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I did 4-7 cam change #1396584 03/03/13 12:50 PM 03/03/13 12:50 PM
Joined: Aug 2003 Posts: 4,055 Salina ks 572_dup2 OP Back On The Bumper!!
572_dup2 OP Back On The Bumper!! Joined: Aug 2003 Posts: 4,055 Salina ks	Ive also added 8-o2's an felt doing these 2 things at same time was good idea. 7611242-calvert.jpg (170 downloads) Last edited by 572; 03/03/13 01:05 PM. Shawn Jennings

Re: I did 4-7 cam change [Re: 572_dup2] #1396585 03/03/13 12:57 PM 03/03/13 12:57 PM
Joined: Mar 2006 Posts: 9,835 MI, usa dvw master
dvw master Joined: Mar 2006 Posts: 9,835 MI, usa	Quote: Ive also added 8o2s an felt doing these 2 things at same time was good idea. 1st cam to 2nd cam specs? 8o2? What Compression? Doug

Re: I did 4-7 cam change [Re: dvw] #1396586 03/03/13 01:13 PM 03/03/13 01:13 PM
Joined: Feb 2004 Posts: 6,257 acworth / N. georgia - south e... cheapstreetdustr master
cheapstreetdustr master Joined: Feb 2004 Posts: 6,257 acworth / N. georgia - south e...	are the 8o2s digital..how are you reading 8 ports? 365" Iron J heads,,3480lbs best 1.39 60ft on SS springs.10.54,124 mph ...6.67 1/8th et.average 60fts 1.46 w/ small cam &.063 no2 pill tagged & insured [image][/image]

Re: I did 4-7 cam change [Re: cheapstreetdustr] #1396587 03/03/13 01:25 PM 03/03/13 01:25 PM
Joined: Aug 2003 Posts: 4,055 Salina ks 572_dup2 OP Back On The Bumper!!
572_dup2 OP Back On The Bumper!! Joined: Aug 2003 Posts: 4,055 Salina ks	I didn't explain that very good. I have racepak with an o2 sensor in every header tube. Shawn Jennings

Re: I did 4-7 cam change [Re: 572_dup2] #1396588 03/03/13 01:27 PM 03/03/13 01:27 PM
Joined: May 2011 Posts: 4,489 northern,Ohio,USA C Clanton master
Clanton master C Joined: May 2011 Posts: 4,489 northern,Ohio,USA	Quote: I didn't explain that very good. I have racepak with an o2 sensor in every header tube. Interesting!I would like to see the headers if you get the chance. GOTBOOST!New improved with Victor heads. http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/

Re: I did 4-7 cam change [Re: 572_dup2] #1396589 03/03/13 01:31 PM 03/03/13 01:31 PM
Joined: Jan 2003 Posts: 25,920 United Socialist States of Ame... T tboomer Too Many Posts
tboomer Too Many Posts T Joined: Jan 2003 Posts: 25,920 United Socialist States of Ame...	Nice,Shawn! Gonna run S/G again this year? Need your rear end checked out? Contact Grizzly!!

Re: I did 4-7 cam change [Re: Clanton] #1396590 03/03/13 01:31 PM 03/03/13 01:31 PM
Joined: Aug 2003 Posts: 4,055 Salina ks 572_dup2 OP Back On The Bumper!!
572_dup2 OP Back On The Bumper!! Joined: Aug 2003 Posts: 4,055 Salina ks	. 7611310-headers.jpg (201 downloads) Shawn Jennings

Re: I did 4-7 cam change [Re: 572_dup2] #1396591 03/03/13 01:40 PM 03/03/13 01:40 PM
Joined: Aug 2003 Posts: 4,055 Salina ks 572_dup2 OP Back On The Bumper!!
572_dup2 OP Back On The Bumper!! Joined: Aug 2003 Posts: 4,055 Salina ks	Super Comp Ted. Im going to get a round win at National event yet. 7611320-inthelane.jpg (150 downloads) Shawn Jennings

Re: I did 4-7 cam change [Re: 572_dup2] #1396592 03/03/13 01:41 PM 03/03/13 01:41 PM
Joined: Jan 2003 Posts: 25,920 United Socialist States of Ame... T tboomer Too Many Posts
tboomer Too Many Posts T Joined: Jan 2003 Posts: 25,920 United Socialist States of Ame...	Good luck!! Go get those piperacks!! Need your rear end checked out? Contact Grizzly!!

Re: I did 4-7 cam change [Re: 572_dup2] #1396593 03/03/13 02:05 PM 03/03/13 02:05 PM
Joined: Sep 2003 Posts: 1,049 San Jose Ca. boatracer572 super stock
boatracer572 super stock Joined: Sep 2003 Posts: 1,049 San Jose Ca.	Good move Sean!! you wont regret spending the $$$$ dded 8 o2 sensors a while back.very helpfull with tuning a pair af carbs. 7611379-IMG_1915.jpg (101 downloads) Last edited by boatracer572; 03/03/13 02:09 PM.

Re: I did 4-7 cam change [Re: 572_dup2] #1396594 03/03/13 02:07 PM 03/03/13 02:07 PM
Joined: May 2011 Posts: 4,489 northern,Ohio,USA C Clanton master
Clanton master C Joined: May 2011 Posts: 4,489 northern,Ohio,USA	Thx! GOTBOOST!New improved with Victor heads. http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/

Re: I did 4-7 cam change [Re: 572_dup2] #1396595 03/03/13 02:23 PM 03/03/13 02:23 PM
Joined: Nov 2009 Posts: 3,082 St. Paul , Mn. tubtar master
tubtar master Joined: Nov 2009 Posts: 3,082 St. Paul , Mn.	Quote: Super Comp Ted. Im going to get a round win at National event yet. This picture had me grinning like a kid at Christmas.

Re: I did 4-7 cam change [Re: tubtar] #1396596 03/03/13 02:41 PM 03/03/13 02:41 PM
Joined: Sep 2003 Posts: 1,049 San Jose Ca. boatracer572 super stock
boatracer572 super stock Joined: Sep 2003 Posts: 1,049 San Jose Ca.	headers before coating 7611435-IMG_0284.jpg (129 downloads)

Re: I did 4-7 cam change [Re: 572_dup2] #1396597 03/03/13 03:29 PM 03/03/13 03:29 PM
Joined: Mar 2006 Posts: 9,835 MI, usa dvw master
dvw master Joined: Mar 2006 Posts: 9,835 MI, usa	Quote: I didn't explain that very good. I have racepak with an o2 sensor in every header tube. Quote: OK I'm brain dead, that makes sense. Cam Specs?

Re: I did 4-7 cam change [Re: dvw] #1396598 03/03/13 05:27 PM 03/03/13 05:27 PM
Joined: Aug 2003 Posts: 3,101 cincinnati ohio M mcat4321 master
mcat4321 master M Joined: Aug 2003 Posts: 3,101 cincinnati ohio	i have read alot about 4-7 swap... is it really worth the effort? some of the BESt engine builders in the country dont seem to think so. no matter the order you have 2 side by side firing. some say it changes the deflection on a weaker crank adding a few ponies , but a good crank, no help.. im interested in what you experience

Re: I did 4-7 cam change [Re: mcat4321] #1396599 03/03/13 06:55 PM 03/03/13 06:55 PM
Joined: Jan 2011 Posts: 4,785 Utah and Alaska astjp2 master
astjp2 master Joined: Jan 2011 Posts: 4,785 Utah and Alaska	Quote: i have read alot about 4-7 swap... is it really worth the effort? some of the BESt engine builders in the country dont seem to think so. no matter the order you have 2 side by side firing. some say it changes the deflection on a weaker crank adding a few ponies , but a good crank, no help.. im interested in what you experience Its not just he 4-7 you also need the 3-2 swap, if it was not benificial, then there wouldn't be so many nascar teams using it and GM would not have used in in the LS series. I did a lot of research and it has to do with the power pulses in relation to the crank throw position. There are a few articles on this and mostly is had to do with creating a smoother running engine, not really for much more power. Tim 1941 Taylorcraft 1968 Charger 1994 Wrangler 1998 Wrangler 2008 Kia Rio 2017 Jetta I didn't do 4 years and 9 months of Graduate School to be called Mister!

Re: I did 4-7 cam change [Re: mcat4321] #1396600 03/04/13 04:32 AM 03/04/13 04:32 AM
Joined: Jan 2003 Posts: 20,176 Park Forest, IL slantzilla Too Many Posts
slantzilla Too Many Posts Joined: Jan 2003 Posts: 20,176 Park Forest, IL	Thing I've seen discussed most is it makes rod bearings last longer. "Everybody funny, now you funny too."

Re: I did 4-7 cam change [Re: slantzilla] #1396601 03/04/13 06:00 AM 03/04/13 06:00 AM
Joined: May 2009 Posts: 288 IL. Jerseyville J jg309 enthusiast
jg309 enthusiast J Joined: May 2009 Posts: 288 IL. Jerseyville	the 4 cyl. swap removes the harmoics & my engine runs a lott easer, got different sound aswell

Re: I did 4-7 cam change [Re: 572_dup2] #1396602 03/04/13 02:30 PM 03/04/13 02:30 PM
Joined: Jul 2005 Posts: 1,301 Penna 7 70satelliteguy pro stock
70satelliteguy pro stock 7 Joined: Jul 2005 Posts: 1,301 Penna	Shawn,off topic just a little but what size headers are those? Also, on the photo with your post I like the way those Good years look during a wheel stand. Not all bundled up or distorted for a car of your weight. What size are those and what pressure are you running in those? I have problems wearing out my sidewalls on my Good Years(31/14.0's)and only working well for 20-30 passes or so. Thanks MIke

Re: I did 4-7 cam change [Re: 70satelliteguy] #1396603 03/04/13 03:27 PM 03/04/13 03:27 PM
Joined: Aug 2003 Posts: 4,055 Salina ks 572_dup2 OP Back On The Bumper!!
572_dup2 OP Back On The Bumper!! Joined: Aug 2003 Posts: 4,055 Salina ks	2 1/4 - 2 3/8. An friend an i made those 11yrs. 14x32 Goodyear pressure was 10.5 Shawn Jennings

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