They are LHU's now.

 

Thats flippin' cool

 

Yeah but it's still an LNF design just named it that most likely

 

It's essentially a similar engine, but it is not the LNF anymore.

Calling it an LNF design isn't totally accurate. Yes, it's based off of what was once the LNF, but there have been enough changes made to designate a whole different engine code.

LNF guys need to come to terms with this (not that ur one).... The LNF is no more

 

Actually, I have been told that it is lined with very thin liners. But they are not considered sleeves?



lol. Nope. It's not mine. It's another guys on the buickforums.

You can find them on car-parts.com for around the same price.

 

Yea the nikasil is a sprayed in liner.

 

And not cheap to get a cylinder renic'd if you damage it. At my work it costs $330 to get a cylinder renic'd. Now that's passing through a few hands to get it done. If you went right to the source it would be cheaper obviously.

 

well I wouldnt want the whole motor but if someone were to come across an LHU block, send it my way

 

I hope this ends well. I remember in college my teacher talking about all the engines he replaced for BMW with engine failure due to the material stripping from the sidewalls of the cylinder. Guess time will tell.

 

Seeing as ZZP had 4 of these sitting around im curious if they have done any testing of pressure capacity on the blocks?
would love to know how they compair to say the stock/LNF/LSJ VS say the Girdled block

 

I can guarantee ZZP will eventually test the limits of this block.

 

LHU is actually and LDK that can run on E85

 

How is this a high performance version of the LNF?

it like 200whp in every vehicle its in - Your saying with no sleeves, that alone is the basis for this conclusion?

Even though it might just blow up over 300HP..Is there some new forum for these motors being tuned to **** or something??

 

way over 200, and the GS is 270 and almost 300 lb ft of torque. GM builds these engines to last for warranty reasons so they under rate them and detune them for longevity. Bet you could take that Regal GS well over 300 when support comes along for them.

2011–present Buick Regal Turbo 220 hp (160 kW) @ 5300 rpm 258 lbˇft (350 Nˇm) @ 2000 rpm
2011–present Saab 9-5 Turbo4 220 hp (160 kW) @ 5300 rpm 258 lbˇft (350 Nˇm) @ 2000 rpm
2012–present Buick Regal GS 270 hp (200 kW)[6] 295 lbˇft (400 Nˇm) @ 2400 rpm
2013 Buick Verano Turbo[7] 250 hp (190 kW) @ 5300 rpm 260 lbˇft (353 Nˇm) @ 2000 rpm

 

That block will have no problem pushing high hp. It's not like it's an all new idea.

 

This.

 

there are a few on car-parts.com. Just search for a 2011 Buick Regal Turbo.

 

Details of the new LHU block: http://www.gmpowertrain.com/Powertra...0turbo_v2.docx

or this link: https://www.dropbox.com/s/ei12w4hses...20turbo_v2.pdf

"...The main bearing bulkheads, which support the crank bearings, as well as the cylinder borewalls have been significantly strengthened to support increased engine loads. Refinements to the oil distribution system enable improved oil flow throughout the engine and an expansion of the coolant jacket, along with the use of cast-in-place bore liners, allows more precise boreroundness and improves the block’s ability to dissipate heat."
That explains.

Lots of differences to the LSJ/LNF block (oil pump, balance shafts, crank bearing dimensions, reversed head etc.) so not sure if this is swappable with and LSJ/LNF head.

 

damn I searched with 2012 and didnt get anything, Ill try 2011 later

only one way to find out...

 

Definitely interested in the LHU Block...

 

I'm curious if these will work with the lsj...

 

Probably a better chance of it working with the inf tho

 

I am sure it would with an LSJ head.

 

I have never seen a new engine come out of any auto manufacturer that does not claim "new, improved, better, best" etc.

early alloy engines ( remember the unlamented Vega, even the Cosworth Vega) had unsleeved blocks. more recently the Northstar 32 v 8's had a heck of a job with cylinder bores that were just not round.

I am going with Saab/Ecotec/LSJ as a pretty good piece. Trying to adapt a new LHU block to it is an exercise in futility.

Just two years ago, promoted on these forums, the hot tip was the "new Gen2 LNF block".

Suddenly, its not...

so, interesting to speculate. but not worth picking up a wrench to do it. Or even think about it. lol

 

how much power could the stock LNF block and sleeves hold before giving up? what about the 2.2L block and sleeves?