is the stock cam a 199/199 .498/.498 114lsa ?? (I was told this on another forum and would like to verify)

I am just considering doing a rocker swap to the SLP 1.85 rockers and LS6 springs and calling it good there

the 1.85's would give me an effective lift of .542 (assuming the above profile is correct) and since lift is free horsepower this should help out some

 

How did you compute the lift with the changing of the rocker arms? I am also thinking of buying the rocker arms as well. Here are the specs on the cam 230/226 591/569 112 lsa. thanks

 

take your lift number and divide it by 1.7(stock rocker ratio) and then multiply whatever number that gives you buy 1.85(SLP ratio) and that's your new lift.

so.... 0.500/1.7=0.294118
0.294118x1.85=0.544118
so adding these rockers to a .500 lift cam would give you a new lift of .544" lift@.050

adding the rockers is good for maybe 12-18 at the tires...changing overall lift is good but you need to change the duration as well to see very good gains.

 

SS Escalado

divide the lift by the stock ratio (1.7:1) to get the actual lobe lift (.348"/.335") and then multiply that by 1.85 to get the valve lift with the new rocker arms(.644"/.620")

BTW...thats a HELL of ALOT of lift to run without fly-cutting the pistons and cutting down the valve-guides...and stock LS6 springs bind around .600" lift

also..is that a small base-circle cam ??...I didn't think lobes that big on a standard base-circle cam would fit through the stock cam bearings !! (I might be wrong on that though so correct me if I am wrong)

 

the stock LS6 springs wont hold anywhere near the lift he's talking about YELO, but i'm sure he has 918s on his heads with the cam he has...or something even stronger maybe. the stock LS6 springs go to .550 i think...or somewhere in that region.

 

so..back to the original question...does anyone know if that is the stock 6.0 cam profile ??

 

02 LS6 valvesprings can take that much lift.While the rockerarms don't add much duration they do radically change the cam profile by accelarating the ramp speeds.I've run them and got a good boost in performance with no loss in drivability.

 

did-o