The guy that puts my motors together locally is a SB chebby guy. I was at his shop yesterday BSing and he has a R5/P7 in there to be gone through. One question that has come up is what is the aluminum tube looking thing that is under the 60mm needle bearing cam tunnel? From the rear of the block it looks like a tube but from the front looking into the tunnel it looks like a solid spool.

Never seen it under. EEI Gannasi solid lifter engines had a tube to spray oil on the cam lobes on top to help make it live at 9,200 for three solid hours. Everyone did something different.

What shop did the engine? Easy to figure out. Either EEI, Everham, Penske, Arrington, Bill Davis or whoever.

How about a pic.

Haven't seen anything secret squirrel that couldn't be easily identified on these.

My cheap phone won't do pics. Builder dude says the owner had bot 10 of those engines. I thought it was a oil spray tube but the rear end seems open and it and the cam just have a alum plate covering u the hole. No idea which shop these are from and the non-Mopar builder doesn't know either. He was gonna remove the tube as part of the exploratory surgery. Maybe it is to scavenge the cam tunnel. Not much area for oil in the valley to return either. Below thee main caps were thick alum "cap supports" that really just segregated the oil in the pan.

Man the little wrist pins, small rod journal, honda looking I beam rods, tiny piston... The BW must be tiny.

No clue. Oil is scavenged from the long fitting behind distributor. It screws in bellhousing flange. But, has a long tube with o-ring that goes into cam tunnel scavenge pocket.