Times in 92 Posts	Re: New Horse Power Ratings Stock Horsepower Changes OEM NHRA New Make CID HP HP HP Years Affected Buick 350 175 266 262 73-74 Apollo Chev 454 270/365 365 360 71-72 Chevelle Pontiac 455 250 310 306 73-74 Firebird Olds 455 380-390 371 362 68-69 Hurst Stock Horsepower No Changes OEM NHRA Make CID HP HP Years Affected Buick 350 155 240 77-79 Regal GM 173 107/112 135 82-84 Camaro/Firebird Chev 265 180 205 1955 GM 305 215 258 85-86 Camaro/Firebird Chev 350 160/190 275 78-80 Camaro Chev 350 245 310 73-74 Camaro Chev 364 400 391 05-07 Corvette Chev 396 375 ??? incomplete request Chev 396 325 325 1968 Camaro Chev 454 425 420 1971 Chevelle Chev 454 390 415 1970 Corvette Mopar 361 305 270 61-62 B bodies Mopar 383 335 300 68-70 Challenger Mopar 440 375 ??? incomplete request Mopar 440 390 417 70-71 B bodies Ford 302 225 215 89-92 Mustang Ford 302 205 220 1993 Mustang Pontiac 455 360 350 1970 GTO Super Stock Horsepower Changes OEM NHRA New Make CID HP HP HP Years Affected Chev 283 220 238 235 65-66 Big car Chev 350 295/300 322 317 67-69 Camaro Chev 454 425 475 469 71 Corvette Ford 281 235 235 232 2010 Mustang Super Stock Horsepower No Changes OEM NHRA Make CID HP HP Years Affected Chev 427 430 476 1969 Camaro Chev 454 390 415 1970 Corvette Chev 350 295 327 1969 SS/GT no such combo Chev 350 300 327 1969 SS/GT truck no such combo Chev 350 300 322 67-70 SS/GT Mopar 383 ??? ??? 63-67 B Bodies incomplete request Mopar 426 ??? 450 64-65 Coronet incomplete request Mopar 488 400 425 93-98 Viper Olds 350 170 255 77-80 Cutlass

07-14-2011, 02:49 PM	#2
Isaac Zane Member Join Date: Nov 2001 Location: North Myrtle Beach, SC Posts: 361 Likes: 392 Liked 50 Times in 14 Posts	Re: New Horse Power Ratings wohoo!!! HP OFF!!! Buick 350 175 266 262 73-74 Apollo That and the daughters wedding almost here... Maybe I can get out racing again... (after a freshen-up) BTW, I had NOTHING to do with it! __________________ Isaac Zane STK 1237 J/SA Buick Apollo Patriot Guard Rider DOOF 43 Last edited by Isaac Zane; 07-14-2011 at 02:50 PM. Reason: panties were in a bunch.

07-14-2011, 04:50 PM	#3
Jamie Greening Junior Member Join Date: Jun 2007 Posts: 45 Likes: 0 Liked 0 Times in 0 Posts	Re: New Horse Power Ratings Sorry my bad, I have been corrected. Last edited by Jamie Greening; 07-14-2011 at 06:15 PM. Reason: I'm stupid

07-14-2011, 07:26 PM	#5
John Kelley Senior Member Join Date: Feb 2002 Location: Tightwad,TEXAS Posts: 911 Likes: 6 Liked 3 Times in 3 Posts	Re: New Horse Power Ratings :-) Any comments, thoughts, or requests must be sent in writing to: National Hot Rod Association; Technical Department; attn: AHFS; P.O. Box 5555, Glendora, CA 91740; or e-mail, AHFS@nhra.com or bbachelder@nhra.com. :-)

07-15-2011, 06:09 AM	#7
Charley Downing Senior Member Join Date: Sep 2007 Posts: 762 Likes: 16 Liked 653 Times in 89 Posts	Re: New Horse Power Ratings CI 281 232hp is SS only Jason. What kind if system for HP do you guys want? 15 years ago you all cried about how the old HP system was not fair. So NHRA came up with what it has now. Now you all cry about this system. THERE IS NO FULL PROOF SYSTEM FOR HP. __________________ Charley Downing 3548 STK Last edited by Charley Downing; 07-15-2011 at 08:06 AM.