Best cam for my car?
 

I have a LT4 hot cam sitting in my closet, and I plan on modding this winter. So... I was wondering... What is the best/most aggresive cam that I could put in my 95 LT1 with the stock internal replaced? I really want to get rid of my LT4 hot cam. I want something I can hear with a nice lob to it. Any suggestions?

Well it's going to depend on how in depth you want to go with mods. If it's going to be just a cam then most people are going to say GM847 or cc306. I personally really like my Combination Motorsports 233/239. Maybe I'm a lil bias. Any of these cams will do exactly what you want and perform well too. You will need supporting mods and a good tune.

What are the specs of the GM847?

Big.

I dont have exact #'s but they can be easily searched.

As for cam, decide what the car is going to be used for, there are a varity of cams to choose from. Just dont get the blower cam with out the blower. A friend did that and it certainly an under acheiver.

Is your goal to have a fast car or to be able to say "mine is bigger than yours"?

the biggest you want to go on a stock headed car is the cc503. cc306 and gm847 are way to big.

sorry but no. A lot of people have made good power with those cams on stock heads. True, when you get into larger cams the heads become the limiting factor, but saying the cc305 is the largest you can do with stock heads is way off base.

Take a look at this thread for example. The cc305 would not put you anywhere near 364/373.

^ I agree.

no comment....im not going to argue. :punch: .....o and i said 503 not 305. but w/e

ok my bad, but still... :engarde:

the 306, 847, etc are some of the oldest choices out there and a ton of people have run those on stock heads and made more than smaller cams will make.

so the next question becomes what heads should you run. I am currently looking at a 97 ws6 54k w/4.10's m6 fullexhaust and i want a big cam. I was looking at the LE2 or 3 package but would stock heads be able to hold a monster cam? sorry for hijacking but i was gonna start a similar thread soon. Also who makes a decent aftermarket head for ltseries motors? i kno afr or trickflow but is that what were limited too and also would lou elliot heads work for a "big" cam, i thought i saw someone running a cam close to the .600 mark and higher 250 duration. I know what ls1's will take but 400rwhp sounds great w/the le2 package w/the mods he recomends but i wanna take it a lil further. Daily Driveability is not a huge concern even tho i would DD this car i drive a highway 10miles each way. what do you guys think? I mean i am willing to go completly custom on a grind for the cam just want some suggestions

What I've gathered from several sources is that anything higher than mid 230s in duration and/or over .570" lift will be too big for a street car. That is, of course, a matter of opinion, but cam surge and idle tuning can become issues. I have GTP stg 2 LT4 heads and I'm puttin down 375rwhp w/ a little hotcam. LE heads seem to bring results(same w/ AI), so you can't go wrong there. I say go with one of the aforemention heads(also the ones you named would be good) and a custom cam. Talk to Craig from GTP(I can get you his # if you like) He will suggest a cam tailored to your exact pair of heads based on their flow #s, ccs, etc.. as well as your specific set up and intended use.

personally i dont care if i drive a damn 8 sec race car on the street ill manage, as long as it has a/c im straight. Thanks for the advice and 375 is a damn good number w/a lt4 hotcam for sure w/an auto. I am just waiting to sell my damn truck to buy this car, clean white ws6

Again, I don't really think these kinds of generalizations work. It might make more sense if you had said "too big for a stock displacement N/A street car", but even then when you consider things like other mods, tuning, etc that might not even be true.

Thanks for all your responses... how is a CC503 compared to an LT4 hot cam in terms of specs?

They are very different. Do a search and see what you find. There are a ton of people asking the same exact questions. This might help, too.

http://www.getonitracing.net/forum/viewtopic.php?t=376