My New Prc heads are In. Dyno Numbers Inside Finally!!!
#86
I just put my Texas speed 228r cam in,heads go on this weekend!I also upgraded to ls2 timing chain,pitted oil pump,and ls7 lifters!I'm also converting to the ls6 valley cover!!let me know how you like your heads!I'm putting my motor in a 68 Camaro and will be months before I drive it
#87
I just put my Texas speed 228r cam in,heads go on this weekend!I also upgraded to ls2 timing chain,pitted oil pump,and ls7 lifters!I'm also converting to the ls6 valley cover!!let me know how you like your heads!I'm putting my motor in a 68 Camaro and will be months before I drive it
#94
I did some measuring with a digital caliper on my clay impression. It seems that all my measurement for intake and exhaust are over .200. But the thing is, I did these clay impressions without check springs. How much can piston to valve clearance be off if your not using check springs?
#97
Ive been trying to figure this ptv clearence thing. I have got good results using check spring and my regular springs, but people are telling me to pull out my liters to install solid lifters. Professionals have told me its not necessary. I got the valley cover from scoggin dickey.
#99
TECH Resident
iTrader: (2)
Join Date: Sep 2010
Location: Salisbury, NC
Posts: 909
Likes: 0
Received 0 Likes
on
0 Posts
yeah see with no oil pressure and full weight valve springs the lifters wont pump up so youre compressing the lifter instead of pushing the valve down. If you can find out the total lifter plunger travel you could add that to the PTV clearance. your numbers are too good to be true. thats probably better than stock lol