i have an L98 from a 89 vette with stock aluminum heads,stock roller lifters(not pushrods),a ZZ4 cam, and 1.5 roller rockers, i put this in my 85 T/A and i can't get the valves setting right what is the procedure to set them, i bought a hanes book tried it didn't work, called jegs tech, didn't work so im lost please help the car starts but misses the rockers are so sensetive. thankyou

 

do the EOIC method. Search on it. I know sofakingdom mentioned how to do it recently, like within 2 weeks or so.

 

does that apply to my cam and rocker arms as well, im not sure if the camaro and firebird l98s came with rollers only pushrod, im not sure though.

 

all non overhead cam motors will be the same method.

 

One way to do it, you would have to mark the dampner 90 degrees, 180 degrees, and 270 degrees (it doesn't have to be perfectly marked). By starting with #1TDC you would adjust the cylinder that has just fired before it (#2) the intake valve, since the cylinder will be getting ready to open the exhaust valve. The cylinder after (#8) will have just had the intake valve open, so the exhaust valve would be adjusted. Zero lash is where the pushrod just stops moving up and down as you turn the nut, and then the additional turn. some people like a 1/4 turn, some half turn, some 1 whole turn. I like a half turn and see how it sounds.

here's the pattern:
#1TDC #2 INT #8 EXH
#8TDC #1 INT #4 EXH
#4TDC #8 INT #3 EXH
#3TDC #4 INT #6 EXH
#6TDC #3 INT #5 EXH
#5TDC #6 INT #7 EXH
#7TDC #5 INT #2 EXH
#2TDC #7 INT #1 EXH