High Volume vs Standard Volume Oil Pump

My first head porting experience created a 340 that would turn 7200 rpm(heads were not as impressive as it sounds) My first two runs down the track, would cause my hyd lifter to clatter all the way back to the ET Shack! added an extra quart of oil (over filled) and the problem when a way.

those of you on the Stock oil Pan/ High Volume Pump= suck dry could us the above as an example.

I added the extra Q because i thought it was uncovering the pick up tube at launch.(Young and just starting to race) Now latter on in life i know that it was NOT uncovering the pick up at launch.(60 foot times were 2.8x:happy7: ) personally i think it was the aeration of the oil at the oil pump at high rpm.

A radiator needs a pressure cap to keep the water from boiling. or to raise the boiling point. If you have a pick up tube that is causing a restriction aka creating a vacuum(lower pressure in the pickup tube) you could cause the pump to cavitation and cause micro bubbles, foam kinda. That would cause your lifter to clatter (not pump up) and as was said above damage bearing in the long run.

Swinger340 I'm glad to here your turning 7500 with you Kevko pan. as that's the one i will be using this time around. I still wish some one would come up with a larger pickup tube for the stock chassis cars.

Even if they did, you would still have to deal with pickup thread diameter for the pump.