I started my 1.6 roller rocker upgrade on my V8 S10 Blazer today. I have the L31 Vortec 350 ......we pulled the heads to drill the holes and while we had the heads off we discided to have them cleaned and checked.......i found out that two intake and one exhuast valves were leaking...when i filled them with water they leaked...............getting them clean, checked and putting better springs in while i have them out.........and the sluge i found in the motor made me puke and want to kick who ever owned this motor before me right in the arss

 

got her all done.....here's some more build pics
intake cleqned

heads cleaned w/beehiv high performance valve springs

 

1.6RRs(i love tis pic)


she runs great, a little peppier, more mid-range, and she sounds alittle deeper and louder

 

Lookes good, is there a reason for the 918 springs as in a cam or did you just go with them for an upgrade?

 

i was planning ahead............the springs will give me .600+ lift, so it was safety for the 1.6RRs while i was having the heads cleaned and freashend up, and also they will be ready for the cam when that time comes

 

Cool, came out nice-N-clean!!

 

thanks

 

Did you have to clearance the heads for the pushrods because of the new rocker ratio?

 

yea i had to drill the push rod holes out to 1/2"