Need Help Deciding On A Cam - The 1947 - Present Chevrolet & GMC Truck Message Board Network

HotRod929 · 04-11-2003, 12:38 PM

Ok I have narowed my cam search down to 3 cams. Right now my engine is pritty much stock so I know these arnt the best cams for that but what I wanted was something that would give me a little bit now but also give me a lot of room to grow when I get new heads and whatnot. So with that in mind give me your Sugestions and comments as far as advantages of one over the other. Here they are:

Comp Cams High Energy 268H
Comp Cams Magnum 270H
Comp Cams Xtreme Energy 268H

Thanks guys,

HotRod

Old Chevy · 04-11-2003, 01:13 PM

I have the Magnum 270, I like it, but I am told by people who I trust on this board that the extreme 268 is a better cam.
With a stock torque converter, the low end grunt was very weak, so I have a 2500 stall unit.

HotRod929 · 04-11-2003, 01:22 PM

Old Chevy - How did that cam sound at idle? Over all though were you happy with the cam minus the low end grunt with the stock stall? Did you make up for the loss in low end grunt further down the track so to speak? Thanks

HotRod

Mike C · 04-11-2003, 03:25 PM

Personally, I would run a Crane Energize. The 272 is a nice cam, but wihout all of the other stuff, (intake, carb, exhaust, heads) it's probably too big. All of the Comps you picked are just too big for a mostly stock motor. The Energizer 266 is the best choice if you don't get caught up in the "mine is bigger, or at least as big, as yours" syndrome.

The Energizer cam AND lifters are less $ than just the Comp cam. Leaves you room for a top notch roller timing chain and dinner. The 266 pulls from 1000-4500 rpm, where you need it most of the time. It is the perfect cam for trucks with granny gear 4 speeds as it matches the torque curve to the gear spread quite well. It is compareable to the Comp 260 High Energy cam.

Personally, I think the ramp speed is too high for the XE series Comp cams and 100k mile durability will be non-existent. I have put that kind of mileage on 3 different Energizer cams.

HotRod929 · 04-11-2003, 07:09 PM

Mike C - I agree with what you are saying that they are almost to big for a plane stocker however when the cam goes in the intake will also change to a Performer RPM. I want something that will work good for now until i get new heads. Just want something to build from. Thanks for the input though. Much apreciated.

HotRod

Low69CST · 04-11-2003, 09:03 PM

I have an Xtreme 282, i'm very pleased with the way it sounds, very strong sounding motor.

bigjimzlll · 04-12-2003, 12:03 AM

I have used the 268H and the 270h magnum in a simular combo as yours..the 268H hi energy..worked very well...the 270 needs a stall converter of 2200-2500 to work very well..bigger would of been better..the 268H( I had a 2000 stall) was great...pulled hard too 5300rpm

Stroker · 04-12-2003, 12:27 AM

The Comp Cams High Energy 268H would be the best of the three you listed with a stock converter and compression ratio. Another cam I'll throw in the mix is the Comp Xtreme Energy 262 I haven't used it myself but I've heard a lot of good things about it from others with 350 combos like yours. Good Luck...Stroker

04-11-2003, 12:38 PM	#1
HotRod929 Registered User Join Date: Mar 2002 Location: Bondurant, IA but in Worcester, MA for school Posts: 767	Need Help Deciding On A Cam Ok I have narowed my cam search down to 3 cams. Right now my engine is pritty much stock so I know these arnt the best cams for that but what I wanted was something that would give me a little bit now but also give me a lot of room to grow when I get new heads and whatnot. So with that in mind give me your Sugestions and comments as far as advantages of one over the other. Here they are: Comp Cams High Energy 268H Comp Cams Magnum 270H Comp Cams Xtreme Energy 268H Thanks guys, HotRod __________________ 1970 Chevy C-20 350 V-8 Turbo 350 w/ shift kit Dana 60 w/ 4.10 gears AND Powr-Loc POSI New Additions: Summit Headers 135amp alternator Proform HEI Edelbrock 1406 600cfm carb Sunpro Tach Powr-Loc POSI Edelbrock Performer RPM Intake MSD 6A Ignition Box AIM: HotRod929 Visit My Site: http://1970chevy.netfirms.com/

04-11-2003, 01:13 PM	#2
Old Chevy Registered User Join Date: Jan 2000 Location: Tulsa, Oklahoma Posts: 498	I have the Magnum 270, I like it, but I am told by people who I trust on this board that the extreme 268 is a better cam. With a stock torque converter, the low end grunt was very weak, so I have a 2500 stall unit. __________________ Broken Arrow, OK. 1977 Corvette, ZZ4 Crate, new interior, new suspension, new driveline, you get the picture, (new project / daily driver)

04-11-2003, 01:22 PM	#3
HotRod929 Registered User Join Date: Mar 2002 Location: Bondurant, IA but in Worcester, MA for school Posts: 767	Old Chevy - How did that cam sound at idle? Over all though were you happy with the cam minus the low end grunt with the stock stall? Did you make up for the loss in low end grunt further down the track so to speak? Thanks HotRod __________________ 1970 Chevy C-20 350 V-8 Turbo 350 w/ shift kit Dana 60 w/ 4.10 gears AND Powr-Loc POSI New Additions: Summit Headers 135amp alternator Proform HEI Edelbrock 1406 600cfm carb Sunpro Tach Powr-Loc POSI Edelbrock Performer RPM Intake MSD 6A Ignition Box AIM: HotRod929 Visit My Site: http://1970chevy.netfirms.com/

04-11-2003, 03:25 PM	#4
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,739	Personally, I would run a Crane Energize. The 272 is a nice cam, but wihout all of the other stuff, (intake, carb, exhaust, heads) it's probably too big. All of the Comps you picked are just too big for a mostly stock motor. The Energizer 266 is the best choice if you don't get caught up in the "mine is bigger, or at least as big, as yours" syndrome. The Energizer cam AND lifters are less $ than just the Comp cam. Leaves you room for a top notch roller timing chain and dinner. The 266 pulls from 1000-4500 rpm, where you need it most of the time. It is the perfect cam for trucks with granny gear 4 speeds as it matches the torque curve to the gear spread quite well. It is compareable to the Comp 260 High Energy cam. Personally, I think the ramp speed is too high for the XE series Comp cams and 100k mile durability will be non-existent. I have put that kind of mileage on 3 different Energizer cams. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

04-11-2003, 07:09 PM	#5
HotRod929 Registered User Join Date: Mar 2002 Location: Bondurant, IA but in Worcester, MA for school Posts: 767	Mike C - I agree with what you are saying that they are almost to big for a plane stocker however when the cam goes in the intake will also change to a Performer RPM. I want something that will work good for now until i get new heads. Just want something to build from. Thanks for the input though. Much apreciated. HotRod __________________ 1970 Chevy C-20 350 V-8 Turbo 350 w/ shift kit Dana 60 w/ 4.10 gears AND Powr-Loc POSI New Additions: Summit Headers 135amp alternator Proform HEI Edelbrock 1406 600cfm carb Sunpro Tach Powr-Loc POSI Edelbrock Performer RPM Intake MSD 6A Ignition Box AIM: HotRod929 Visit My Site: http://1970chevy.netfirms.com/

04-11-2003, 09:03 PM	#6
Low69CST Registered User Join Date: May 2000 Location: Frankfort, Kentucky, USA Posts: 2,163	I have an Xtreme 282, i'm very pleased with the way it sounds, very strong sounding motor. __________________ '69 CST Short fleetside Lowered, 400 small block, 700R4, 4 wheel disc brakes, front sway bar & rear camaro sway bar (in progress) '87 V10 4x4 Short Fleetside Quad Suspension and Dual Tanks

04-12-2003, 12:03 AM	#7
bigjimzlll Senior Member Join Date: Dec 2001 Location: Redding,CA...USA Posts: 4,736	I have used the 268H and the 270h magnum in a simular combo as yours..the 268H hi energy..worked very well...the 270 needs a stall converter of 2200-2500 to work very well..bigger would of been better..the 268H( I had a 2000 stall) was great...pulled hard too 5300rpm __________________ It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA

04-12-2003, 12:27 AM	#8
Stroker Registered User Join Date: Mar 2001 Location: Moore, Ok Posts: 1,149	The Comp Cams High Energy 268H would be the best of the three you listed with a stock converter and compression ratio. Another cam I'll throw in the mix is the Comp Xtreme Energy 262 I haven't used it myself but I've heard a lot of good things about it from others with 350 combos like yours. Good Luck...Stroker __________________ 72 SWB parts and pieces Oklahoma



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