LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Roller Rockers?

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Old 06-26-2011, 09:21 PM
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I have the SA ultra pro mag 1.6 rockers I still haven't installed them but they seem very well made and have a life time warranty I plan on putting these with the LT4 springs I have..My car is stock and should be ok with that set up..Keep hearing people saying not to use LT4 springs and I keep asking why?? Shon Herron used LT4 springs and comp 1.6 rocker to accomplish the LT1 bolt on record..Yes he used LT4 springs...
http://www.herronperformance.com/html/shop_car.html
Old 06-27-2011, 03:59 AM
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Originally Posted by IronOutlaw
Theres a sponsor on another site about to piece us together some GOOD roller rocker kits with the backset rockers. Im really wanting to go with them this fall. From what I understand a good set of 1.8 or 1.9 rockers should match the hotcam kit in performance while keeping a stock idle and not having the pain of a cam install.

Now this would be cool if it actually sees the light of day.
Old 06-27-2011, 06:37 AM
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I run the Pro Mag with a PAC 1218 spring
Old 06-28-2011, 01:02 AM
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too bad pro mags can't be bought anymore.. Someone correct me if i'm wrong. I believe the only option now is ultra pro mags.
Old 06-28-2011, 01:10 AM
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Originally Posted by food nd cars
too bad pro mags can't be bought anymore.. Someone correct me if i'm wrong. I believe the only option now is ultra pro mags.
Which are much better
Old 06-28-2011, 02:34 PM
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So is there anything special needed to run 1.7s? with they clear center bolt valve covers?
Old 06-28-2011, 02:51 PM
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Also will it need retuned? Bryan Herter Dyno tuned it but my buddy was saying with 1.7s the shift points may need to be higher than 6k?
Old 06-28-2011, 03:25 PM
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they dont NEED to be higher, but with the upgraded springs and rockers you can rev it a little bit higher than on the stock stuff
Old 06-28-2011, 06:33 PM
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You'll benefit from a new tune. Will you need one? No.
Old 06-29-2011, 03:06 AM
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Originally Posted by God's LT1
So is there anything special needed to run 1.7s? with they clear center bolt valve covers?
Just hack some of the supports and they will fit.
Old 06-29-2011, 04:25 AM
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Originally Posted by SR_94Blackbird
Now this would be cool if it actually sees the light of day.
It'll see the light of day for anyone who orders the setup I'm waiting for someone local to let me borrow their car for a few days so I can offer a "full bolt-on" tune to accompany the rocker setup. It's not the cheapest setup, however it's an easy afternoon swap, no tuning required (but recommended), and absolutely 100% as reliable as a stock motor. 1.7-1.9 ratio on the intake, exhaust likes a 1.6 or 1.7.



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