Question About Rocker Arms?
07-20-2008, 06:00 PM
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Car: '89 IROC-Z
Engine: LSx
Transmission: T-56
Axle/Gears: 3.42
Question About Rocker Arms?
Ok so I have most of the parts list set for the 2.8 build, but I have a question about these rocker arms, http://store.summitracing.com/partde...1&autoview=sku there is a 1:6 ratio and a 1:52 ratio, what is the difference, which do I need?
07-20-2008, 06:31 PM
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Car: 89 V6 Camaro
Engine: 2.8
Transmission: 700R4
Axle/Gears: 3.42 open diff
Re: Question About Rocker Arms?
1.6 rockers will give you more lift in the valves. The stock ratio is 1.5 so the 1.52s reall won't give you much. Get the 1.6s.
07-20-2008, 06:51 PM
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Car: '89 IROC-Z
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Axle/Gears: 3.42
Re: Question About Rocker Arms?
Thanks for the input, will keep updating about my build.
07-21-2008, 07:33 PM
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Re: Question About Rocker Arms?
Do the edlebrocks or the other brand(im caught a blank) clear?
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07-23-2008, 10:08 AM
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Car: '89 IROC-Z
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Re: Question About Rocker Arms?
Ok, I will pick myself up a set of fiero covers then, thanks for all the input.
08-08-2008, 04:39 PM
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Re: Question About Rocker Arms?
hey im doing that in about 5 days haha when they come in haha. so was it worth it putting roller rockers and he pushrods in the 2.8 camaro? o and the valve covers work with the 1.6's fine i have heard. so you shouldnt have to worry about that. just check to make sure haha
Last edited by RyanKeepsitReal; 08-08-2008 at 04:49 PM. Reason: forgot some more input
08-08-2008, 04:52 PM
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Re: Question About Rocker Arms?
o and if you use comp cams magnum rocker arms with a 1.6 ratio it should have enough clearance. there pretty cheap to. runs you about 170 after shipping and also you get the roller rockers, and he pushrods so not to bad
08-08-2008, 05:04 PM
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Car: 89 V6 Camaro
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Axle/Gears: 3.42 open diff
Re: Question About Rocker Arms?
I'm running the 1.6 roller tip rockers right now. They don't hit the valve covers and I used the same pushrods that were in the car stock.
08-10-2008, 03:02 AM
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Car: 88 T firebird
Engine: 2.8
Transmission: t5
Re: Question About Rocker Arms?
i believe its a minor clearence issue and can be dealt with - ive seen - by cutting a bit of mdf ? or the like to use as a rocker cover spacer or maybe try to cork gaskets each side ??????
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