Camshaft Choice - Team Camaro Tech
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post #1 of 16 (permalink) Old Jun 7th, 14, 10:14 PM Thread Starter
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Robert
 
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Camshaft Choice

Which camshaft would you select to upgrade a stock 327-210 that has 186 heads 2.02/1.60 valves with Z/28 manifold. Car is street driven only. Thanks.

ISKY CAMS 264-MEGA HYDRAULIC #CL201264
Advertised Duration IN/EX: 264/264
Duration @.050 IN/EX: 214/214
Gross Valve Lift IN/EX: .450"/.450"
Lobe Sep Angle / Intake Ctr Line: 108
Valve Lash IN/EX: Hyd/Hyd
RPM Range: 2000-5800

Bracket Master II Lunati #10120416LK
Advertised Duration IN/EX: 265/265
Duration @.050 IN/EX: 216/216
Gross Valve Lift IN/EX: .458"/.458"
Lobe Sep Angle / Intake Ctr Line: 110/106
Valve Lash IN/EX: Hyd/Hyd
RPM Range: 1000-5000

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post #2 of 16 (permalink) Old Jun 7th, 14, 11:42 PM
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Re: Camshaft Choice

Went through this with my 327. Having tried a couple cams my advice would be to run them both through a dynamic and static compression calculator and read this: http://members.uia.net/pkelley2/DynamicCR.html

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post #3 of 16 (permalink) Old Jun 8th, 14, 04:48 AM
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Re: Camshaft Choice

I'd go for the Lunati camshaft.
It can still use the stock springs, might change over to Z/28 springs though, 125-135 lb seat pressure.

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post #4 of 16 (permalink) Old Jun 8th, 14, 07:36 AM
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Re: Camshaft Choice

Lunati

Mark 70 Z28 M22 3.73 Z21 Z87 - Lunati 20120121 Roller Cam

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post #5 of 16 (permalink) Old Jun 8th, 14, 08:51 AM Thread Starter
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Re: Camshaft Choice

Thanks Larry, Everette and Mark. I will go with the Lunati Camshaft as suggested. Larry reading about DCR is a little too technical for an old guy like me with no mechanical background. Thanks again everyone. Great site!

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post #6 of 16 (permalink) Old Jun 8th, 14, 02:46 PM
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Re: Camshaft Choice

Need more info before anybody could make a worthwhile recommendation:

What tranny?
What rear gears?
What's your CR?
Any vacuum requirements?
What exhaust system?
Goals for your car?
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post #7 of 16 (permalink) Old Jun 8th, 14, 03:14 PM
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Re: Camshaft Choice

Good low end torque and HP. Works well
with stock stall converter. Good idle.
http://www.lunatipower.com/PDF/Lunati-Catalog.pdf

Mark 70 Z28 M22 3.73 Z21 Z87 - Lunati 20120121 Roller Cam

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post #8 of 16 (permalink) Old Jun 8th, 14, 07:11 PM
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Re: Camshaft Choice

Im using Comp Cams XS274 solid in my 327.

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post #9 of 16 (permalink) Old Jun 9th, 14, 02:42 PM
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Re: Camshaft Choice

OEM heads need duration split.

Chris

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post #10 of 16 (permalink) Old Jun 9th, 14, 07:23 PM
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Re: Camshaft Choice

You only live once ! Go roller :

217/225 @ .050"

http://www.summitracing.com/parts/hr...make/chevrolet

Good idle, street performance, strong lower to midrange. Stock converter OK.

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post #11 of 16 (permalink) Old Jun 9th, 14, 09:22 PM
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Re: Camshaft Choice

If your going hydraulic, I like the GM 350/350. I used that cam in a .030 over 327 with #041 1.94-1.50 heads, blackjack headers and an early GM aluminum intake...I think it was either a 65 or 66 intake I bought off a corvette guy back when I first started messing with engines in the early 70's, added a 650 dbl pumper to top it off. Engine ran real good with 3.55's. Of course there are much better cams out there now but you can't beat old school GM stuff if your engine is relatively untouched.

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post #12 of 16 (permalink) Old Jun 9th, 14, 09:41 PM
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Re: Camshaft Choice

I like the Isky if you have a manual tranny

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post #13 of 16 (permalink) Old Jun 9th, 14, 10:06 PM
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Re: Camshaft Choice

I agree with Gary... if you have an automatic tranny. Hard to beat the L46 camshaft.

If you have a stick, use an LT-1 camshaft. Available from Rock Auto made by Fed Mogul.

With either of those you can use the stock springs (won't tear up the cam as easy) and still rev to 6800 if you want to.

Hate to start the old "zinc in modern oil" debate again, but if you are going flat tappet, either hyd or solid, then use Mobil Delvac (available at Wally World) or if you must use a synthetic, use half a bottle of GM's EOS with each oil change. Good insurance against wiping a lobe.

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post #14 of 16 (permalink) Old Jun 9th, 14, 10:09 PM Thread Starter
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Re: Camshaft Choice

Quote:
Originally Posted by Straight-line-69 View Post
Need more info before anybody could make a worthwhile recommendation:

What tranny? 350 TCI
What rear gears? 12 bolt with 3.73:1
What's your CR? 9.5
Any vacuum requirements? Power Disc Brake all 4 wheels
What exhaust system? Magnaflow 2.5
Goals for your car?
Street driven only
Distributor MSD 8360

I believe the Lunati is a good cam as suggested.

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post #15 of 16 (permalink) Old Jun 14th, 14, 07:19 PM Thread Starter
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Re: Camshaft Choice

Quote:
Originally Posted by cstraub View Post
OEM heads need duration split.
I contacted Lunati and the guy there said, "The cam I would run is part number 10120701. This cam is 213/219 at .050, 454/.468 on the lift, and it is cut on a 112 LSA with a 108 intake
centerline." I guess your suggestion was on the money.

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