CLASS RACER FORUM

CLASS RACER FORUM (https://classracer.com/classforum/index.php)
-   Stock and Super Stock Tech (https://classracer.com/classforum/forumdisplay.php?f=4)
-   -   Pure stock 340 Mopar (https://classracer.com/classforum/showthread.php?t=38756)

X-TECH MAN 02-09-2012 09:41 AM

Re: Pure stock 340 Mopar
 
Quote:

Originally Posted by James L Miller (Post 308513)
I think the current NHRA specs for a 1969 340 still apply to Pure Stock. The cam lift is higher on the exhaust. I think the service manual lists it as .429"/.444" or something like that, but Chrysler fed NHRA some enhanced numbers way back when.

HP Disp Deck Cl. Valve notch Int./Exh. Valve Cam lift
275 340 DP .045ab Flat w/n 5.45 cc 2020/1600 462/473 .035 Outer w Damp

I have 2 sheets of specs. The one dated Feb 1969 lists the lift at .467/.473 in one book.The duration is the same. The other sheet in my other book I have is dated the same Feb. 1969 but lists the lower lift . Go with the higher one. Chrysler did some funy things back in that era. Its good that you caught it.
Thanks.

Mike Taylor 3601 02-09-2012 08:00 PM

Re: Pure stock 340 Mopar
 
Also have to keep back seat in pure stocker w/roll bar,I had to put mine back in which I like it better with it anyway
Mike Taylor 3601

Chipper Chapman 02-10-2012 01:20 AM

Re: Pure stock 340 Mopar
 
Todd, I had the monte set up for g/ps. No x pipe or h pipe. It's my beleif that an x pipe would help if you have cheaper, non-equal length primarys. I never got the time to play with it on the monte. Spent too much time playing with the q-jet! Even though you're running a stock cam, a "healthy" converter will really help that low po (by comparison to a true stocker) engine get the car going wink wink.

Steve Stickel 02-11-2012 02:35 PM

Re: Pure stock 340 Mopar
 
Ihra Pure Stock

So, roll bars as a safety item is OK , would weld in frame connectors be allowed to tie it all together?

Steve

Todd Boyer 02-11-2012 05:38 PM

Re: Pure stock 340 Mopar
 
Quote:

Originally Posted by Steve Stickel (Post 308952)
Ihra Pure Stock

So, roll bars as a safety item is OK , would weld in frame connectors be allowed to tie it all together?

Steve

I can't see frame connectors being a problem, I'm putting them in without a roll bar, but we should wait for Terry to chime in here on it.

Todd Boyer 02-11-2012 07:58 PM

Re: Pure stock 340 Mopar
 
Terry, I see in the 2012 rule book that 9x30 tires are legal as well as "accepted aftermarket" ignitions. Would those include like a MSD 6AL for example ?

Terry Witzel 02-12-2012 12:29 PM

Re: Pure stock 340 Mopar
 
9x30 tires? Does that include radial slicks? I showed up once at 42 with a set on my Camaro and was told to 'make sure that they were off the car the next race I went to".

X-TECH MAN 02-12-2012 03:49 PM

Re: Pure stock 340 Mopar
 
Quote:

Originally Posted by Todd Boyer (Post 308983)
I can't see frame connectors being a problem, I'm putting them in without a roll bar, but we should wait for Terry to chime in here on it.

Its been 10 years since I delt with any of this. I heard they increase the tire diameter to 9X30's. In the beginning many years ago only 9X28.5 was allowed so the fender well lips would not have to be "Massaged". Tied frame members were allowed early on. You might want to contact Mike Baker, Hank Blankenship, or maybe Danny Waters will jump in here. Electronic ignition conversions are allowed but the OEM distributor must be used. Again I would check with Mike Baker or one of the other guys still working.

Todd Boyer 02-12-2012 05:02 PM

Re: Pure stock 340 Mopar
 
Quote:

Originally Posted by X-TECH MAN (Post 309100)
Its been 10 years since I delt with any of this. I heard they increase the tire diameter to 9X30's. In the beginning many years ago only 9X28.5 was allowed so the fender well lips would not have to be "Massaged". Tied frame members were allowed early on. You might want to contact Mike Baker, Hank Blankenship, or maybe Danny Waters will jump in here. Electronic ignition conversions are allowed but the OEM distributor must be used. Again I would check with Mike Baker or one of the other guys still working.

Cool, thanks Terry.

65signet 02-14-2012 03:19 PM

Re: Pure stock 340 Mopar
 
Quote:

Originally Posted by Todd Boyer (Post 308351)
John, did you run the Flowtechs in an A-body? I'm wondering how they fit?


The flowtechs do not fit good at all, they hit the T bars and other places, i ran then on A body for about a year took them off and intalled Hooker super comps, the fit and performance is very good.


All times are GMT -4. The time now is 06:32 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright Class Racer.com. All Rights Reserved. Designated trademarks and brands are the property of their respective owners.