ok so my freind is going to do the bolt on mod of putting 1.6 rockers on his lt1 .. there as adding better lift to his cam , but he dosent know where to buy thease from since he can only find stock replacements for them ,. so dose anyone here know where to get some 1.6's or is any one selling them ?

 

Lt1's never came with rr's, so if he is finding roller rockers they are not stock replacements. Try summitracing.com or jegs even.

 

ok then i mean just replacin the stock 1.5 what ever they are to a 1.6 to get more lift ... what are they called then ? and where should i getum

 

I bought mine from one of the supporting vendors on here, Custom SSI, they cut me a very competitive deal.

 

also, check the board here and ebay, I got my GMPP 1.6 roller rockers for under $200 shipped to my house

 

ok dose ths make that much of a diffrence ? any testamonials ?

 

Yeah, they are a pretty good mod and can add up to 10 horsepower at the wheels. Your friend may also want to consider upgrading his valve springs as well.

 

summit has 2 sets for sale, one is 190ish comp cams magnum 1.6, or a kit for 210 and what i gather is it is the same thing but it comes w/ pushrods. but you can get free shipping and it will be here by x-mas through summit. i have a set of these by the way... just waiting to put them in

 

they will make a big difference if you ever decide to cam your car

 

Do I need new springs if I want to do a 1.6rr install? I am planning on getting a LE1 or 2 set-up within the next 6 months and that will have new springs so if springs are not necessary I don't wanna buy em. I was thinking about Crane non self-aligning 1.6 rr with GMPP guideplates and ARP studs. Don't mean to hi-jack the thread.

 

Yes you will need new springs.

 

That sucks. That seems like a waste of money since I will be getting new springs in the heads I am getting.

 

So just wait and do the 1.6 RR's when you do the heads.

 

LT4 springs cost like 35 bucks threw a dealer but they are somewhat of a pain to swap for only a few months worth of use. So like stated above, your best bet might be to hold out.

 

I'm running GMPP 1.6 rr with stock LT1 springs... 2 years, no problems.