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View Full Version : Cam Opinions


Shane
10-11-2005, 10:42:00 PM
Need opinions on this cam. The cam spec card is here :

http://www.compcams.com/Technical/Search/CamDetails.asp?PartNumber=12-206-2

I bought this cam at a swap meet for $25, not really knowing much about it, but hey for $25 I figured I could use it for something. Still new in the box.

What I'm building is basically a stock 350, w/ stock 882 heads w/ roller tip rockers. It'll have headers, alum intake, and probably a 600 CFM carb. I'm looking for good low end torque mainly. This is a budget engine build up, so not looking to spend a lot of money on this one. I will however buy a different cam and lifters if this cam is not what I'm looking for.

Thanks -

1978LT
10-11-2005, 11:28:00 PM
That is definitely a low end torque cam http://www.nastyz28.com/ubb/wink.gif I think you did well! If you want max low end/mileage, I'd go with a Quadrajet! It flows enough to feed that engine way up there, plus it's hard to beat for off idle and up torque/mileage. I run a Qjet on my 406 and it feeds it well plus I get better mileage than even a 600 Holley!

Mwilson
10-11-2005, 11:29:00 PM
Your gears & converter or man tranny?

Mwilson
10-11-2005, 11:31:00 PM
That cam is pretty much stock?

1978LT
10-12-2005, 04:44:00 AM
<font face="Arial,Verdana" size="2">Originally posted by Mwilson:
That cam is pretty much stock?</font>

I'd say it's 2 steps above stock. Great for a daily driver/max torque build and should get good mileage!

Shane
10-12-2005, 08:40:00 AM
The gears are stock 77 Z28 gears (3.42) with a stock convertor.

rogerh
10-12-2005, 09:58:00 AM
Shane, that cam is close to what I am running. Mine has a real nice idle, not much of a lope. Low end torque is real good, however, I have Sportsman II heads, headers, Eddy intake, QJet, and a stock converter. Here is my specs: http://www.compcams.com/Technical/Search/CamDetails.asp?PartNumber=12-208-2

[This message has been edited by rogerh (edited October 12, 2005).]

Shane
10-12-2005, 10:20:00 AM
One more thing. The rockers that I will be using are 1.6 ratio roller tip. Not 1.5.

Bumpstick71
10-12-2005, 04:05:00 PM
That dual energy cam is a very good street cam, I got one in my wifes car and I love it.

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If all else fails...Tap lightly with a 5lb hammer!

red 74
10-12-2005, 08:37:00 PM
with a 1.6 rocker arm that will give you 469lift int 469exh someone let me know if thats right.thats just off the top of my head

Shane
10-12-2005, 09:52:00 PM
<font face="Arial,Verdana" size="2">Originally posted by Bumpstick71:
That dual energy cam is a very good street cam, I got one in my wifes car and I love it.

</font>

Is this cam that I have a dual energy? I can't tell from the spec card.

red 74
10-12-2005, 10:17:00 PM
no its not

1978LT
10-13-2005, 06:12:00 AM
<font face="Arial,Verdana" size="2">Originally posted by Shane:
Is this cam that I have a dual energy? I can't tell from the spec card.

</font>

That's a regular 'ol High Energy cam. The lift on it is perfect for stock 882 heads.

Shane
10-13-2005, 07:53:00 AM
One small correction - the heads are 462624, which are 1.94/1.5, but I don't know what the CC is. Probably doesn't make much difference anyway.

hhott71
10-13-2005, 03:53:00 PM
I have that cam in my 71 Camaro.
Expect it to sound just a tad bit better than stock without the rumpity of a big cam.
All the power ACC work well and idles with the AC on at 650 rpm.

Acceleration from a dead stop is like factory cam, but at about 35 moh expect to feel another set of cylinders kick in, Its great on the highway.
This is with 2.73 gears, It would be a monster amount of fun with 3.42's

red 74
10-13-2005, 05:55:00 PM
heads are 75to86 350or400 76cc chamber and came with three different valve sizes 1.7\1.5or 1.94\1.5and 2.02\1.6

bananahammock
10-14-2005, 01:41:00 AM
Unless your worried about smog, i'd get a set of Vortec heads. My bone stock no portwork 906 castings are carrying my full body, T-top, power everything into the mid 12's (hoping for 12 flat by the time im done with it). Best part is that I paid $400 for the complete heads.

Bumpstick71
10-14-2005, 02:19:00 PM
Roger was the one with the dual energy cam. Didn't mean to confuse anybody.

------------------
If all else fails...Tap lightly with a 5lb hammer!

pdq67
10-14-2005, 11:03:00 PM
Ok, it's a dandy cam for a stock motor!!

It is about two steps up from the great stock -929 cam and will do a stock motor nicely, imho!!

pdq67

asphaltburner
10-15-2005, 02:38:00 AM
Very similar to my setup and mine kicks ass! Bought a Crane "towing " cam from Summit: 0.420, 262, advanced 4 degrees,...I did go with World heads (2.02/1.6 and 67cc chambers to give me 9.23:1) but 1.5 ratio roller tip rockers. I still have the 2.79 rear gears behind my TH350 and 2000 rpm stall converter. Out today burying the 130 mph speedo, and on the way back made two passes to get around six cars and a semi-tractor trailer, going from about 60 to 100 in two to three seconds. I need a stopwatch, otherwise I'd give you quarter mile times. I run a Weiand manifold with 1" spacer below a 625 Carter AFB. HEI, Hooker headers, turbo mufflers, and 2.5 exhaust exiting in front of the rear tires. Computer program says 424 ftlbs torque @ 2500 and 263 Hp (somehow I think it's closer to 300 to 350 Hp 'cause the car has got to weigh 3500 lbs easy) @ 3500. I do 4500 rpm shifts with the TH350, and I'll have to see if I can get a reasonable idea of quarter mile times. My 295/50/15's, trac bars, air shocks, and shackles eliminate slipage off the line. Car and performance parts for less than $5000. Geeze, I run regular unleaded! Just for fun check me out at http://www.cardomain.com/ride/639261. Todd.

Marv D
10-25-2005, 12:09:00 PM
Shane, be carefull here in what you do with pistons. Those big chamber heads, a piston sitting low in the bore, any dish,, and your going to have a 7:1 slug. I agree the cam is going to be killer for low end torque in a basically stock motor (with the 624 heads) IF you don't put together a combination that is horribly low on compression. What I'm getting at is say you use a Badger rebuilders D dish piston with the lowered deck height (some sit as much as .040 in the hole with a stock deck), then you add the 11ish cc "D" dish, a .040-.045" rebuilders gasket, the head could be 76-80cc,, all of a sudden the 355 is trying to run on 7.6-8.0:1 compression. If you used a full dish with 22ish cc you would be down to around 7.0:1,,, just be carefull what you choose there.

Let's assume your have a flat top rebuilders piston with a stock compression height and 6-8cc's of valve relief, stock deck height, a common .040 gasket and a 76cc head. You would be right around 8.4:1. the motor should run on tequila (let alone any garbage pump fuel you run across) and that cam ought to be dang near perfect for the compression, the convertor and the gears in a heavy vehicle. "Fast" it won't be,,,, but faster than stock it will. I wouldn't build a motor with less compression, and I don't think I'd run that cam in a motor with more compression,, IMO you hit the sweet spot for what your looking for, "IF" your package will make the compression.

1978LT
10-25-2005, 07:15:00 PM
624 heads were the 882 replacement, from what I understand. Still, most smog heads flow max at .450 or so lift, so you did well good in choosing cams, IMO!