Cam Choice

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Old Feb 13, 2014 | 04:49 PM
  #1  
Schne442's Avatar
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From: NE, Illinois
Cam Choice

I am converting my stock 72 350 2bbl with 7a heads to a 4bbl oem intake and Rochester carb. While taking the old intake manifold and carb off I also removed the water pump and timing cover.
I bought a new Cloyes 9-1113 timing set. I thought that while I have it all apart I would replace the old cam with a new one to add a little more low end torque. I am looking at a LUNATI 256/262 .485"/.499" VOODOO HYDRAULIC FLAT TAPPET CAMSHAFT FOR OLDSMOBILE ALL V8 LUNATI PART #10420701 or a COMP CAMS 252 HIGH ENERGY HYDRAULIC FLAT TAPPET CAMSHAFT FOR OLDSMOBILE 260-455 ENGINES. NUMBER #42-227-4. I want to keep it near stock. I will at some point change the stock rear to a 3.08 and limited slip. and change to a stock duel exhaust. just wanted to get some opinions from you guys with all the experience. Thanks Gary
Old Feb 13, 2014 | 06:12 PM
  #2  
captjim's Avatar
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The problem with the 72 350 is the compression ratio, it is around 8 to 1, maybe a tad more with OE gaskets. That severely limits cam choice, that one you are looking at is probably a bit much, IMO. Something in the 205/.450 range would be better.
Old Feb 14, 2014 | 12:51 AM
  #3  
DoubleV's Avatar
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The Voodoo cam one size smaller ( 207/213 duration ) works well in my 8 to 1 CR 350 Olds. With headers, true duals, RPM intake, Qjet, and stock 85 442 drivetrain, I ran a best 13.83 with it. It will launch pretty good with drag radials, but it doesn't MPH worth a darn ( a hair under 97 mph ). It idles nice and generally behaves as it were stock. I think the next step up which you are considering would probably work OK because they do appear to be designed to make good cylinder pressure, but I think the smaller one would work better for you.
Old Feb 14, 2014 | 01:03 AM
  #4  
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I'd go with compcams high energy 260 better than 252.and near stock if thats what you're looking for.
Old Feb 14, 2014 | 04:26 AM
  #5  
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I know guys have used them but I'm just not a fan of the VooDoo or Xtreme Energy stuff with stock rockers.

I'd do something in s single pattern, that would give you more low end torque.
Old Feb 14, 2014 | 05:24 AM
  #6  
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Imo that's too much camshaft. I did a similar 350 build 20+ years ago for my son's car. I used the comps cam 262h, .456/.456 . With headers, really woke up the 350. You always want to be "under" cammed/carb than over. Ken
Old Feb 14, 2014 | 09:27 AM
  #7  
Schne442's Avatar
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No it's not a parts car!!
 
Joined: Nov 2010
Posts: 438
From: NE, Illinois
Originally Posted by cutlassefi
I know guys have used them but I'm just not a fan of the VooDoo or Xtreme Energy stuff with stock rockers.

I'd do something in s single pattern, that would give you more low end torque.
What is this single pattern you speak of and who sells one.
is there some other simple upgrades I could make (new rockers, Springs)to have one of the Cams I mentioned be more compatable?
I just figured that while I have it all apart I Might As Well upgrade the cam to somthing with a little more power and sound so my W29 is more of a W29.2
Thanks Guys
Old Feb 14, 2014 | 09:36 AM
  #8  
70cutty's Avatar
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From: Daly City, California
Why don't you just ask Mark (cutlassefi) to grind you a cam that's best for your application. I got a Lunati custom grind from him for my SBO and I couldn't be happier with it.
Old Feb 14, 2014 | 10:08 AM
  #9  
Schne442's Avatar
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No it's not a parts car!!
 
Joined: Nov 2010
Posts: 438
From: NE, Illinois
Originally Posted by 70cutty
Why don't you just ask Mark (cutlassefi) to grind you a cam that's best for your application. I got a Lunati custom grind from him for my SBO and I couldn't be happier with it.
Well I figured someone would suggest that, So just sent him a PM
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