i was on craigslist the other day looking for an ac compressor an luckily i found one. the guy had a bunch of lt1 parts for sale and had a set of proform 1.6rr (self aligning) for 40 bucks. not bad, i thought, so i picked them up along with the ac.
so my question is, could i run them with a stock top end in my 95? i dont really know that much about motor work so im sorry if its a dumb question

thanks!

 

Your valve covers might need cutting but youre not going to notice a difference. Stock rockers are 1.5, so you can run them. I would wait until you get the springs and cam in first.

 

I would highly recommend new spring. LT4 springs work very well with a stock cam and 1.6 RR's and they're very inexpensive. Thats what I have on mine. Good luck, Mike

 

Its not so much the added lift the 1.6's will provide, as the reduced friction going to a roller rocker setup. Can be 15 hp
to 20 hp difference going to roller rockers over stamped steel factory rockers. Definitely get the hot cam springs, get new valve seals, and you will be set to go. Enjoy


hth

andy schuck

 

andyysc told it correct. The reduced friction will net you around fifteen additional horses due to less internal friction as compared to the stock stamped oe style. The reason people get the higher ratio rockers are due to the upgrading of cams, heads and springs. Since an aftermarket cam produces more lift you need better springs that can handle the lift which is the same for rockers. The stock rockers would not give you the lift you would want with aftermarket parts limiting you all together. In your case though id say about ten horsepower with no mods due to less internal friction. I have the same rockers and i received about fifteen more horses with a head and cam package and also hell of a buy for forty dollars mine cost about 185 new not many chances to gain ten to fifteen horses for forty dollars.

 

When I put them on my car I picked up 2-3mph in the 1/4 mile.........I was very satisfied with them

 

I gained 1mph.

 

Thanks guys... I'll see If I can get some lt4 springs and put them in this weekend