Manual trans only?
 

In an older combo, like my aging fleet of antique iron, some engine combos came with a manual trans only requirement in the Tech Bulletins. I need to update my tech bulletins, but does that stipulation still exist? Question revolves around a 68 Chevelle with a 327/325 horse engine in Stock . Has that manual trans rule been deleted?

Re: Manual trans only?
 

Nope.

Re: Manual trans only?
 

Re: Manual trans only?
 

You should ask NHRA since they allowed the 1967 Ford Fairline R-Code 427-425HP combination to run an automatic. All the R-Code Fairline's were stick, 4-speed cars only.
When I asked NHRA many years ago, I was informed they were allowed to run an automatic because it was available in the other models of the car.
Under this premise, I believe they should allow you run an auto, the same should apply to the 1969/1970 Mustang Boss 302 and the 1971 Boss 351.
What's your opinion Billy Nees? :rolleyes::D

Re: Manual trans only?
 

I know that the 396/375 option was 4 speed only in its factory incarnation,but they seem to be legal with automatics, I was wondering if it was a rule change. I was thinking about the 327/325 engine, same as the Corvette 350 horse version. That thing would be legal with a 4 speed in my 3900 pound Malibu wagon. Puts a new emphasis on the word 'break' in the term 'weight break'.

Re: Manual trans only?
 

The 327-325 is a stick only combo in the 68 Chevelle and Nova.

Re: Manual trans only?
 

Thunderbolt was only available with 4 speed (I believe). Now runs Stock with automatic??

Re: Manual trans only?
 

1967 Fairline R-Code; Thunderbolt is a 1964 car.

Re: Manual trans only?
 

Bob,you would know! I guess it's not an across the board rule. Incidentally, I read that around 20 of the original Thunderbolts had the big Lincoln cast iron 3 speed automatics that were out there prior to the C-6. Must have really enhanced overall vehicle weight.

Re: Manual trans only?
 

I have always read that more Thunderbolts had automatics than four speeds. Most of them were switched over to four speeds pretty fast I would guess. Jody will wander in here and set it right soon I guess.

Roland