I did 4-7 cam change

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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!

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