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Proform Extruded Aluminum Roller Rocker Arms

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Old 10-17-2008, 02:45 AM
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Car: 89 Firbird Formula WS6
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Axle/Gears: 3.45 Posi 9 bolt
Proform Extruded Aluminum Roller Rocker Arms

http://store.summitracing.com/partde...5&autoview=sku

Has anyone used these? If so what length pushrods did you use?
Old 10-17-2008, 04:06 PM
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Re: Proform Extruded Aluminum Roller Rocker Arms

Do yourself a favor and get a pushrod length checker. Just because someone else used a certain size with them and it worked doesn't mean it'll be the correct length for your application, there are too many variables that can cause you to need different lengths, besides for the price of a length checker it's worth the piece of mind knowing you have the proper length for your application.
Old 10-17-2008, 04:13 PM
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Re: Proform Extruded Aluminum Roller Rocker Arms

we used them on a friend's car but in the 1.5:1 ratio, they work really well, pretty good piece especially for the money. do you have an aftermarket cam in it already? what heads are you using?

edit: checking the length would be a good idea, also checking clearance on the head because the 1.6 rockers move the pushrod towards the stud. we used stock pushrods for what its worth
Old 10-17-2008, 04:45 PM
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Re: Proform Extruded Aluminum Roller Rocker Arms

i have them on my car and used stock pushrod length they are pretty nice for the money i have 1.5 on mine never had/heard of anything bad about them
Old 10-17-2008, 04:58 PM
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Re: Proform Extruded Aluminum Roller Rocker Arms

Originally Posted by brandoz28
do you have an aftermarket cam in it already? what heads are you using?

Right now the car is stock, just looking at my options. Im thinking about the summit vortechs cut down to 58cc and the edelbrock base for them. Haven't decided on the cam yet either. Then i get to learn how to burn my own proms lol. Wishing i could afford a vortech supercharger and 335 kit for it but thats not happening anytime soon lol
Originally Posted by 89RsPower!
Do yourself a favor and get a pushrod length checker. Just because someone else used a certain size with them and it worked doesn't mean it'll be the correct length for your application, there are too many variables that can cause you to need different lengths, besides for the price of a length checker it's worth the piece of mind knowing you have the proper length for your application.


But i will get the pushrod checker though

Last edited by Seanmay1; 10-17-2008 at 05:11 PM.
Old 10-17-2008, 06:10 PM
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Re: Proform Extruded Aluminum Roller Rocker Arms

Originally Posted by Seanmay1
Right now the car is stock, just looking at my options. Im thinking about the summit vortechs cut down to 58cc and the edelbrock base for them. Haven't decided on the cam yet either. Then i get to learn how to burn my own proms lol. Wishing i could afford a vortech supercharger and 335 kit for it but thats not happening anytime soon lol




But i will get the pushrod checker though
I'm sure you already know this, but since you mentioned a 335 kit I'm sure you know if you need to rebuild the lower end of a 305 and performance is your goal its always cheaper money to power wise to invest in a 350 block for $50 and rebuild that instead, throw a stroker kit in that and you have a lot more cubes than 335
Old 10-17-2008, 06:42 PM
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Re: Proform Extruded Aluminum Roller Rocker Arms

it doesn't need a rebuild i was just looking up things i would like to add to the 305 lol. But yea whenever its time for a new bottom end it will get as many cubes as i can get with the TPI, wonder how it would do with a 434 (i like stroker motors lol just cant ever afford them). But before all of that the trans, rear end, and suspension would have to be built to handle my abuse. I tend to put cars through hell on a regular basis

Last edited by Seanmay1; 10-17-2008 at 07:09 PM.
Old 10-17-2008, 07:41 PM
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Re: Proform Extruded Aluminum Roller Rocker Arms

Ive been using a set of 1.5's for years and no problems.
Old 10-17-2008, 07:45 PM
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Re: Proform Extruded Aluminum Roller Rocker Arms

Originally Posted by chevymec
Ive been using a set of 1.5's for years and no problems.
thats good to know, i wonder why they are so much cheaper than all the others. but i see no use to buy the high dollar ones if the cheaper ones work fine
Old 10-17-2008, 08:27 PM
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Re: Proform Extruded Aluminum Roller Rocker Arms

^ In most cases you are paying for a name.
Old 10-17-2008, 09:05 PM
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Re: Proform Extruded Aluminum Roller Rocker Arms

i asked the same questions a few years ago about pushrods, at the cost of what, 25$ for a length checker you need to go with what cam, heads, and rocker arms are go with noone is the same and only takes a little time to check this out.
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