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Author Topic:   .450 lift camshaft for a Hobby Stock==Help!!!
Footlead
Dirt Roller

Total posts: 24
posted May 12, 2005 05:32 PM  
The bombers used to have to run a .400 lift 20 inches of vacuum camshaft,,,,,then just had to pull 15 inches of vacuum,,,,then had a vacuun rule or .450 lift max rule. Now we don't have bombers anymore,,,we have Hobby Stocks and a .450 lift rule any vacuum is ok. I need some help on picking a camshaft,,,,Somebody please list some good manufacturers and cam part numbers for a Small Block Chevy open chambered head <441> with headers. Any specs would be helpfull,,,duration @050,,,lobe center etc.etc.
Thanks


iowatoolman
Dirt Freak

Total posts: 369
posted May 12, 2005 06:58 PM  
try chet herbert cams in california

714-750-1211

Eljojo
Dirt Forum Champ
Total posts: 968
posted May 13, 2005 04:20 AM  
Comp 450 453 ground on 106
very popular and works great up to 6500

rollingviolation
Dirt Roller

Total posts: 18
posted May 13, 2005 08:57 AM  
I put the Isky Cam in my Camaro (Enduro) over the winter and if it ever stops raining, I'll be able to race this weekend and tell you how it runs...

My buddy put one from Comp in his Malibu over the winter...

Both 450 lift ovaltrack cams. http://www.iskycams.com/pdfcatalog/2004-05/page92.pdf

Although, my buddy has in his street car a cam with almost identical specs - it's a clone of an old GM "350HP" cam? - .447 lift.
(It's an Elgin or something he put in like 8 years ago... - I just think it might be cheaper than a race cam and it's virtually the same cam. I think it's the cam they base the .450 lift rule off of.)


97dirt
Dirt Forum Racer

Total posts: 94
posted May 13, 2005 05:33 PM  
Isky makes a good one,236 at 50,I've used before

I-B-RACIN
Dirt Maniac

Total posts: 132
posted May 14, 2005 01:28 PM  
if it is used in a heavy car( 3500 pounds ) i would suggest somthing like a 110 or 108 lobe center and like a 240 .50 duartion. I always had to have mine custom ground to get the one that I wanted.lunati makes a 450 lift bracket cam builds big torque I think thats like a 224 .05 duration and 114 lobe center..

El Santo
Dirt Full Roller

Total posts: 36
posted May 18, 2005 10:08 PM  
I really like the Isky cam myself. Part no. 201278, .450 lift, 278 duration, 234 @ .050, 106 lobe seperation. For the heavier cars I prefer this cam over the 201288 because it has more bottom end power on a 1/4 mile track. Now if you run on a big 3/8 or bigger track I would go with the 201288. It has more duration, 288 and 244 @ .050.

Footlead
Dirt Roller

Total posts: 24
posted May 24, 2005 07:37 PM  
Thanks for the advice and info.

nine finger
Dirt Forum Racer

Total posts: 76
posted May 27, 2005 10:01 PM  
450 is plenty of lift for a stocker. pay more attention to your valve job. maby a healthy back cut on the intake valve. unshrould the chamber on the intake side. solid cam with plenty of spring, no one ever realizes how important spring pressure is. comp cams are the best.

FOX
Dirt Full Roller

Total posts: 28
posted May 28, 2005 06:39 AM  
Is the Comp Cam Grind 450 453 lift a good cam for high banked 4/10 mile dirt track,an if so does it really pull up to 6500.

nine finger
Dirt Forum Racer

Total posts: 76
posted May 30, 2005 07:53 AM  
any cam will pull 6500,will your valve springs allow it to pull 6500. the day of running any cam on stock springs is over. pay for good springs and be done with it.

FOX
Dirt Full Roller

Total posts: 28
posted May 31, 2005 08:05 AM  
Is the isky 201288 cam a good all around cam for a 4/10 mile high banked dirt track,My only concern would be the power out of the corners.TY

racerman707
Dirt Freak

Total posts: 374
posted May 31, 2005 10:06 AM  
Try Larry Wallace at Holman-Moody. He's the man as far as I'm concerned!

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