Quote:

Quote:

I am curious to know if any of the applications that require pressures beyond 380 lbs. over the nose are using steel retainers and or mufflers (backpressure). What dia. pushrods and wall thickness in those applications? Are the applications exceeding 380 lbs. (nose) with success using synthetic oil after the break-in period?



Does anyone want to touch on these?



Steel retainers are OK; I happen to run ti on the intakes and steel on the exhaust to help bring the intake valve assembly weight down much closer to the exhaust valve assembly weight.

Pushrod wall thickness of at least .065" w/ a 3/8" tube... .080" walls probably better, though.

Synthetic oil OK for me, but I like the high-end Redline stuff, not Mobil 1. Also, as I may have mentioned previously, I do run Schubeck lifters.