which camshaft? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dinnut · 12-22-2003, 04:57 AM

sometime next year im going to put a new intake carb and cam on/in my engine. im wondering which cam people are using and liking.

im looking at either
A. edelbrock performer-plus camshaft 278 intake/288 exhaust duration

B. comp cams 270h camshaft
270H Magnum™ is a great cam for high performance driving in street machines. The 270H has a rough idle in small blocks and a noticeable idle in big blocks. This is the largest cam you can use with a stock torque converter. The 270H will not affect power accessories, but should be used with headers and a 4 BBL. carburetor. This is the perfect cam for cruising.
(fromthis page)

C. crane cams Energizer 272 H10
Good idle, daily usage, off road, highway towing, fuel efficiency plus performance, 2600-3000 cruise RPM, 8.75 to 10.0 compression ratio advised. (50 state legal, pre-computer, C.A.R.B. E.O. D-225-21) Basic RPM 2000-5000 (#3 from here )

which one? or should i use a different one? the engine has headers and hei and will have a edelbrock performer rpm and 600 cfm edelbrock when updated with this camshaft

Rooster's 67 · 12-22-2003, 05:07 AM

comp or the crane IMO.
I have run the comp 270 in a 355 SB with 441 heads 2.02/1.60 10:1 flats and a performer intake, TH350 with a saturday night special 4.1:1 gears all in a 64SWB Damn thing would nearly pull the left front up. (it was lowered 3/5)

bigjimzlll · 12-22-2003, 11:10 AM

stock converter? if so the crane...if you have a 2000-2500 stall then the 270H magnum

Tx Firefighter · 12-22-2003, 11:24 AM

My favorite cam in the world is Comp 270H.

I use them with stock converters and power brakes just fine.

My orange truck has a Goodwrench crate engine with Comp 270, Performer RPM intake, Hooker headers and Holley 600 vac sec carb. 3.73 gears and a 700R4. Runs killer. It should have more compression for that cam, but it runs great with the low compression. The deep gears compensate for any loss of low end torque.

dinnut · 12-22-2003, 09:58 PM

sounds like you are running what i am going to run tx firefighter except with a edelbrock... and my old engine instead of a crate. and maybe a th400 instead of a 700r4

DanoDMano · 12-22-2003, 09:59 PM

I installed an Edelbrock like you mentioned, and liked it. But when I replace it next time it will be with a Comp cam!! I have heard great things about them.

dinnut · 12-22-2003, 10:02 PM

hmm the comp is getting good reviews. thats the one i want actually because its the biggest for stock converter and slightly rough idle.

and wont affect power accesories...

GMC JUNKIE TOO · 12-22-2003, 11:04 PM

Comp cams are the best, Look at the xe lineup they use the latest technology I have an xe 274 and love it I had an edelbrock rpm until two lobes went flat.

WRMZ71 · 12-22-2003, 11:22 PM

Might want to look into the summit cams as well if you're on a tight budget. They have the matching spec's for the edelbrock performer rpm intake and cam combo in there camshafts. They also have the same thing as you're (biggest cam with stock converter cam) I've gone with 2 summit cams, (the two i've mentioned) I haven't had a problem with either. I just went to the bigger one cause i got the performer rpm intake and i wanted the matching camshaft

dinnut · 12-23-2003, 12:51 AM

Quote:

Originally posted by WRMZ71
Might want to look into the summit cams as well if you're on a tight budget. They have the matching spec's for the edelbrock performer rpm intake and cam combo in there camshafts. They also have the same thing as you're (biggest cam with stock converter cam) I've gone with 2 summit cams, (the two i've mentioned) I haven't had a problem with either. I just went to the bigger one cause i got the performer rpm intake and i wanted the matching camshaft

this is going to be my only car and my daily transportation for getting around in high school, im going to be putting a performer rpm -----will the bigger cam work with the stock converter and be fairly reliable. i will be running power brakes soon... will it be ok with that?

lukecp · 12-23-2003, 12:58 AM

I've also been wondering about an Crane 272 (or maybe the Powermax split-duration version). However i have 3.07 gears and drive my truck on the highway alot so i don't want to kill my bottom end, with my curise being around 2400-3000rpm, depending on speed.

I called Comp and they said an 270H would be ideal for my 9.7:1 compresson engine...seems pretty big to me though. I was thinking or more like an XE262.....maybe a SBC will take more cam than i think it will, lol.

But anythign has got to be better than the 204/214 .420/.443 cam i have now

dinnut · 12-23-2003, 01:20 AM

Quote:

Originally posted by yellow72custom
I've also been wondering about an Crane 272 (or maybe the Powermax split-duration version). However i have 3.07 gears and drive my truck on the highway alot so i don't want to kill my bottom end, with my curise being around 2400-3000rpm, depending on speed.

I called Comp and they said an 270H would be ideal for my 9.7:1 compresson engine...seems pretty big to me though. I was thinking or more like an XE262.....maybe a SBC will take more cam than i think it will, lol.

But anythign has got to be better than the 204/214 .420/.443 cam i have now

thats a pretty small cam you got in there ! i think im going to probably get a comp 270. it sounds like a pretty high performance cam. but streetable at the same time. ive decided against the edelbrock unit i think.

mikep684x4 · 12-23-2003, 01:50 AM

I ran a comp 280h .480 lift in 350 with 1.94 heads,headers,performer rpm,750 holley,summit $103 converter,and a turbo 400. Go 11 miles to the gallon and ran low 13's on pump gas,and drove it back and forth t work for three years till i sold it to my brother to put in his 57.He raced it for 2 more years before he tore it down. As for the Summit racing cams, They are good, they're made by Comp cams for Summit. So same great cam for a lower price.

fast14 · 12-24-2003, 02:45 AM

Are you guys running screw in studs with cams like the 270-h comp?? Or will I not have to worry about the studs going anywhere with this cam?? Oh yeah, i also plan on using either 1.5 or 1.6 roller rockers, I have a set of each. Thanks.

fast14 · 12-27-2003, 05:29 AM

Anybody have experience with this??

bigjimzlll · 12-27-2003, 02:58 PM

Its not so much the cam..as it is the spring pressure..anything over 120lbs on the seat should have screw in studs or a stud girdle the 270 magnum ,if I remember right, is 470 lift and 270 durration...It dosent have to use big springs..but if you have some stout springs ..then you need the screw in studs

12-22-2003, 04:57 AM	#1
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	which camshaft? sometime next year im going to put a new intake carb and cam on/in my engine. im wondering which cam people are using and liking. im looking at either A. edelbrock performer-plus camshaft 278 intake/288 exhaust duration B. comp cams 270h camshaft 270H Magnum™ is a great cam for high performance driving in street machines. The 270H has a rough idle in small blocks and a noticeable idle in big blocks. This is the largest cam you can use with a stock torque converter. The 270H will not affect power accessories, but should be used with headers and a 4 BBL. carburetor. This is the perfect cam for cruising. (fromthis page) C. crane cams Energizer 272 H10 Good idle, daily usage, off road, highway towing, fuel efficiency plus performance, 2600-3000 cruise RPM, 8.75 to 10.0 compression ratio advised. (50 state legal, pre-computer, C.A.R.B. E.O. D-225-21) Basic RPM 2000-5000 (#3 from here ) which one? or should i use a different one? the engine has headers and hei and will have a edelbrock performer rpm and 600 cfm edelbrock when updated with this camshaft __________________ 70 longbed 496/th400/Ford 9" Last edited by dinnut; 12-23-2003 at 12:57 AM.

12-22-2003, 05:07 AM	#2
Rooster's 67 Registered User Join Date: Sep 2003 Location: DFW Posts: 765	comp or the crane IMO. I have run the comp 270 in a 355 SB with 441 heads 2.02/1.60 10:1 flats and a performer intake, TH350 with a saturday night special 4.1:1 gears all in a 64SWB Damn thing would nearly pull the left front up. (it was lowered 3/5) __________________ The problem with America is stupidity. I'm not saying there should be a capital punishment for stupidity, but why don't we just take the safety labels off of everything and let the problem solve itself?

12-22-2003, 11:24 AM	#4
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	My favorite cam in the world is Comp 270H. I use them with stock converters and power brakes just fine. My orange truck has a Goodwrench crate engine with Comp 270, Performer RPM intake, Hooker headers and Holley 600 vac sec carb. 3.73 gears and a 700R4. Runs killer. It should have more compression for that cam, but it runs great with the low compression. The deep gears compensate for any loss of low end torque. __________________ I'm on the Instagram- @Gearhead_Kevin

12-22-2003, 09:58 PM	#5
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	sounds like you are running what i am going to run tx firefighter except with a edelbrock... and my old engine instead of a crate. and maybe a th400 instead of a 700r4 __________________ 70 longbed 496/th400/Ford 9"

12-22-2003, 09:59 PM	#6
DanoDMano Pronounced "Pew-al-up" Join Date: Oct 2002 Location: Puyallup, Washington Posts: 845	I installed an Edelbrock like you mentioned, and liked it. But when I replace it next time it will be with a Comp cam!! I have heard great things about them. __________________ Classic GM Trucks of Washington Club Member 1970 FS chevy,350/350, Edelbrock cam and intake. Holley 650 carb,HEI,AT,Tangier Orange, 18's, Power Locks, Truck Photos

12-22-2003, 11:10 AM	#3
bigjimzlll Senior Member Join Date: Dec 2001 Location: Redding,CA...USA Posts: 4,736	stock converter? if so the crane...if you have a 2000-2500 stall then the 270H magnum __________________ 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

12-22-2003, 10:02 PM	#7
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	hmm the comp is getting good reviews. thats the one i want actually because its the biggest for stock converter and slightly rough idle. and wont affect power accesories... __________________ 70 longbed 496/th400/Ford 9"

12-22-2003, 11:04 PM	#8
GMC JUNKIE TOO THE QUICKER FIXERUPER Join Date: Jul 2002 Location: Ok Posts: 615	Comp cams are the best, Look at the xe lineup they use the latest technology I have an xe 274 and love it I had an edelbrock rpm until two lobes went flat.

12-22-2003, 11:22 PM	#9
WRMZ71 Cause the Chicks DIG IT!! Join Date: Nov 2003 Location: Beaufort SC Posts: 509	Might want to look into the summit cams as well if you're on a tight budget. They have the matching spec's for the edelbrock performer rpm intake and cam combo in there camshafts. They also have the same thing as you're (biggest cam with stock converter cam) I've gone with 2 summit cams, (the two i've mentioned) I haven't had a problem with either. I just went to the bigger one cause i got the performer rpm intake and i wanted the matching camshaft

12-23-2003, 12:58 AM	#11
lukecp Formerly yellow72custom Join Date: May 2001 Location: Austin, TX Posts: 7,531	I've also been wondering about an Crane 272 (or maybe the Powermax split-duration version). However i have 3.07 gears and drive my truck on the highway alot so i don't want to kill my bottom end, with my curise being around 2400-3000rpm, depending on speed. I called Comp and they said an 270H would be ideal for my 9.7:1 compresson engine...seems pretty big to me though. I was thinking or more like an XE262.....maybe a SBC will take more cam than i think it will, lol. But anythign has got to be better than the 204/214 .420/.443 cam i have now __________________ '72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride. '70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck. '97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg

12-23-2003, 01:50 AM	#13
mikep684x4 Seeker of the big and bad Join Date: Nov 2000 Location: wheatland,Calif,yuba Posts: 105	I ran a comp 280h .480 lift in 350 with 1.94 heads,headers,performer rpm,750 holley,summit $103 converter,and a turbo 400. Go 11 miles to the gallon and ran low 13's on pump gas,and drove it back and forth t work for three years till i sold it to my brother to put in his 57.He raced it for 2 more years before he tore it down. As for the Summit racing cams, They are good, they're made by Comp cams for Summit. So same great cam for a lower price. __________________ 71 3/4 ton 4x4,665hp 454. 67 GMC 1 ton towtruck 68 chevy LB 4x4 64 chevy LB custom 57 Bel-air 2d station wagon

12-24-2003, 02:45 AM	#14
fast14 Registered User Join Date: Nov 2003 Posts: 117	Are you guys running screw in studs with cams like the 270-h comp?? Or will I not have to worry about the studs going anywhere with this cam?? Oh yeah, i also plan on using either 1.5 or 1.6 roller rockers, I have a set of each. Thanks. __________________ Just a little crazy 1970 chevy full size half ton, soon to be one ton running gear, 350 turbo, 205 case, 355c.i.

12-27-2003, 05:29 AM	#15
fast14 Registered User Join Date: Nov 2003 Posts: 117	Anybody have experience with this?? __________________ Just a little crazy 1970 chevy full size half ton, soon to be one ton running gear, 350 turbo, 205 case, 355c.i.

12-27-2003, 02:58 PM	#16
bigjimzlll Senior Member Join Date: Dec 2001 Location: Redding,CA...USA Posts: 4,736	Its not so much the cam..as it is the spring pressure..anything over 120lbs on the seat should have screw in studs or a stud girdle the 270 magnum ,if I remember right, is 470 lift and 270 durration...It dosent have to use big springs..but if you have some stout springs ..then you need the screw in studs __________________ 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



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