LE5 cam swap into LAP
#1
Member
Thread Starter
Join Date: 06-05-10
Location: North Jersey
Posts: 320
Likes: 0
Received 0 Likes
on
0 Posts
LE5 cam swap into LAP
Title is self explanatory. Do I need a re tune? Are any special tools required for the cam phasers? What are the torque specs for the cam bearing caps?
#3
and yes you will most definitely need a tune with any larger cam, most likely you WILL need to upgrade your valve springs if you plan to take it over stock redline, plus the injectors start to suck ass around 7k anyways. Suggestion: supertech kit
#5
ok got ahold of chevy today and looked the head part numbers... they match, only thing i can think of is the bearings and keys on the cams that could possibility be diffrent...
#10
Senior Member
iTrader: (2)
Join Date: 02-26-09
Location: Ontario, Canada
Posts: 1,040
Likes: 0
Received 0 Likes
on
0 Posts
The cam gears/phasers are all part of the same assembly that comes off together. The cams are pined to line them back up with the cam gears...so I cant see any special tools being needed.
Cam bearing bolts are 89lb-in.
Yes you will more than likely need a tune.
Valve springs are probably fine if you don't plan on bringing it past 7k, same goes for the balance shafts.
Check with GM tho for the PN on the LAP valve springs and the LE5 valve springs, 99% chance they both use the same spring.
Other than that...should be a pretty straight forward swap, then again I've never seen a LAP head before...but I can only imagine it uses all the same parts like the rest of the Ecotec family does.
I would bet the cam gears/phasers are the same between the LE5 and LAP...again check with GM if the part numbers match. Worst case, use the LE5 gears/phasers...again 99% chance they are the same.
Good luck.
Cam bearing bolts are 89lb-in.
Yes you will more than likely need a tune.
Valve springs are probably fine if you don't plan on bringing it past 7k, same goes for the balance shafts.
Check with GM tho for the PN on the LAP valve springs and the LE5 valve springs, 99% chance they both use the same spring.
Other than that...should be a pretty straight forward swap, then again I've never seen a LAP head before...but I can only imagine it uses all the same parts like the rest of the Ecotec family does.
I would bet the cam gears/phasers are the same between the LE5 and LAP...again check with GM if the part numbers match. Worst case, use the LE5 gears/phasers...again 99% chance they are the same.
Good luck.
#11
Senior Member
iTrader: (1)
i know this probably isnt the best at comparing but Car-Part.com--Used Auto Parts Market is showing 2.4L head available when i look up a 2.2 head (LAP)
so that means they would be the same/swappable? and if they are then we could use LE5 aftermarket cams in the LAP
so that means they would be the same/swappable? and if they are then we could use LE5 aftermarket cams in the LAP
#12
newt the springs are the same along with the retainers and seats, anything else besides the gears and phasers that i need? the actual head number itself is the same, same valve cover gasket as well
ya nhanson, i called gm and the part numbers are exactly the same for the head
ya nhanson, i called gm and the part numbers are exactly the same for the head
Last edited by 09LAP; 07-14-2011 at 01:45 PM. Reason: Automerged Doublepost
#14
no one knows if they will work so thats kinda wat the thread is for....but n hanson if you would like to find out more call chevy and ask them if the cam gears/phasers are the same
#15
Senior Member
iTrader: (10)
Everything should cross over, and everything you have to remove should be re-usable, gaskets and such. I know the non-vvt cars have TTY cam gear bolts, the ones on the VVT gears are much different and may not need to be replaced, i've re-used the other ones before with no problems anyway.
I don't see much of a gain from this though, the LE5 cams aren't that big, still a stock cam.
I don't see much of a gain from this though, the LE5 cams aren't that big, still a stock cam.
#18
Senior Member
iTrader: (2)
Join Date: 02-26-09
Location: Ontario, Canada
Posts: 1,040
Likes: 0
Received 0 Likes
on
0 Posts
Well if the head PN is the same then you guys are laughing.
Only thing I could see having a very slim possiblility of being different is the cam gear/phaser, but a quick GM PN search will tell that tale, 99% they are the same.
Its impossible for the bearing tolerances to be differant, its the same head, means it will accept either LAP or LE5 cams.
Is anyone even sure the LAP and LE5 don't use the exact same cams? Or are you guys just assuming they are different?
Only thing I could see having a very slim possiblility of being different is the cam gear/phaser, but a quick GM PN search will tell that tale, 99% they are the same.
Its impossible for the bearing tolerances to be differant, its the same head, means it will accept either LAP or LE5 cams.
Is anyone even sure the LAP and LE5 don't use the exact same cams? Or are you guys just assuming they are different?
#19
well, i assumed they are diffrent untill proven otherwise, i jusy dont wanna throw them in and start ******* shiz up ya know? but im reeeeeeally temped to go find me a pair now
#21
Senior Member
iTrader: (10)
The LAP motor is basically an LE5 head stuck on a 2.2L block, and since you guys are seeing that the heads are the same number anyway, it's really just the exact same thing. You could in theory use LNF cams with the fuel pump lobe cut off, or LSJ cams, if you were so inclined.
This as well. LE5 and LAP cams are probably exactly the same p/n and everything.
Last edited by ItalianJoe1; 07-14-2011 at 02:40 PM. Reason: Automerged Doublepost
#23
Senior Member
iTrader: (10)
Ok, cams on the LAP are probably a little smaller due to the lower displacement and slightly more economy bias of the engine.
I doubt there's a difference, but it would be funny if one of the other 2.4L applications had a bigger cam spec, malibu or something.
Pretty sure power ratings never changed though, so it's unlikely.
I doubt there's a difference, but it would be funny if one of the other 2.4L applications had a bigger cam spec, malibu or something.
Pretty sure power ratings never changed though, so it's unlikely.
#24
Senior Member
iTrader: (2)
Join Date: 02-26-09
Location: Ontario, Canada
Posts: 1,040
Likes: 0
Received 0 Likes
on
0 Posts
There ya go then, buy some LE5 cams and you guys are good to go.
FYI all the non-VVT ecotecs have differant keys for the cam gears, so they probably won't work, my L61 uses a knotch as well as the LSJ I believe, the LE5 I have uses a pin and so would a LAP.
FYI all the non-VVT ecotecs have differant keys for the cam gears, so they probably won't work, my L61 uses a knotch as well as the LSJ I believe, the LE5 I have uses a pin and so would a LAP.