Announcement

**JoeliusZ28** · December 17th, 2008, 04:47 PM

what made you pick the 306 cam?

also the 306 is NOT a 230/232, you have the correct duration earlier in your post.

**Kwazrollinz28** · December 17th, 2008, 04:48 PM

Originally posted by JoeliusZ28 View Post

what made you pick the 306 cam?

also the 306 is NOT a 230/232, you have the correct duration earlier in your post.

Well my dad said the 306 is a good cam i've been doing some looking and it seems good.
and my 502 cam Isn't what i wanted i wanted a 503 Which isnt much bigger but either way

I know that I said example youtube sucks balls for finding videos on cams.
read the whole post lol

I have a 250 dollar Limit, If you can find me a cam that should work with my heads setup that would be great.

**JoeliusZ28** · December 17th, 2008, 04:55 PM

Ive read that the 306 has terrible low end, and im not really sure what the idea of such a large split in the duration is. LT1s like a split duration because of the mediocre head flow on the exhaust side. a small split like the 224/230 makes sense but i never understood why you would want a 14 degree split. The 306 is one of oldest LT1 cams, make sure you do some homework on it before you select that one over all the other options that are available today. Ive read that it is a very peaky cam that offers little to nothing under 3k rpms, and the top end power isnt all that great in comparison to others cams on stock heads. From what ive seen they normally dyno 350ish rwhp. A smaller cam will dyno less but total HP across the range will be greater. I would use a GM847 over a 306 personally. bigger, but Ive seen them make power down low.

**Kwazrollinz28** · December 17th, 2008, 04:58 PM

GM847 I heard of them but Didn't know If i should get one.

Okay yeah I want power as well Anything in mind???

but heres what it sounds like. I want a good sounding cam and good power
http://www.ratemychevrolet.net/showv...?videoId=12916

**JoeliusZ28** · December 17th, 2008, 05:02 PM

here's the thing to keep in mind: Ideally I would have gone with a huge cam on mine, but a huge cam likes huge RPMs. Stock heads choke out when a big cam starts making power. And then your spinning a high RPM for no reason which puts the stock bottom end at risk with no benefit (stock bottoms dont like more than 6400 RPM).

here's the GM847 which I really like, but keep an eye on this girl's tachometer and youll see the reason I am avoiding it until i can afford heads and a bottom end.

http://www.youtube.com/user/foxayroxay25

DO NOT CHOOSE A CAM FOR SOUND!!!

If you want a mean sounding cam, i recommend doing what i did and using a tighter lobe seperation on a smaller cam. It will chop just as hard at idle but smooth out up top.

**Kwazrollinz28** · December 17th, 2008, 05:06 PM

Originally posted by JoeliusZ28 View Post

here's the thing to keep in mind: Ideally I would have gone with a huge cam on mine, but a huge cam likes huge RPMs. Stock heads choke out when a big cam starts making power. And then your spinning a high RPM for no reason which puts the stock bottom end at risk (stock bottoms dont like more than 6400 RPM).

here's the GM847 which I really like, but keep an eye on this girl's tachometer and youll see the reason I am avoiding it until i can afford heads and a bottom end.

http://www.youtube.com/user/foxayroxay25

DO NOT CHOOSE A CAM FOR SOUND!!!

If you want a mean sounding cam, i recommend doing what i did and using a tighter lobe seperation on a smaller cam. It will chop just as hard at idle but smooth out up top.

My bottom end is stock but thats it, I've had my heads worked over to a pretty penny.

wow it does like the high RPM's not sure if i like that at 6500-6700 my motor screams though lol

**JoeliusZ28** · December 17th, 2008, 05:08 PM

you can take a chance if you want then, but that will be very tempting to shift around 7K - and a stock bottom end wont like that. I would use that cam only if you are prepared for a bottom end rebuild in the near future. It might suprise you and last a long time - but dont count on it.

**Kwazrollinz28** · December 17th, 2008, 05:10 PM

Originally posted by JoeliusZ28 View Post

you can take a chance if you want then, but that will be very tempting to shift around 7K - and a stock bottom end wont like that. I would use that cam only if you are prepared for a bottom end rebuild in the near future. It might suprise you and last a long time - but dont count on it.

I'd rather not take that chance

mine usually shifts at 6500-6700 though.

I want a cam that sounds good and performs good, So its the GM847 or the 306 I'm not sure now

If this is the GM847 I don't think i want it as you said high rpms is where it makes power so im thinking 306 only

GM12370847 --- 234@ .539/ 242@ .558 (1.5RR)--- 112 LSA --- 2000-6800

ALSO all i have is a 2200 stall converter im planning on getting a 2800 in the summer

**JoeliusZ28** · December 17th, 2008, 05:12 PM

do some reading of youre own in the LT1 section on camaroz28.com. there is TONS of information on those cams there.

Also one thing to keep in mind is that the stock tach is not accurate. If you shift your stock tach about 6500 you might not even be hitting 6k in reality. a GM847 will want to peg the stock tach haha.

the latter makes posted information tough to distinguish from on the boards as there are a lot of people that dont realize that. A Dyno sheet or any aftermarket tach will show the true RPM.

**Kwazrollinz28** · December 17th, 2008, 05:17 PM

Originally posted by JoeliusZ28 View Post

do some reading of youre own in the LT1 section on camaroz28.com. there is TONS of information on those cams there.

Also one thing to keep in mind is that the stock tach is not accurate. If you shift your stock tach about 6500 you might not even be hitting 6k in reality. a GM847 will want to peg the stock tach haha.

the latter makes posted information tough to distinguish from on the boards as there are a lot of people that dont realize that. A Dyno sheet or any aftermarket tach will show the true RPM.

Hmmm did not know that good to know thanks, now i won't be such a pansy in the high rpms lol

I have to rebuild my bottom end next year but i dont have the cash right now.
So I'll be getting the 306 for now, my dad says the 847 is to big for me. and Won't let me get that. i might be able to buy his 306 cam from him and save 40 bucks

**DETROITMUSCLE** · December 17th, 2008, 05:22 PM

A 2800 stall seems like a terrible choice with your cam selection, what gears?

**Kwazrollinz28** · December 17th, 2008, 05:25 PM

Originally posted by DETROITMUSCLE View Post

A 2800 stall seems like a terrible choice with your cam selection, what gears?

3.23 right now, I will be putting in a 3.42 this summer
but i still have the 2200 should i keep that?

Also My dad has this cam And it doesnt seem bad should i get one like this instead???

http://www.atlanticspeed.com/product...1&idcategory=0

**JoeliusZ28** · December 17th, 2008, 05:47 PM

i think he was saying thats too small of a stall converter for that cam. And i dont know if i would expect the 306 to be any less peaky than an 847.

**JoeliusZ28** · December 17th, 2008, 05:49 PM

wait, your dad says you cant have an 847 but he suggested the one in the link??? thats like the same size. Thats a huge cam.

you dont need a huge cam for a nice idle, here is my 226/234

http://www.youtube.com/watch?v=0mjQj...e=channel_page

Log in

Announcement

LT1 cam question

LT1 cam question

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment