Bump for a great product. I am on MRB sleeves. I have 1500 miles on them and made 210 psi on the compression. About to go to the dyno with more fuel and cams. Will be going for 440-450whp with just a 20g and e85.

 

I can attest firsthand to the quality of these sleeves. They are beautiful and you can tell they are so much higher quality than stock it's not even funny.

 

mrb you need to throw up the video of my sleeves when you tapped em with the wrench vs the stock sleeves. One is a bell and the other is a dud. Guess which one is the bell.

 

nvm found it.

 

Yeah we did the same thing when installing my sleeves...

 

ok. dumb it down x1000 for me here. Point of sleeves are to make block stronger? If so how much these go for from mrb

 

and is there a link/website/phone number?

 

sleeves don't really make the block stronger. sleeves make the sleeves strong.. but i know what you're asking here, and yes your thinking is correct.

filled deck block > mr b sleeves > stock sleeves

 

filled deck (ZZP) block + mrb's sleeves > all

 

thought about it. may do it.

 

Thanks for the simple equation saved me a lot of researching time, many thanks! Feel like pay-pal-ing you a beer

Could anyone give me a simple pros/cons list of darton sleeves vs zzp girdle?

From my little knowledge I have on the topic :

Darton

Proven record of 700+ hp reliability in drag racing
Cheaper than girdling

Cons
More material removed than girdle
More heat than girdle

What's an earlier breaking point for the LE5? Sleeves or the milling/block? Which breaks first on higher boost? Which would break first with heat/power? (Generally speaking)

Trying to plan out my next engine budget, debating sleeves/girdle. Thanks in advanced for any education; it's new territory for me.

 

with the dartons and having to machine out the block. you are weakening it's integrity. the sleeves may hold. but the block itself may crack or developed leaks. with mr b sleeves or a zzp girdle with stock sleeves you aren't taking away from the block but instead increasing it's structural rigidity by supporting the top of the sleeves where they aren't from the factory. the problem with these engines aren't weak sleeves. it's weak sleeve supports. or in this case, no upper sleeve support.

stock gen 3 2.4



stock gen 2




and what happens when you don't have that upper sleeve support.





now yes the darton sleeves offer support around the top. but part of what makes them "stronger" is the fact they're so thick. but that also means more machining and removal of portions of the block. and smaller coolant passages due to the increased size. which is why most people with dartons still bust ringlands because the engine can't cool itself sufficiently enough.

 

MrBs sleeves are the best option for those looking for an affordable way to do it right. i took MrBs sleeves to a local shop ans had them installed, bores to fit the forged pistons, they balanced the assembly, and polished my crank and then some for 700 bucks.

These sleeves are legit, and imo the best option for someone looking to do their own build.

Hmmmm.....a 2.7l would be interesting

 

Thanks guys for the education! pay pal beers to all! What was the total build cost budget? $700 for rebuild + sleeves + shipping ?

Roughly of course.

Thanks in advance

 

well the sleeves are made a few thousandths underbore so you can hone them to match your rings and pistons. if you're going to do these i would at least get some JE pistons even if you use the stock rods. these and pistons will be more than happy to spit out high 400s on the right setup in an otherwise stock engine.

 

part of the problem with the stock sleeve it is weak and can flex under a hard load these wont flex (they are made from ductile iron a chrome moly) so by eliminating flex the rings seal better and it should help reduce block load

for the guys that are budget minded and cant afford a zzp block or dartons these are a good choice they are stronger then stock

 

Would it be possible to buy your sleeves now? Just the sleeves? I'm a long way from having the cash for my girdle. I wonder if I can send the sleeves to ZZP when I'm getting the bottom end machined.

You made my Ecotec dick get a little hard....when you mentioned a 2.7L LE5, filled ZZP girdle, mr B sleeves, 9:1, rods, polished/cryo. Crank etc..,,, can you say bullet proof ???? That's some XXX car **** right there!

 

If someone does the research and can get the sleeves without you doing the legwork the least you could do is not insult him and ask for just the sleeves. He may sell them to you at a considerable price increase but the install, labor, special tools, etc all cost money and is where he would make his money from these.

 

Ohh in kentucky? That's perfect lol. Might be heading over there when I do my build so if I decide to get sleeves I'm heading to mrb. 2.7? How does that work? Any gains from that? Or just for being able to say its a 2.7?

 

Oh for sure bai! No insults were intended, I respect the man for sure for his tooling skills and help for the community! was mostly brain storming. I'll shuddap if I be causin grief/de-railing his thread. Sorry boys

 

they 2.7 is a wet sleeve and cost a lot more

no insult taken

 

All I want to know is, what does GDS stand for?

 

you seriously don't know

 

good dick smells.

 

Hes never had it..lol