Thread: high volume or standard oil pump???

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the big pick up is stock to the vortec gm engine stock 5/8 and now on all new chevys 3/4 all not to many engines have as small 5/8 a pick up ? this sucks up the oil ? so like a small straw in a malt ? so it would take you less work. i will buy you a malt and give you a small straw ?? i did not say open any thing up in the oilpass ? no .so you will not dry it out with the stock pan. BOY lets start a pissing countests yes you run them oil clearances any where YOU want. but you may want to think about them nascar boys engines. they all use a much smaller main and rod size is not stock they use the best money can buy parts they do not move as much lower grade stuff.by this i mean the rod getting out of round at hi rpms and the block to and have the best money can buy cranks so at this point could we move the bearings clearances up ?you bet . but i have built many engine i could make a list but will not bore you with it. BUT never lost any bearings abit loose . stock 350 chevy they give you a running oil clearances from 1.5 to 3 now is for stock .003 is to much but not for racing so when you say stock ?? what do you mean ? a chevy small block with the rods on the big side of spec and a stock crank std and the rods running a clevite77 will get you .003 on the rods with the rod at the small end this is where i put all of may bore housings will get you with the same mich 77 .002.5 now if we use a king cr807am you will get.001.8 now all i will say on this is there is no stock clearances there is a low and a hi so i build all stock engines with a round .002 about with a stock pump but not race stuff loose is better as far as the rods getting hammer out by adding a .001 no way , the bearing rides on the oil YOU HOPE i have seen housing bores go out of round if they were a stock size? ok small side of spec things may have been very bad with a big size crank and you never want to dry any thing up on a top end on a big block less you drag it only and i still do not do it .or you own a valve spring company