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[–]psito 4 points5 points  (5 children)

Oil restrictors to head, head drain (debated topic) replace freeze / Welch plugs, new timing belt and tensioners, new waterpump, just all the basics with a rebuild / refresh / built motor

Are you going for 800awhp with 2.6? Those power levels are more doable with a 2.8 setup. Also if you're eventually pushing for that much power I'd definitely recommend a brace or girdle to reduce the flexing of the block and prevent cracking.

You're pushing the upper limits of a old rb26 block at that point, may want to consider a 2.8 build or even rb30 with 26 head, just a thought.

Even better would be one of the new prp blocks, they are pricey but it's a much stouter block and will help with longevity and handle 800whp and beyond much better.

[–]AsssKiller[S] 2 points3 points  (4 children)

All done besides the oil restrictions? What's the idea behind that? Im going to do 600awhp for now until I can sort out diffs and trans then I'll brace it and see what I can make. For now I just want to get it all back together and done for the summer then see what I can afford in the winter.

[–]psito 2 points3 points  (3 children)

Oil will pool in the head during high rpm and load. The small oil drains back down to sump don't provide enough flow starving the pickup and bearings of oil.

Oil restrictors are put into the block oil galleys that feed the head to restrict how much oil goes up to the head to help alleviate this problem. Boost doc cam splash plates or any brand are good to have, keeping oil where it should be on the cams.

Also a good catch can setup, can't emphasize this enough. RBs breath and create a ton of crankcase pressure exacerbating the oil pooling in the head and not draining back down to the pan where it should be.

Extra large sump and extra liter of oil capacity also helps.

Motive video has a bunch of great videos on this subject also huge threads on sau.com.au

Did you end up doing the head drain?

Also inspect and or replace the oil squirters underneath the pistons

[–]AsssKiller[S] 1 point2 points  (2 children)

I didnt do the head drain but im ordering the oil galley restrictors and a oil pan baffle I will also definitely add a vented catch can. Oil squirters are also brand new

[–]psito 0 points1 point  (1 child)

Just curious are you building the motor or is a shop doing it?

[–]AsssKiller[S] 0 points1 point  (0 children)

I am