LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Proform 1.6 rockers

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Old Jan 25, 2005 | 12:20 PM
  #1  
southern78's Avatar
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Proform 1.6 rockers

Any experience with the proform 1.6 ratio rockers? Jegs has them in a set for 189.99. Just curious before I buy is quality is good. Its pretty much a stock setup just wanting to add a little.

Thanks.

Any spring sugguestion with these rockers would be nice.
Old Jan 25, 2005 | 01:37 PM
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Re: Proform 1.6 rockers

I have had mine for a couple years now, no major issues. One recomendation would be to install new studs. The factory studs are a little short and you won't have a whole lot of thread engagement with the poly lock.

some decent stock replacement springs should suffice.
Old Jan 25, 2005 | 01:56 PM
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Re: Proform 1.6 rockers

So some new stronger springs besides stock replacement ones are not needed? What aftermarket studs would you suggest?
Old Jan 25, 2005 | 05:07 PM
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SVT Killer LV's Avatar
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Re: Proform 1.6 rockers

You money is better spend on anothe brand. They are junk. If you are on a budget get some used Comps or some new Scorpions...
Old Jan 25, 2005 | 06:51 PM
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Re: Proform 1.6 rockers

Aren't LT4 springs cheap and a bit of an upgrade from the f-body stockers, seems too me that would be better than just new stock ones.
On the rockers I have 42K on a set of 1.5 ProForms(I am willing to be the rollers are the same in differnt bodies to make the ratio change) the last 28K of which with an upgraded cam and appropriate springs, Nice and quiet yet even been told my car sounds stock(cam is mild a ZZ3 cam) so they are not noisey or anything.
Old Jan 25, 2005 | 07:24 PM
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Re: Proform 1.6 rockers

I would like the LT4 rockers but they r pricey and nice too imagine. So Dwayne your saying the proforms aren't good quality?

Last edited by southern78; Jan 25, 2005 at 08:02 PM.
Old Jan 25, 2005 | 08:20 PM
  #7  
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Re: Proform 1.6 rockers

No, I am saying they have served me well sofar and I am happy. I know guys that have had the GMPP rockers die in 20K with stiffer springs and no OD so on the highway they were really spinning the motor a lot the revs and springs just took their toll.
I know everyone drools over the GMPP/Crane/LT4(all similar not exactly the same), but really if money is no object I would say the steel Comp ProMagnums, steel for strength and rigidity, they act lighter than aluminum because it takes less steel for the same strength, and I believe they are rebuildable too if they should ever begin to wear. If you get them from somewhere like Combination Motorsports they are I believe less $$$ than the Crane/GMPP/LT4 rockers too so money wise they are not even that bad.
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