If you are referring to what Herman at Platinum has found in his testing, our testing showed the exact opposite. The bottom line is that you should test the block that you plan on building and see how it changes over time. The fact is that Nissan didn't change its alloying mix with any of the RB blocks. Some are harder than others primarily because casting is an inexact science and due to the amount of age strengthening and age hardening that takes place. Cast iron is one of the materials that age hardens over time. When you test a new block of any type against an aged block, you'll find the old block to be harder about 90-percent of the time. It's true that we don't get a lot of RB30 blocks in the States. We've do one RB30 block for every 30 RB26 blocks. As someone else mentioned, the RB30 poses a headache for AWD installations. Installing the block girdle is a significant pain in the ass. The one we installed was revision 27 and had fitment issues like it was an early prototype. In all fairness, this customer wanted to use aluminum rods which I am also not a fan of using which made clearance for those billet bandaids a pain in the ass. We have never seen RB26 blocks split or balloon up to 1,550bhp. It seems to be a major issue in the southern hemisphere for some reason. Maybe because water spins the opposite way when you flush. But in all seriousness, we have been using N1 blocks which do have a thicker deck than standard 05U blocks, a fact that cannot be disputed. However, the significant price increase for N1 blocks has more builders pushing standard blocks. Whichever RB block that you start with, the quality of the machine work and the quality of the tune are going to have more of an effect on performance and reliability than block selection alone.

@@dsport im going off what a different well know engine builder here from Australia has said not from my personal experience but his. My bone stock n/a rb30 single cam is only running 450rwhp with a little boost. But he holds multiple records and has many 1700hp engines which is about 2000hp in the states holding together for full race seasons. He also helped develop the nitto stroker kit. He can build a reliable rb26 but still doesn't hold a candle to the reliability of the rb30. My old boys rb26dett omori cracked a block on 22psi.

You said it was revision 17... and may be better by revision 21. Which is it? Makes me have a harder time trusting your opinions.

@@drewdavis239 check out maatouk racing one of the best here in Australia arguably the world. Many many rb powered records and have seen his race engines as reliable street engines lasting 5 years opened up with plenty of life left in them

If both end of the wire are squared off and there is a bit of interference, you'll be set. The clamping of the head to the block will force the ends together and eliminate any chance of leakage. You can do a 45-degree if you like, but it's a bit harder to match on both ends and to regulate the amount of interference.

When it is done correctly, the sealing created by the O-ring and MLS will be superior to anything that a gasket of any design will deliver in terms of combustion sealing. You can also add a receiving grove in the cylinder head if a copper head gasket and SS ring is used. This can also provide extreme sealing. The best sealing option is often dependent upon the design of the engine and the cylinder bore spacing and amount of material between cylinders for a sealing ring. Even the design of one MLS gasket using a stopper or folded sealing ring can considerable out perform another MLS with just a bead or embossment.

Since he states multiple times that they are going for 50-100% more power than what you quoted, you would fit in with that group of idiots.

at the point where he says that. he's responding to a question asking about the RB30 vs the RB26 the power that build is going to have is not part of the conversation. Thanks for playing though.

@@tangles01 playing against the hard of hearing is always entertaining

@@Chilicharger665 Bad troll is bad

tangles01 auscuckery intensifies

They can machine an interface groove into the head and then run a slightly bigger wire in the block. The SS wire can be used again depending on the condition after removal of the cylinder head compared to the copper o-ring’s that were previously used and saving the needs of redoing the o-ring. The torque that can be applied to the block o-rings is a better solution because of the rigidity of the block compared to the cylinder head. I run these in my Holden 179 with bigger boost than ever designed haha. 😅✌️

It's up to the engine builder and what they are trying to accomplish. Depending on the head gasket, you usually want to go to a location outside of the stopper ring that is located in the gasket. The best way to determine the location is to use Fuji paper and take an impression that shows how the pressure is distributed around the head.

@@dsportwhat pressure range for the Fujifilm?

They're all billet blocks.

Watch the whole video, it's there.

10thousandths give or take is what you want

@@southernracing2468 thanks.

Much harder! Copper or soft stainless steel is the choice!

Till they go faster than 6.5 @218mph with a terrible 1.13 60ft on a radial tyre, they are not the rb kings. Maatouks holds the record for the world's fastest and quickest rb and they will only go faster

Mabe a bit more experience than you just a little bit more

Bigbot Hoee yer clearly not 🤦‍♂️🤦‍♂️🤦‍♂️

@@salvatorehest5516 clearly they do easiest way to settle this is drag race with both parties

Bigbot Hoee haha I’ve already been faster and made more hp than they have with any RB, remember Aussies are the kings of the RB platform 😉

@@salvatorehest5516 knows wassup. We aussies have been building the fastest and most powerful rb's since forever And yes the rb30 and rb20 blocks are of harder material.

That's a hundred year old myth, that's been proven false. There's even a half hour you tube video about the subject, guy sets up some files in a reciprocating machine one lifts on return one doesn't. I believe this myth was started by a 6th grade shop teacher that wanted to make himself feel important during the 1800's.

No they don't here in Australia we make way more than 1300hp without splitting blocks.

If we did that there wouldn't be any quick RB-powered GT-Rs in the States. LOL .

Those are billet blocks doing those times dude🤦🏻‍♂️