"Old School" Stocker Cams

Ralph A Powell · 10-20-2020, 07:41 PM

And Gapp and Roush. I herd that he was working for Roush after he closed his shop.

Mike Taylor 3601 · 10-20-2020, 09:51 PM

I can say,I have ran under the old style rules spring pressure and lift, duration and overlap and it having to check.... and I have and do run under current rules....
I would pick current rules on cam,lifters and springs...been there done the stock pressure spring,which was checked...and duration overlap....
my IHRA pure stock combo 305/160/230 ABSOLUTELY ate springs and valves and it LOVED the taste of them... if nothing went wrong about 35-50 runs heads were coming off for valve job, valves and springs....

present rule stocker... I have one right now in D3 with 3 seasons on engine and same springs... had one with 500 runs on cam and lifters...had 300+repeatedly

I will take current rules on springs...
however if I built another stocker it would be a roller cam car... no other reason than eliminating cam break in...

James L Miller · 10-21-2020, 01:32 AM

Any of the Mopar 340 guys ever run either of these cams? I think the Lunati is from the 1990s, GK maybe the 1970s?

SSDiv6 · 10-21-2020, 11:37 AM

Quote:

Originally Posted by James L Miller

Any of the Mopar 340 guys ever run either of these cams? I think the Lunati is from the 1990s, GK maybe the 1970s?

That GK cam was the low-lift version from the 1980's. The GK 041/560 was the higher lift version.

10-20-2020, 07:41 PM	#1
Ralph A Powell Member Join Date: Oct 2017 Location: Bay City Texas Posts: 389 Likes: 2 Liked 225 Times in 136 Posts	Re: "Old School" Stocker Cams And Gapp and Roush. I herd that he was working for Roush after he closed his shop.

10-20-2020, 09:51 PM	#2
Mike Taylor 3601 VIP Member Join Date: Oct 2008 Location: Somerset,Ky Posts: 1,371 Likes: 353 Liked 306 Times in 103 Posts	Re: "Old School" Stocker Cams I can say,I have ran under the old style rules spring pressure and lift, duration and overlap and it having to check.... and I have and do run under current rules.... I would pick current rules on cam,lifters and springs...been there done the stock pressure spring,which was checked...and duration overlap.... my IHRA pure stock combo 305/160/230 ABSOLUTELY ate springs and valves and it LOVED the taste of them... if nothing went wrong about 35-50 runs heads were coming off for valve job, valves and springs.... present rule stocker... I have one right now in D3 with 3 seasons on engine and same springs... had one with 500 runs on cam and lifters...had 300+repeatedly I will take current rules on springs... however if I built another stocker it would be a roller cam car... no other reason than eliminating cam break in... Last edited by Mike Taylor 3601; 10-20-2020 at 09:55 PM.

10-21-2020, 01:32 AM	#3
James L Miller Member Join Date: Apr 2005 Posts: 494 Likes: 6 Liked 25 Times in 16 Posts	Re: "Old School" Stocker Cams Any of the Mopar 340 guys ever run either of these cams? I think the Lunati is from the 1990s, GK maybe the 1970s? Attached Thumbnails __________________ Mopar 2 Ya!