Re: COPO, Drag-Pak, CJ II, (FX) Secrets
 

Name one rule that was changed to accommodate them....

Re: COPO, Drag-Pak, CJ II, (FX) Secrets
 

Easy enough....
Section 11A, page 1 Stock Cars
SECTION 11
STOCKCategory is based on a handicap start using the NHRA index
system; breakout rules apply. Note: For more information on the
Automatic Horsepower Factoring System, visit NHRARacer.com.
SECTION 11A
STOCK CARS
DESIGNATIONS
FS/AA, FS/A, FS/B, FS/C, FS/D, FS/E, FS/F, FS/G, FS/H, FS/I,
FS/J, FS/K, FS/L, AA/S, A/S, B/S, C/S, D/S, E/S, F/S, G/S, H/S,
I/S, J/S, K/S, L/S, M/S, N/S, O/S, P/S, Q/S, R/S, T/S, U/S, V/S,
and W/S (manual transmission), preceded by car number. AA/
SA, A/SA, B/SA, C/SA, D/SA, E/SA, F/SA, G/SA, H/SA, I/SA, J/
SA, K/SA, L/SA, M/SA, N/SA, O/SA, P/SA, Q/SA, R/SA, T/SA, U/
SA, V/SA, and W/SA (automatic transmission), preceded by car
number. AAF/S, AF/S, BF/S, CF/S, DF/S, and EF/S (front-wheel-
drive), preceded by car number.
Reserved for 1955 or newer model-year factory-production
automobiles and some sports cars. Classified per NHRA
performance rating as listed in the Official NHRA Stock Car
Classification Guide. Only those cars listed in the guide are
eligible for competition. All cars in Stock classes must be factory-
production assembled, showroom available, and in the hands of
the general public. A minimum 500 units of a particular body style
must be produced

Should we go on?

Re: COPO, Drag-Pak, CJ II, (FX) Secrets
 

Actually, the classes themselves were created to stop all the crying. The cars came first...

Re: COPO, Drag-Pak, CJ II, (FX) Secrets
 

Here's another one:


"Aluminum
center section permitted only on vehicles that were originally
equipped with same."


In other words, a "stock" CJ II center section is not allowed in another Ford CJ 1

Re: COPO, Drag-Pak, CJ II, (FX) Secrets
 

More...

"Porting, polishing, welding, epoxying and acid-porting prohibited.
Combustion-chamber modifications prohibited. "

I don't see where CNC porting is allowed

Re: COPO, Drag-Pak, CJ II, (FX) Secrets
 

Good GAWD Gump, you ever seen a nine inch FORD rear end in a 69 Camaro stock eliminator car ????

Re: COPO, Drag-Pak, CJ II, (FX) Secrets
 

I maybe wrong be wasn't AMC the first to offer ported heads?


Stan

Re: COPO, Drag-Pak, CJ II, (FX) Secrets
 

I guess the argument has now turned to interpreting the rules?

Every turn-key late model factory car came with a 9" rear and aluminum center section. The 2008-up rule came when racers started converting the factory cars to their production version around 2015.

Factory ported heads were in the guide before 2008.

Re: COPO, Drag-Pak, CJ II, (FX) Secrets
 

Mr. Gump, just answer my question …..

Re: COPO, Drag-Pak, CJ II, (FX) Secrets
 

[QUOTE=MR DERBY CITY;675015]Good GAWD Gump, you ever seen a nine inch FORD rear end in a 69 Camaro stock eliminator car ????[