Rocker arms - Pontiac GTO Forum
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post #1 of 22 (permalink) Old 02-02-2006, 07:36 AM Thread Starter
 
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Rocker arms

I have been looking into getting aftermarket rocker arm. Does anyone know what the stock rocker arm (ratio?) is? I assume they are 1.5. I've read that if you put 1.6 it's good for 10 hp. To me that's a pretty cheap mod with a preety good gain. Let me know what you guy's think.
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post #2 of 22 (permalink) Old 02-02-2006, 10:26 AM
 
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Go 1.8's, SLP sells them and they are very nice pieces... I'm starring at them right now! (for another customer)
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post #3 of 22 (permalink) Old 02-02-2006, 10:27 AM Thread Starter
 
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Sounds good. One question; will I have to replace my push rods or lifters? Thanks for your help
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post #4 of 22 (permalink) Old 02-02-2006, 11:04 AM
 
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If you do the rockers, no, the only thing I would recommend is replacing the valve springs to something that can take the added stress, problem is, once you do both you can buy a cam cheaper.
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post #5 of 22 (permalink) Old 02-02-2006, 12:57 PM Thread Starter
 
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Thanks, what type of springs would work best?
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post #6 of 22 (permalink) Old 02-02-2006, 02:23 PM
 
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SLP sells a kit, you can check it out on www.slponline.com
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post #7 of 22 (permalink) Old 02-02-2006, 02:32 PM Thread Starter
 
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Hey thank's for your help Dealer
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post #8 of 22 (permalink) Old 02-02-2006, 06:18 PM
 
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Stock is 1.7 ratio, according to SLP's web site
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post #9 of 22 (permalink) Old 02-02-2006, 07:12 PM
 
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1.8 rockers

All lot less money would be to use the LS7 1.8 ratio exhaust rocker. Something like $144.XX + Tax + Shipping for a set of sixteen. p/n 12579617

And LS2 GTOs have LS6 type springs. Good for the additonal lift the 1.8s would supply.

All you need are the rocker arms.

Last edited by Felix C.; 02-02-2006 at 07:19 PM.
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post #10 of 22 (permalink) Old 02-02-2006, 08:48 PM Thread Starter
 
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Quote:
Stock is 1.7 ratio, according to SLP's web site
Thanks Nick! Yeah I just read that too...I dont know what I was thinking

Quote:
All lot less money would be to use the LS7 1.8 ratio exhaust rocker. Something like $144.XX + Tax + Shipping for a set of sixteen. p/n 12579617

And LS2 GTOs have LS6 type springs. Good for the additonal lift the 1.8s would supply.

All you need are the rocker arms.
With that part number I assume they are GM parts? Thanks for the info, I will look into them.
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