main issue is extended load under really high rpm..
they are no wossener, they are Iapel.
shafts dont seem to have a problem if your not using slicks, never had a problem with R888's etc.
oil return channels seem to be the problem, supply doesnt seem to be a problem... its getting the oil out of the head back to the block... but again only with extended high RPM
we have removed the really horrible casting marks... as they are well "horrible"...
valves are ok until again really high extended rpm... only had one engine drop a valve.... and that was not a new engine..
be interested in your build... keep in touch
they are no wossener, they are Iapel.
shafts dont seem to have a problem if your not using slicks, never had a problem with R888's etc.
oil return channels seem to be the problem, supply doesnt seem to be a problem... its getting the oil out of the head back to the block... but again only with extended high RPM
we have removed the really horrible casting marks... as they are well "horrible"...
valves are ok until again really high extended rpm... only had one engine drop a valve.... and that was not a new engine..
be interested in your build... keep in touch