tomsws6

iTrader: (2)

is a cc305 cam better than a lt4 hotcam? also how does it compare to a cc306? need to pass emissions but want more power. have lt4 hotcam 1.6rr port polish stock heads intake and 355cu. thanks guys

ss.slp.ls1

iTrader: (36)

https://ls1tech.com/forums/lt1-lt4-m...wap-guide.html

The CC305 is a 220/230 cam which is only 2 degrees more duration on both the intake and exhaust. It is definitely not worth doing the swap if you already have the LT4 hotcam installed. If you want more out of your car and still want to pass emissions then you might think about adding all the bolt-on's you can before adding some spray. If you don't want to go that route, then you need to ditch the emissions friendly mindset and get a real cam. For an M6 you might think about something like a 230/236 cam.

96lt1m6

iTrader: (31)

it really is not about one cam being better than the next it is more like which cam will compliment your intended combination and use......
it has also been proven that the stock cam can run as fast as 11.5 being a bolt on weight reduction car.....

duration at .050 is what really seperates the cams that you listed,the 306 specs makes this cam work higher up in the rpm which really needs to be a full bolt on car with gear etc. contrary to the 306,847 etc. cars a smaller cam would actually give better OVERALL performance but people still do it....so they actually have a car that sounds like a 10 second car that runs 12s