Roller rockers in a 318? - JeepForum.com
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Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > Roller rockers in a 318?

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Unread 11-20-2003, 02:56 PM   #1
JumpinJack
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Join Date: Nov 2003
Posts: 2
Roller rockers in a 318?

Have any of you put roller rockers in the 318?

Just wondering what kind of benifits I'd gain.

Thanks,


jack

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Unread 11-20-2003, 04:39 PM   #2
iroc22
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Join Date: Jun 2002
Posts: 286
You will gain a maybe 3-5hp in swapping all 16 rocker arms to roller rockers keeping the same ratio. I haven't even seen any rockers for the magnum pedestal stud mounted arms cylinder heads. Where have you seen the roller rock arms?
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Unread 11-20-2003, 04:47 PM   #3
JumpinJack
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Quote:
Originally Posted by iroc22
You will gain a maybe 3-5hp in swapping all 16 rocker arms to roller rockers keeping the same ratio. I haven't even seen any rockers for the magnum pedestal stud mounted arms cylinder heads. Where have you seen the roller rock arms?
I saw them on ebay, crane make a set as well, but you have to change everything from the lifters up including the valve covers.

My valve covers are starting to leak and since I was going to remove them to get the gasket changed, I was thinking about putting some 1.6 rollers in. If it was worth it....
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Unread 11-21-2003, 12:28 AM   #4
iroc22
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If you're swapping in the 1.6's then you should see a bigger increase than just 3-5hp, maybe in the neighbourhood of 15hp. It's all guesses unless you dyno it.
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