Lifter oiling an Indy Maxx

So I have non oiled lifter Indy Maxx block. I have a Bridgeport . Has anyone machined the oiling passage on an existing block themselves? Any tips/advice on doing this?
RIP

ok so I am sure that someone, somewhere might have done this I cannot say that I would suggest it. The blocks are drilled from the back through to the front with a drilling process. Not something the average machine shop has the tooling for. In the past when I have encountered an Indy block with no lifter oiling I have sent them back to Indy for that process (only once). Unless the block was ordered with lifter oiling, they do not have or need it, UNLESS you are running a Hyd or Hyd Roller. I have seen people build a manifold system inside the lifter valley to each lifter but that is complicated to say the least.
Todd

drill and tap each lifter bore (1/8 pipe) then use -3 fittings. get your self 2 1 in 8 out or 1 i 16 out dist block . drill and tap rear china wall to oil passage. Plumb the china wall to the dist block(s) . I used 3/16 brake line and -3 fittings throughout. I use a nitrous jet holder at the inlet of the block to regulate the oil. I use a .050 nitrous jet. Works pretty well and you have to be a good tube bender to fit it all neatly, but it can be done. I have nitrous direct port install experience so it was easy for me. You can buy all the parts you need from induction solutions.

https://board.moparts.org/ubbthreads/ubbthreads.php/topics/2866667/2.html

An earlier thread on this with manifolding pictures.

Thanks for the link.

Dave

The oiling setup shown in the link was together for 4 seasons with a decent amount of street miles and probably 100 or so passes. I had 2 rollers that were ready to be replaced when I tore it down. That's with just over 0.800" lift and about 760lbs open pressure. This time around I have the block bushed and I raised the oiling ports up in the lifter bores a bit. I think I had them breaking through too close to the bottom of the lifter bores so a lot of the oil bled out the bottom. I went with a bushed lifter this time around too.

just out of curiosity, why do you want your lifter bores to produce oil? I have an Indy block with no oil in the lifter bores, This worked so well I bushed the stock block in my streetcar, this gave me great oil pressure when hot & that was done seven years back & it's still all good.

Pushrod oiling I would imagine

The reason is that 3 different motors I have munched needle bearing lifters. Seat pressure is 350-400 on each. .800+lift. I would like to go to the bushing lifters.
I like the manifold idea, very doable.There was no picture on the link, but I get the idea. It just seems to me that with a Bridgeport, a centering drill, and good measurements, I could pass a 1/4 inch bit right down the middle? The lifters Indy used on this 655 raised cam motor are .904 SBC offset lifters.Really. They have a pressure feed band around them, so oil could me metered into the 1/4 galley with a jet. The trick is would the bit stay true?
If you ever watch Allen Milyard on Youtube, you realize anything is possible.

Really appreciate the replies!

RIP

Some more:

https://board.moparts.org/ubbthread...9968/indy-maxx-block-pushrod-oiling.html

https://board.moparts.org/ubbthreads/ubbthreads.php/topics/2240360/2.html

I am just thinking out loud here, but you won't be able to drill down on the Bridgeport, there is not enough space.
So, can you turn it and use the table travel, no enough room that way either.
So the only way I see it possible, is to turn the ram parallel with the table and rotate the head 90* so that its pointing at you and use the y axis + quill to feed . you will need at least a few length 1/4 drill bits and changing them would be a little tricky, I probably would turn the ram 45*, once I got to longer bits I would drive them with a collet, so that you could change with the drawbar removed.

I was wondering how a Bridgeport would have enough travel, but that's pretty clever! I would want to make sure you can get enough travel before starting down that path. It would suck to end up an inch short!

If I was down to 1 inch I would just hand drill the rest of it on the floor. A floor type drill press is probably the better option.

Yeah I would think an old heavy duty drill press would work pretty well. Lower the table all the way down to the floor for clearance. If I was going to do that job I'd fabricate a drill guide and then buy some super long drills. With the correct equipment it shouldn't be a tough job to knock out but a person would need the right stuff.

I would not suggest this. I am with Todd Marsh. I had this exact situation, and I would not attempt it. I asked one of the best in the business to do it, Weston Machine, and they wouldnt either. It went back to Indy. This can go bad very quickly.

1000%

What can go bad very quickly ?

Modifying the block, it can be turned in to a coffee table very easily

What in the modifying ? I don't understand.

Yes, the long series drill wanders and breaks through the casting, or doesn't properly intersect with the other side, or the drill breaks inside the hole. Then there are all the possibilities of operator error.

We might not be talking about the same thing, being a danger.
I don't see a lot of drilling in the block.
I only see long hole drilling in the manifold piece. All other drilling is small holes.
I don't see how the block can "go bad very quickly".
Please help me understand.

I am, and many above, are referring to drilling the block for pushrod oiling in the manner the OP discussed, as Indy or KB would when they manufacture the block with the pushrod oiling option.

I'm not talking about the machining required for adding the manifold and oil supply lines to the lifter valley.

OK, now I understand.
I also agree, drilling galleys in the block, very bad.
Thank you.

I think that is good advice for any backyard guy but based on what I know about Indy, I doubt that they have any sort of "sophisticated" process for drilling these holes. I'm pretty sure I could come up with a method for drilling the holes that would work as well as anything Indy has. If someone who has toured the Indy machine shop wants to weigh in with a description of the Indy "hi tech" process I'm all ears.

Deep or long hole drilling success is as much related to the drill edge profile and drilling technique as it is the machine the block is being drilled in. The guy running the machine is going to make the biggest difference.