LT1Falcon

iTrader: (3)

im considering going with some 1.6 rr. i have a few questions though. 1)will i need to tune the computer afterwards? 2) can i go with aluminum or should i stick with steel for the street? 3) what are the best rockers for 200 dollars or less? 4)is it necessary that i upgrade to better springs and if so, which ones? ive heard maybe LT4 springs for 50 dollars? 5) will i notice a difference in exhaust tone and idle?

i realize some of these might be stupid questions but im just curious before i start making real plans. thanks guys

imnotplutonium

iTrader: (4)

I have been wanting to do this mod for a while but am waiting until I can get all the money to do the entire cam swap.

You should get a tune afterwards since it will change your air/fuel mix.

Not sure on the material, I would expect aluminum to be ok

If you upgrade the rockers to a larger size I would def. upgrade the springs, and I have heard the lt4 springs are not that good. Also apparently the beehive springs have been breaking lately too.

I would expect an exhaust note change.

BlackScreaminMachine

iTrader: (17)

1) No, but a tune never hurts

2) Both are fine BUT for the higher HP applications go with Comp Cam Pro mags, weight doesnt matter, aluminum can flex.

3) Comp Cam Pro Magums

4) People have gotten by on stock but is NOT recommended, LT4's are junk, crap retainers, get some Comp Cam 918's

5) Maybe a little, but I doubt it, RR doesnt do much on the bottom end.

LT1Falcon

iTrader: (3)

the Pro mags and the 918s are both out of my price range. it looks like it would cost me about 350 for the pro mags and 200 for the srpings... im lookin for 200 or less for the rockers and 50 to 100 for springs. im not looking for the absolute best, im looking for the best in that price range

burnzilla

iTrader: (3)

-Dual Valve Spring's or Bee Hive's
-Comp Cams Pro Mag Rockers
-Comp Cam Roller Lifters
-New guideplates, locks and retainers. (Crane makes good stuff too)

BlackScreaminMachine

iTrader: (17)

If you cant afford it, start saving. Even if you find a cheap set, its still going to cost you.

LT1Falcon

iTrader: (3)

i knew when i posted this thread that i would get suggestions like this but the fact is that im wanting to do this mod for no more than 300 dollars and if its gonna cost more than that then its not worth the 10 hp or some increase like that. so i guess im asking can it be done for less than 300 dollars for everything including springs?

i dont see what is wrong with the LT4 springs, LT4's came with 1.6 rr didnt they?

9730thanvz28

iTrader: (1)

I did it for a grand total of $50. Brand new 1.6 rockers straight from GM. I used stock springs as well. Guess thats the good thing about havin hookk ups here and there. hehehe.........I noticed a slight change in tone at idle. sounds a little meaner. haha plus I picked up a 10th in the quarter. went from 13.7 to 13.6

StealthFormula

iTrader: (35)

I got Comp Cams Magnum 1.6RR's for around $170ish at a store on ebay and some Crane Springs for $155 from Summit. I gotta go to work but I'll shoot you some links sometime tonight.

LT1Falcon

iTrader: (3)

ok thanks sounds like some good deals

im hopin to find springs cheaper than that though but good price on the rockers

LT1Falcon

iTrader: (3)

bumpp

ks my ss

go with the comp pro mags. i went with crane golds but when i stepped up to a custom cam and titanium retainers they wouldnt clear. so i had to get the pro mags. the pro mags can handle more lift so take that into consideration if you are thinking about adding a cam later on. i think all the aluminum bodied rocker (pretty much all the same) cant handle much over .575 or so on lift.

i also ran my stock springs with the 1.6s for about a year and many track passes with zero problems.

dhdenney

iTrader: (53)

Scorpion seems to have a good rep for a not so expensive rocker. Also you can pickup the roller tip 1.6 rockers at a substantial discount over the full rollers. They have the slots on the stud but can save some cash. Upgrade your springs too. I would like to see someone make a case for the LT4 springs being crap though.

LT1Falcon

iTrader: (3)

ok thanks guys, anybody else?

dhdenney

iTrader: (53)

Something like this http://store.summitracing.com/partde...6&autoview=sku

That particular PN has pushrods too for a difference of $20 so not a bad buy there. If you reuse your stock pushrods, you can pickup rockers like this on Ebay for less. Just stay away from brands like CAT and "xxx Racing." Stick with names like Comp, Crane, GM, Scorpion. I even saw some PBM rockers on there the other day for cheap. They associate with names like Carillo so I might not feel bad about those either.

LT1Falcon

iTrader: (3)

those are 3/8 stud, i need 7/16 dont i? i would kind of like to have full rollers unless you think they are not much gain

buffman

iTrader: (9)

I thought the AL F and Y car heads had factory 3/8" studs also?

LT1Falcon

iTrader: (3)

i always thought they were 7/16

dhdenney

iTrader: (53)

I thought they were 3/8". I would also think a full roller probably wouldn't yield much gain. Anyone have real world results?

LT1Falcon

iTrader: (3)

i did some research, im pretty sure they are 3/8 im comparing rockers in summit again now that i know they are 3/8. how do i know if they will work with LTx motors? some rockers say 1955-87 and some just say 3/8 or 7/16?