Steve Straus

I found a good deal on a lunati cam and I'm interested if this is a good cam profile to use on a 468. I have a 4 speed, so I want a lumpy idle, but I don't want the thing to be unstreetable. Is this too mild, too wild? What should I expect from this cam. I haven't bought it yet.

Thanks

RPM Range: 1500-4500 Duration @.050: intake 204 deg, exhaust 214 deg opens/closes @ .050: intake -06deg BTC 43deg ABC exhaust 43deg BBC -09deg ATC

Gordonm

204 and 214 Duration at .050. That sounds very mild. You won't get a lumpy idle with that cam on a 468. I would think you should go to around 230+ on duration at .050 to start to get a lumpy idle. I personally like around 240 to 250 at .050. The cam you are looking at is a mild street cam

Jvette73

Thats a very mild cam. Especially for a bigblock. I think your after somethin bigger than that.

Steve Straus

I definitely don't want that. If anyone is interested in it here it is.
http://cgi.ebay.com/ebaymotors/aw-cg...434204&r=0&t=0


[Modified by Steve Straus, 5:19 PM 1/19/2002]

Jvette73

Check out the Compcams XE268 or XE274. The 274 will give you some rumble in a bigblock @ 1800 to 6000 rpm.

Steve Straus

I've always been partial to Crane cams, but I've always heard good things about comp cams. I have some research to do..


[Modified by Steve Straus, 5:19 PM 1/19/2002]

bence13_33

Steve:
I agree with Gordon, that is a really mild cam for a big block. This rebuild I'm going with the Comp Cams 294S solid lifter cam. I'm going to see how I like it, if I find it unstreetable I'll kick it down a notch to the 282S...I'm hoping this won't be the case :). If you are after a hydraulic cam many people on this forum who are rebuilding 454s seem to be going with the Comp Cams XE274.

Jvette73

Crane makes similar cams. I just thought those types of profiles were good. Check the details and check with Crane for similar ones.

Ganey

Steve

You want a min. Comp Cams 280H or XE274.


350 guys

No need to check the link on that cam. Would put more cam in a girl's stock auto. ! Slightly better than stock L-48 cam.

Larry B.

Steve... Some of the older cams from the 60's-70's had real nice lopey idles and still were streetable. Newer technoligy cams develope more power and torque without sounding like a race car. The newer cams are designed to work good on today's stuff. Most cams of today are designed to work with lower compression so you can use the pump gas that we get today.

Jvette73

A good question is what compression will you be running? There is such a wide variaty of cams to select from you can match your cam perfectly to your ratio for the best performance from your setup. Higher compression will be pump gas tollerable if the cam is the big enough.

Steve Straus

I was thinking of running 10.25:1 or so. I'm still deciding on a game plan for this engine. I have the wife's backing on it and we've set aside the monthly budget for parts.

I was planning on running 92 octane in the car. I want this car to make a lot of HP and sound REALLY mean.

I understand fully how a cam works, I just haven't done enough with cams to be able to know what duration, lobe seperation (I assume 110 degree) etc. I should be looking for. I don't want to turn this topic into a huge thread because I know this has been discussed to death on this forum :).

Jvette73

With 10.25 to 1 on a smallblock go with XE268. Bigblock go with XE274. Just my pick for a plenty hot streetable setup for C3 Corvette.

Bob Turner

Steve,

That Lunati cam is quite mild. The '74 hydraulic cam was a 212/214 (intake/exhaust duration at .050)!!!

As some of the others stated, the XE-274H (Comp Cams) is a great choice for the BB buildup.

230/236 Duration at .050 (intake/exhaust)
.552/.555 lift
110 LSA

Chevy High Performance got 480Hp with this cam and the following:

9.0 to one CR
Demon 850
Performer RPM intake

I bought the cam and now I am wondering if I should go with Comp Cams roller version which is similiar in duration (230/236), with less lift, and 112 LSA than the XE274H. (It is a Extreme Marine roller cam)

(I haven't decided to go for it yet because those cams are expensive with the roller lifters!!!)

Bob :cheers:



[Modified by Bob Turner, 12:52 AM 1/20/2002]

Steve Straus

Any opinions on the edelbrock 2162 cam?

marky mark

Steve, if you like Crane cams ask their techs what would happen to the H-278 Powermax cam if they dropped the LSA from 112 down to 110 or even 108. That's a good cam for your compression. I am thinking big block application so I reread your post and you have a 350 so it might not be the best idea for you.

Ganey is the cam "Guru" so ask him for a specific recommendation. My limited knowledge is that the higher the duration numbers and the lower the LSA the more "rumble" you get at idle.

Good Luck, Mark :flag :chevy

Steve Straus

It would be for a big block. I'm currenly looking at a package with an edelbrock 2162, does anyone have any experience or advice on that cam?