Pure stock 340 Mopar - Page 4

X-TECH MAN · 02-09-2012, 09:41 AM

Quote:

Originally Posted by James L Miller

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

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

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

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

Quote:

Originally Posted by Steve Stickel

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

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

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

Quote:

Originally Posted by Todd Boyer

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

Quote:

Originally Posted by X-TECH MAN

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

Quote:

Originally Posted by Todd Boyer

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.

02-09-2012, 08:00 PM	#32
Mike Taylor 3601 VIP Member Join Date: Oct 2008 Location: Somerset,Ky Posts: 1,372 Likes: 357 Liked 308 Times in 103 Posts	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

02-10-2012, 01:20 AM	#33
Chipper Chapman Member Join Date: Jan 2004 Location: Belmont N.S. Canada Posts: 473 Likes: 246 Liked 166 Times in 71 Posts	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.

02-11-2012, 02:35 PM	#34
Steve Stickel Member Join Date: Feb 2012 Location: South Coast, Massachusetts Posts: 146 Likes: 160 Liked 50 Times in 23 Posts	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

02-11-2012, 07:58 PM	#36
Todd Boyer Senior Member Join Date: Feb 2004 Location: Saint John NB Canada Posts: 561 Likes: 30 Liked 6 Times in 5 Posts	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 ?

02-12-2012, 12:29 PM	#37
Terry Witzel Member Join Date: Nov 2001 Location: Marion,Ohio Posts: 247 Likes: 48 Liked 50 Times in 28 Posts	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".