What SBC cams are people running?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bryanw1968 · 12-07-2006, 03:25 PM

I am running the Exterme Engergy Comp 268.
I mentioned this before in an earlier post that I was having a tapping/ticking noise and I thought it was anything from colapsing lifters to loose rockers.
Turns out after talking to Comp and Trickflow(my new heads I installed) that the Extreme Energy cam is a noisy cam in general. The exhaust lobe profile closes so fast that it slams the valve shut and makes noise. It sounds SO much like I'm driving around in a truck with loose rockers and it's beginning to make me a little nutty.

What 'quiet' cams are ya'll runnin'?

70c10 · 12-07-2006, 03:36 PM

Xe262

b&a72 · 12-07-2006, 04:08 PM

Xtreme energy 274

bryanw1968 · 12-07-2006, 04:59 PM

Quote:

Originally Posted by b&a72

Xtreme energy 274

So you guys running XE cams aren't have noise issues?

b&a72 · 12-07-2006, 05:09 PM

Not that I noticed between the exhaust and the lope it is hard to tell.

**67 cst swb** · 12-07-2006, 05:16 PM

Im running a Sealed Power cam... 204/214 duration 420/443 lift on 112 lobe centers... a little smaller than yours, but no issues... works with stock engine components,... and sells for about $80.00-$90.00 new
Also.... works real well with a 600-800 over stock (or a 2000rpm) stall convertor.

crazy longhorn · 12-07-2006, 05:49 PM

Quote:

Originally Posted by bryanw1968

So you guys running XE cams aren't have noise issues?

I have an XE 268 in my 383, & its one noisey bastard

Some of the noise could be due to the stiff valve springs.....my Edelbrocks are good to .575 lift out of the box, so they are no doubt runnin some healthey pressures over the nose even tho the cam is not quite .500 on the lift. I suspect that you have pretty stiff springs on your heads also! For a cam that runs quiet, & is fairly cheap as a kit, try a crane enegizer 278. I have run a couple of these over the yrs, & will say it has a nice lope in a 327 or 355.....not too wild tho, & the valvetrain runs nice & quiet! The cam specs @ .467 lift @ the valve, & .222 duration @ .050. Its ground on 110 sep angles, & makes good low/mid power.....good street cam, but does like a 3.73 gear

L

bryanw1968 · 12-07-2006, 05:57 PM

You can't hear it from the outside with the hood closed.
But in the cab when you're driving it sounds like a sewing machine.

speedracer · 12-07-2006, 08:18 PM

comp magnum 292

ETsC10 · 12-07-2006, 09:34 PM

268 in a mild 327 LJ flat top engine. Motor hasn't been started yet but suspect I'll get that sweet bbrrrumpbbrrrumpbbrrrump

that we all love so dearly!

Southedisto · 12-07-2006, 09:35 PM

Quote:

Originally Posted by 67 cst swb

Im running a Sealed Power cam... 204/214 duration 420/443 lift on 112 lobe centers... a little smaller than yours, but no issues... works with stock engine components,... and sells for about $80.00-$90.00 new
Also.... works real well with a 600-800 over stock (or a 2000rpm) stall convertor.

Sounds like my cam, except 420/442.

BarryB · 12-07-2006, 09:52 PM

Comp Cam 280H. Haven't have any trouble out of it. Sounds good and runs good. But doesn't let the power hit until bout 2500. Then you feel it pull like a freight train.

BCOWANWHEELS · 12-07-2006, 09:53 PM

When Ever You Change A Cam You Need To Install The Valve Spring Made For It Buy The Same People Who Make The Cam. Same Goes For Lifters, Pushrods & Timming Chain. Its A Combination Setup. If You Get One Of The Parts Wrong It Throws The Hole System Out.
Bob

bullwinkle · 12-07-2006, 09:59 PM

Speedracer,
How do you like your 292 Magnum cam and what is your combo? I think that's what I'm going to run in a 383 with a BW ST-10 and 3:73 gears.

bryanw1968 · 12-07-2006, 10:08 PM

Quote:

Originally Posted by BCOWANWHEELS

When Ever You Change A Cam You Need To Install The Valve Spring Made For It Buy The Same People Who Make The Cam. Same Goes For Lifters, Pushrods & Timming Chain. Its A Combination Setup. If You Get One Of The Parts Wrong It Throws The Hole System Out.
Bob

Everthing is matched. Comp cam, Comp lifters, Comp push rods and Trick
Flow Kenny Duttweiler heads. The seated spring pressure is about 120lbs so it should all be o.k. You know how your "ear" is. If you're tuned in to a certain noise that's all you hear. It runs like a bat outta hell and as long as I'm not messing anything up that's all that matters.

I have a 284 cam and a bigger stall that I'm considering putting in. However, I think I'm going to go with either a different Comp or a different brand altogether to avoid the noise.

Thanks everyone for the replies.

B-dub

leadfoot067 · 12-07-2006, 10:08 PM

comp cams 288TL in a 60 over 327 with trick flow heads 3500 converter....

Slammed70 · 12-07-2006, 10:15 PM

Im still running the stock, tired, worn out cam in the original SBC.

But dont worry....once I get some free time Im gonna rip it out, throw it in my neighbors yard and install my roller 468FI/700R4.

Jim_PA · 12-07-2006, 10:58 PM

I went with the comp cams 270H, with 64cc aluminum heads, and -5cc flat tops, for about 10:1 compression. I think the heads and the rest of your combo is more important to know before you just pick a cam that is inheritently quieter than another.

1BadSS · 12-07-2006, 11:27 PM

Quote:

Originally Posted by speedracer

comp magnum 292

.

byrd · 12-07-2006, 11:39 PM

duration 204/214 lift 422/444 10 lobe center, I do not know what this info means other than this cams power band(correct term??) is 1800-2600 RPM's, should be about where Frank runs in drive around town and overdrive on the highway.

454_72_4X4 · 12-08-2006, 01:55 AM

My Comp XE268 runs quiet but I run stock TRW lifters too.
I've ran a couple Comp HE268 cams in a 328 and a 350. For a DD I like the HE cam better than the XE.

**CMars45000** · 12-08-2006, 08:34 PM

XR286R not run yet but will be in the 327

piecesparts · 12-08-2006, 08:48 PM

Running a Comp Cams Roller cam #XR264HR and Comp Magnum roller rockers in a 383 stroker, 9.5 to 1 ratio motor. The cam is set at 107 degrees. It is tied through a 2400 stall converter / 700R4 tranny to a 3.73 Posi, 12 bolt rear end. Ever since I installed the stall converter, the truck pulls hard from 2000 to 4500 and sounds good. The heads are not aluminum, but are cast Dart II Sportsmen, connected to a dual 2 1/2" exhaust system with long tube headers and flowmasters.

12-07-2006, 03:25 PM	#1
bryanw1968 Senior Member Join Date: Jul 2006 Location: Leander, Texas Posts: 850	What SBC cams are people running?? I am running the Exterme Engergy Comp 268. I mentioned this before in an earlier post that I was having a tapping/ticking noise and I thought it was anything from colapsing lifters to loose rockers. Turns out after talking to Comp and Trickflow(my new heads I installed) that the Extreme Energy cam is a noisy cam in general. The exhaust lobe profile closes so fast that it slams the valve shut and makes noise. It sounds SO much like I'm driving around in a truck with loose rockers and it's beginning to make me a little nutty. What 'quiet' cams are ya'll runnin'?

12-07-2006, 03:36 PM	#2
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,856	Re: What SBC cams are people running?? Xe262 __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads Last edited by 70c10; 12-07-2006 at 03:37 PM.

12-07-2006, 04:08 PM	#3
b&a72 Active Member Join Date: Oct 2006 Location: Mesa, AZ Posts: 682	Re: What SBC cams are people running?? Xtreme energy 274

12-07-2006, 05:09 PM	#5
b&a72 Active Member Join Date: Oct 2006 Location: Mesa, AZ Posts: 682	Re: What SBC cams are people running?? Not that I noticed between the exhaust and the lope it is hard to tell.

12-07-2006, 05:16 PM	#6
67 cst swb Senior Member Join Date: Nov 2001 Location: Rapid City, SD Posts: 2,281	Re: What SBC cams are people running?? Im running a Sealed Power cam... 204/214 duration 420/443 lift on 112 lobe centers... a little smaller than yours, but no issues... works with stock engine components,... and sells for about $80.00-$90.00 new Also.... works real well with a 600-800 over stock (or a 2000rpm) stall convertor. __________________ My Trucks: 1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project 1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver 1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck 1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck 2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White

12-07-2006, 05:57 PM	#8
bryanw1968 Senior Member Join Date: Jul 2006 Location: Leander, Texas Posts: 850	Re: What SBC cams are people running?? You can't hear it from the outside with the hood closed. But in the cab when you're driving it sounds like a sewing machine.

12-07-2006, 08:18 PM	#9
speedracer Blank Join Date: May 2005 Location: Southington, CT Posts: 221	Re: What SBC cams are people running?? comp magnum 292 __________________ 1969 lwb 4/6 drop 17x8-18x10 torque thrust II's 327-420hp 2004R 3.73 posi. 1977 Corvette 350-375hp 4speed, silver show car. 2002 S10 xtreme, work truck 2004.5 VW jetta GLI 1.8T 6speed, weekend warrior. 2013 Audi A3 TDI, the wife's car

12-07-2006, 09:34 PM	#10
ETsC10 Hand Crafted C-10 Join Date: Aug 2006 Location: Burien, WA Posts: 5,180	Re: What SBC cams are people running?? 268 in a mild 327 LJ flat top engine. Motor hasn't been started yet but suspect I'll get that sweet bbrrrumpbbrrrumpbbrrrump that we all love so dearly! __________________ . Forum Guidelines and Rules Buying and Selling Code of Conduct Become a Board Supporter! Truck FAQ Ellen... the boards artsy-fartsy, eclectic, truck-lovin' gal-member...

12-07-2006, 09:52 PM	#12
BarryB Senior Member Join Date: Jul 2006 Location: Blountville, Tn. Posts: 3,904	Re: What SBC cams are people running?? Comp Cam 280H. Haven't have any trouble out of it. Sounds good and runs good. But doesn't let the power hit until bout 2500. Then you feel it pull like a freight train.

12-07-2006, 09:53 PM	#13
BCOWANWHEELS Registered User Join Date: Nov 2006 Location: KINGSPORT,TN. Posts: 3,035	Re: What SBC cams are people running?? When Ever You Change A Cam You Need To Install The Valve Spring Made For It Buy The Same People Who Make The Cam. Same Goes For Lifters, Pushrods & Timming Chain. Its A Combination Setup. If You Get One Of The Parts Wrong It Throws The Hole System Out. Bob

12-07-2006, 09:59 PM	#14
bullwinkle New Member Join Date: Jun 2006 Location: Regina,Sk, Canada Posts: 30	Re: What SBC cams are people running?? Speedracer, How do you like your 292 Magnum cam and what is your combo? I think that's what I'm going to run in a 383 with a BW ST-10 and 3:73 gears.

12-07-2006, 10:08 PM	#16
leadfoot067 horsepower junkie Join Date: Aug 2003 Location: graham, washington Posts: 326	Re: What SBC cams are people running?? comp cams 288TL in a 60 over 327 with trick flow heads 3500 converter.... __________________ 67 short wide box,350/700r4/3.73posi 71 olds cutlass "S" mom bought new..12.30s@113MPH

12-07-2006, 10:58 PM	#18
Jim_PA Registered User Join Date: May 2005 Location: PA Posts: 2,696	Re: What SBC cams are people running?? I went with the comp cams 270H, with 64cc aluminum heads, and -5cc flat tops, for about 10:1 compression. I think the heads and the rest of your combo is more important to know before you just pick a cam that is inheritently quieter than another.

12-08-2006, 01:55 AM	#21
454_72_4X4 Registered User Join Date: Apr 2004 Location: N.E. MO Posts: 1,749	Re: What SBC cams are people running?? My Comp XE268 runs quiet but I run stock TRW lifters too. I've ran a couple Comp HE268 cams in a 328 and a 350. For a DD I like the HE cam better than the XE. __________________ 72 C20 4X4 454 4 speed 89 Trans Am (was) 305 TPI 700r4 93 C1500 2wd Extended cab 350 700r4 98 Sonoma (TPI outa the Trans Am) 03 Yamaha 660 Raptor 03/04 660 Raptor 07 700 Raptor 85 Honda Odyssey

12-08-2006, 08:34 PM	#22
CMars45000 Registered User Join Date: Jul 2006 Location: Pittsburgh, PA Posts: 204	Re: What SBC cams are people running?? XR286R not run yet but will be in the 327 __________________ Project Family Values Build Thread Vehicles/Projects: -1971 C10 SWB Fleetside! Gathering parts now, will begin frame-off resto soon... Pleasure in the job puts perfection in the work. -Aristotle



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12-08-2006, 08:48 PM	#23
piecesparts Parts and more parts Join Date: Nov 2003 Location: Lebo, Kansas (middle of nowhere Posts: 6,821	Re: What SBC cams are people running?? Running a Comp Cams Roller cam #XR264HR and Comp Magnum roller rockers in a 383 stroker, 9.5 to 1 ratio motor. The cam is set at 107 degrees. It is tied through a 2400 stall converter / 700R4 tranny to a 3.73 Posi, 12 bolt rear end. Ever since I installed the stall converter, the truck pulls hard from 2000 to 4500 and sounds good. The heads are not aluminum, but are cast Dart II Sportsmen, connected to a dual 2 1/2" exhaust system with long tube headers and flowmasters.

Register or Log In To remove these advertisements.