alright, picking up some comp pro-magnum RRs (1.6), right now i will run strictly bolt on only, but i was wondering, what will the effect on my tune be? make it run leaner?
also, for springs, should I just pick up LT4 springs then? or would LS1 springs work

 

The rockers will have very little effect on your tune, and just to be safe you should change the springs. Whet spring to go with depends on future mods.

 

well, for my next motor, i am getting heads from AI with a custom grind cam, so i would probably need to change springs then anyways, otherwise i am really looking the crane 227 or LPE 219/219 560/560 cam where id be fine getting springs now.
Also, does anybody know how much power im looking at gaining here?

 

If you plan on upgrading the heads, for now I would go with the LT4 springs. They are cheap (~$30), and will work fairly well with the 1.6 rockers.

You'll gain 10-15 hp by upgrading to the 1.6 RR's.

 

No effect on tune.

 

does anybody know what springs for the crane 227 or LPE 219/219 560/560?
i will just get springs for one of those since i plan on running one anyways lol, and this way it will push meinto getting it done sooner

 

ok, im gonna go ahead and buy the springs for my cam swap, will it hurt anything by going with the bigger springs for the 227?

 

Which bigger springs are you talking about?

 

crane 99892's i believe, but i cant find out if their dual or single spring,
http://cranecams.com/?show=browsePar...tType=camshaft
theres a link for the cam card
it calls for a spring thats

Closed 130 LBS @ 1.850 or 1 27/32
Open 314 LBS @ 1.360

 

My uderstanding is the 99892's are a version of the 99893's. The 99893's are good to .710 lift and are a dual spring. Are you sure you need this much spring in your car? You'll also have to pull the heads to have the valve seats cut to fit the dual springs.

 

Even though no affect on tune, you should get your car re-tuned anyways to get the most out of the rockers. I used LT4 springs with my 1.6RRs.

 

im trying to find a single-spring that will work for the 227, i guess i'll just call up crane

 

What is the lift of the 227?

Crane makes an H11 Tool Steel single spring that is good to .600 lift. Then you have the Comp/PAC 918 that is good to .600. PAC also makes a special 918 that is good to .650.

 

479/518, so maybe even a LT4 spring would work? im not entirely sure.

Im not even sure if it matters, because my custom lunati came for my 383 today haha, and that will have to get those pacs that are good to .650, maybe even a bigger spring lol

 

Go with either the 99892 or the new design 99893 which is supposed to last longer. It is a dual coil spring. It will fit without machining.

I use the 99892 on my 227---max lift is 640. The 227 max lift is 552. JMHO