roller lifter feed holes

i am getting close to completing a 557 with a kaase spec roller and crower lifters with pin oiling.the rockers are WW.my question is should i put a small notch in the lifter body to feed the rockers more or leave them stock.block is C AND C block,did have dyno time on it before i got it.lifters are new.the only oil feed to the rockers is the lifter to block clearance.not really getting the answers from engine builders.

yes, just a little scratch tho

OK,what what would be best?a small linear groove .01-.02 wide,maybe .005-.010 deep?or a small flat area,.005 deep?i know if its to big it will junk my new lifters!

hbstang wrote:OK,what what would be best?a small linear groove .01-.02 wide,maybe .005-.010 deep?or a small flat area,.005 deep?i know if its to big it will junk my new lifters!

what works great is buy a dremel and use the little cut off wheels, just a slit down into the under cut area

1 pass is all you need

hbstang wrote: OK,what what would be best?a small linear groove .01-.02 wide,maybe .005-.010 deep?or a small flat area,.005 deep?i know if its to big it will junk my new lifters!

To deep ... use a small hand held file and flatten the surface between the hole and the oil groove about .002"/.003"; that is all which is needed.

thank you both for your reply.yes,you can get a lot of oil at pressure thru a small hole.so i think a small flat spot should be enough.