Big block oiling mods

oldkimmer said

Going from the stock 3/8s pick up to 1/2 inch. I take it u just drill and tap inside the block for the 1/2 pick up or do u drill farther in? Do u guys drill out the main to cam holes bigger? What about inside where the oil pump bolts on. This is a 505 that will be shifted at 7000 with Indy SR heads ported to max wedge size. SR heads have oil lines on the rear to oil the rockers. I do also have a single line Milodon oiling system. Thanks for all the pointers. Very much appreciated. Kim. Using a solid roller cam.

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I'd also use the single line external pick-up. A std output pump will work. I like to ream the oiling holes to the mains and deburr/radius all passages. I like full time rocker oiling and most cams I see have that cut/groove. you can restrict the feed hole in the block via drill/tap for NPT fittings each bank depending on what rocker system you use.