domesticimportls

ok so i was talking to this guy in md and he says hes a big lnf tech. he told me that he was trying to put a built 2.2 head off a cobalt ls on the 2.0 lnf block.. i guess hes trying to do what the subaru guys do wen they put the 2.0 wrx head on the 2.5 sti block.. i dont know about this so i figured id ask and see if any one has heard of this or tried it. idk why he wants to do it but its not my car so good luck to him i guess..

FasterIsBetter

Sounds a bit screwy. He will probably lose the LNF powerband if he can get it to fit because he's going to lose the variable valve timing that adjusts with load, boost, and etc. All I can say is goodluck with that. Guy needs to just build a 2.2....

domesticimportls

yea i just kinda stopped paying attention when he said that. lol i mean im no gm tech by a long shot but it doesnt make much sense to me. doubt it will work, if i happen to see the dude again ill tell him to make an account on css.net, comes into my work sometimes. pretty much the vibe i got is he knows everything about everything and no1s got **** on him, and hes got like 3 teeth total so it makes it that much more hillarious, not hatin just sayin.... lmao

CMVsst2010

iTrader: (2)

also reminds me of like the ls/vtec builds. i mean i dunno how well that would work out but in all honesty i think it would be sweet if there were some way of turning the lnf into a 2.2L. won't happen but the thought would still be sweet lol.

FasterIsBetter

ZZP will probably make a stroker kit for the LNF soon. They already have one being worked on for the LSJ I believe.

CMVsst2010

iTrader: (2)

That would be pretty frickin sweet if they did!

09BlueBaltSS

Can probly stroke it to 2.16 like the GM race motors. On another note, why are we or would we want to stroke the motor when cant even get enough fuel to feed to 2.0DI into the 600 range????? Seems like we need to tackle the fuel issue first and the tranny case flex

CMVsst2010

iTrader: (2)

very good point. just getting a little ahead of myself lol

09BlueBaltSS

Oh and maybe the guy meant put the LNF block into the LS cobalt?

Wangspeed

iTrader: (2)

Funniest thread all day. Let us know when he gets the injectors to fit.

hawlyns711

iTrader: (2)

what about a DI lnf head on an lsj block?

rnjmur

I'm sure it will bolt up, but good luck getting it to run right, if at all. He will never get the VVT to work right from the 2.2 on the LNF (if he even kept the VVT). You will have to plug the injector holes on the 2.2 head which is going to be a big downside right there. The car is not going to want to run without the CPS and I don't think the CPS from a 2.2 head will work with the LNF PCM and the LNF CPS will not work on 2.2 cams.

All in all, the answer is that it is a very bad idea and it isn't going to work. If you want a built head for an LNF, you need to build a LNF head. I don't think they make aftermarket cams for the LNF, and I'm not sure if they make ANY aftermarket parts for the LNF head.

Where are you going to put the injectors? Also, how would you tune for VVT on an LSJ?

hawlyns711

iTrader: (2)

^The head would be DI, so the whole setup would need to be swapped. and I wasn't thinking of tuning as much as I was swapping wiring/pcm from sstc to sc model. I'm just putting it out there, possible? probably. some people might have more input that's what I was getting at.

Pyros777

iTrader: (4)

Well theres always the LAF.. 2.4L, DI, VVT.. seems like a good candidate for an LNF head swap.

http://en.wikipedia.org/wiki/GM_Family_II_engine#LAF



Don't think it would really be worth it though. A turbo LAF on the other hand...

BYT*SS*TURBO

iTrader: (6)

Wow....

And the Subaru thing is using a bigger block with smaller heads to RAISE compression, what he's doing would LOSE compression

09BlueBaltSS

Just make it up with boost haha