cam for stock vortec heads - Chevelle Tech

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post #1 of 10 (permalink) Old Oct 27th, 07, 11:58 PM Thread Starter
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cam for stock vortec heads

I just bought a set of 062 vortec heads. These are new in box. I really dont want to start swapping stuff on it. perfer to use them as is,. So, whats a good cam choice? car is a 2nd gen camaro. 400 motor, stock dished pistons, gears are 308 now, I might move to a 3.31 later. tranny is a auto. Ive got a 2400 holeshot coverter I can put in. or go to a muncie M20. car is a weekend driver. Im not looking for the last horsepower. intake that came with it, is a crosswind, airgap manifold. 750 eddy carb. thanks jim
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post #2 of 10 (permalink) Old Oct 28th, 07, 12:07 AM
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Re: cam for stock vortec heads

If you are going with the stock heads, personally, I would not mess with trying to get as much lift as possible out of them. I have heard people say to stay under as little as .450 on lift with the heads stock. That being the case, you are left with some very mild cams. Your best bet may be to call comp or some other company and tell them what you are looking for as far as performance goes. They may be able to come up with something with ~.450 lift that will still retain some high end performance. Other people on the site will also have good recommendations.

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post #3 of 10 (permalink) Old Oct 28th, 07, 12:17 AM Thread Starter
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Re: cam for stock vortec heads

Im just trying to avoid "more's law". More cam=more springs=more money. More cam, might as well throw more piston=more $$$. The car runs great now, stock 400 out of a 74 caprice, but the seals or guides are going. It smokes everytime you start it up. I got a deal on the heads, intake, rockers, and gaskets. I figure I could just install them, but wouldnt mind a cam swap, but really dont want to start swapping springs, cutting down the guides, drilling out the pushrod holes, etc. Jim
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post #4 of 10 (permalink) Old Oct 28th, 07, 12:22 AM
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Re: cam for stock vortec heads

I use the XE-256 it clears everything but is awfully mild even in a 350. If you want much more cam you will need to modify the heads.
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post #5 of 10 (permalink) Old Oct 28th, 07, 12:33 AM Thread Starter
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Re: cam for stock vortec heads

I was over on the nastyz28 site. It looks like I can get a set of springs and retainers pretty reasonably. I may just go that route. Jim
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post #6 of 10 (permalink) Old Oct 28th, 07, 1:12 AM Thread Starter
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Re: cam for stock vortec heads

hows the crane blueprint 151 grind cam work? .447 lift. thanks. jim
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post #7 of 10 (permalink) Old Oct 28th, 07, 1:22 AM
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Re: cam for stock vortec heads

The best cam I have used with Vortecs for a weekend cruiser that makes great power is the Summit SUMK1105 dual pattern cam kit for a manual trans. The 062s have a better exhaust port flow than most other Chevy stock iron heads. Take advantage of this with a dual pattern cam to release all the expended gases on exhaust stroke. I used both 041s and Vortecs before. Both did good with SUMK1105 kits on +.030 400 sbc, flat top cast pistons, headers, 750cfm Holley vs and Performer RPM intake.

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post #8 of 10 (permalink) Old Oct 28th, 07, 10:28 AM
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Re: cam for stock vortec heads

Jim,
I've run the stock Vortec springs with cams up to .480 lift. The problem is not with the springs...these were originally used with a factory roller cam...it's the clearence between the bottom of the retainer and the top of the valve guide boss. Due to cast variences, not all Vortec heads have this much clearence. You will have to verify this.
Some guys will grind a little off the bottom of the retainer. I'm not a big fan of this. I'd hate to see the locks pull thru a retainer when a better solution (replacement springs) is available reasonably priced.
BTW, the GM 350 HO crate motors equipped with Vortecs run a .460" lift with stock springs.
I think the Voodoo 60101 would work perfect. I've used this cam before with Vortecs.
If you do decide to change springs...I've got a BN set of LT4 springs with retainers I'll send 'ya cheap.

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post #9 of 10 (permalink) Old Oct 28th, 07, 11:57 AM
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Re: cam for stock vortec heads

Here's a link to an earlier article about the vortec heads. Should help answer some of your questions.


Easy upgrade Vortec Head for more lift

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post #10 of 10 (permalink) Old Oct 28th, 07, 8:27 PM Thread Starter
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Re: cam for stock vortec heads

Wildbill. are those springs and retainers the ones I need to run a little bigger lift? the ones in all the threads? If so can you either email or PM me on a price. I know we're not suppose to be selling in the regular threads. so I figure a pm will work. Jim
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