I've been doing tons of research. Now I'm looking for opinoins on a few different cams. My lt1 has a stock bottom end, new bearings and rings. I don't want to be spinning it too high to make good power. My heads are iron, I will be cleaning them up a little, but no major porting is planned., probably bigger valves.

Cams I'm trying to decide between:

847
cc306
224/230.

Some seem to say these are too big for stock heads, but from what I've been reading with a good tun they will be fine.

I'm not to worried about idle, I'm looking for a nice lope, car is also a manual. My main concern is keeping some low end torque.

Rear end gears are 3:73's.

I'm impressed with some numbers I'm seeing with the 847, but I'm wondering what your opinoins are of that cam for my application.

Any other cams you think I should have a look at, let me know!!

Thanks, Matt

 

I would figure out exactly what work you are going to do on your heads so you can have a idea how good they will flow. Then call comp and have them custom grind one. Best way to make power is have a cam cut for your application

 

You mention not wanting to spin too high, what do you consider too high?

I consider both the cc306 and GM847 to be pushing that envelope for a stock bottom end car. If you have your mind set on an off the shelf cam, I would personally suggest the XE230/236 with a good valvetrain setup. If you are willing to get more power for a little more money, contact a custom cam grinder (ex. Bret Bauer) and they will take care of everything from there.

Just my $0.03 having recently been in your shoes.

 

The CC306 makes great high end power, but the duration on it makes it a little hard on lower rpms. For a stock bottom end and a cam that you don't want to spin high, I'd do something in the 23x/23x range on a 110 or 112 LSA.

Otherwise, I'd stick something like a CC306 or larger and spin it to 6500+

Mike

 

210/224 good cam............ peak power is at 3800 rpms, so if you have an auto plus a vig 3200 stall, youll be low 12's..........

 

My peak HP was at 5600RPM's peak torque at 4700 RPM's with the 210/224. Its a great street cam, if anything I gained low end torque with it. The #'s were a bit disapointing though, but I am running an automatic and the A/F was low 12's accross the board so that hurt me. I have a new tune on the way, but I probably wont have the money to dyno it any time soon.