327 rockers - Team Camaro Tech
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post #1 of 10 (permalink) Old Jan 13th, 20, 08:16 AM Thread Starter
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danny
 
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327 rockers

When I’m replacing the rockers is there anything I need to be carefully about when choosing replacements?
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post #2 of 10 (permalink) Old Jan 13th, 20, 08:34 AM Thread Starter
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danny
 
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Does anyone suggest a “brand” And/or “ratio” to go with ?
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post #3 of 10 (permalink) Old Jan 13th, 20, 10:00 AM
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Re: 327 rockers

I went with Harland Sharp 1.5 full roller rockers. It depends on what youíre trying to get out of the engine. Stamped steel, stock type, obviously work, but if youíve beefed up the engine, you may want something stouter. IMO you canít go wrong with a roller tip or full roller rocker arm. Unless youíre wanting to keep it stock, Iíd recommend an upgrade to a roller tip or full roller.

You will need ones that self align unless you are running guide plates, which you are likely not. I think Comp Cams makes a nice 1.52:1 roller tip that is a good upgrade.

Last edited by ChrisG; Jan 13th, 20 at 10:18 AM.
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post #4 of 10 (permalink) Old Jan 13th, 20, 12:11 PM
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Re: 327 rockers

Quote:
Originally Posted by ChrisG View Post
I went with Harland Sharp 1.5 full roller rockers. It depends on what youíre trying to get out of the engine. Stamped steel, stock type, obviously work, but if youíve beefed up the engine, you may want something stouter. IMO you canít go wrong with a roller tip or full roller rocker arm. Unless youíre wanting to keep it stock, Iíd recommend an upgrade to a roller tip or full roller.

You will need ones that self align unless you are running guide plates, which you are likely not. I think Comp Cams makes a nice 1.52:1 roller tip that is a good upgrade.

Very good advise.


If you're stock, keep the 1.5:1 stamped steel rockers. Nothing wrong with them.



If you have adjustable guide plates and want to step up in performance, the Comp Cam 1601 Pro Magnums are very nice and extremely durable.
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post #5 of 10 (permalink) Old Jan 13th, 20, 12:11 PM
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Ron
 
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Re: 327 rockers

Depends:

Rebuild with GM parts or specifications (even HP parts) and used primarily as a cruiser with occasional racing application, the long slot stamped steel rockers (1.5 std) will serve you well for over 100K miles. Even the 302 and high HP 350s used these rockers.

Rebuild with aftermarket high lift cams, stronger springs, etc. setup primarily for racing applications: rockers, pushrods, guides, girdles, etc. as recommended by the cam manufacturer. But then again, why not go with aluminum heads?

I ran some aluminum roller rockers on a 302 and still had valve train problems, I am not a big fan of super duper aftermarket parts for a cruiser.

Ron
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post #6 of 10 (permalink) Old Jan 13th, 20, 12:15 PM Thread Starter
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danny
 
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The motor is all stock and I just want to upgrade them.
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post #7 of 10 (permalink) Old Jan 13th, 20, 06:34 PM
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Re: 327 rockers

If you do go with rollers and guide plates you will need hardened pushrods and you should go with screw in studs as yours may be pressed in. If you go that far aluminum heads are not all that expensive.

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post #8 of 10 (permalink) Old Jan 13th, 20, 07:57 PM
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Re: 327 rockers

the studs can be pinned
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post #9 of 10 (permalink) Old Jan 13th, 20, 08:01 PM
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Re: 327 rockers

I like the Harland Sharps or Roller Tipped Stamped.

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post #10 of 10 (permalink) Old Jan 13th, 20, 08:08 PM
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Re: 327 rockers

Quote:
Originally Posted by camarolover#1 View Post
When Iím replacing the rockers is there anything I need to be carefully about when choosing replacements?
Quote:
Originally Posted by camarolover#1 View Post
The motor is all stock and I just want to upgrade them.
If this is a fresh stock build than new stock stamped 1:5 will be fine and trouble free for at least 100k mi.

Upgrade....then a stamped 1:5 with a roller tip SA

If it was a head & cam build than a full roller RR 1:6 (Comp Pro Mag) NSA using guide plates & hardened PR
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