pictures would help.
LBM Block and LBM heads
I need help,can't find anything on my block or heads on my 2005 GTO both have LBM stamped where the GM casting should be I've Google search the hell out of it for the last 5 months and still can't find anything any help would be appreciated thanks guys
LBM Block #VF050040964
LBM head 122332∅A∅2329∅51
LBM Block #VF050040964
LBM head 122332∅A∅2329∅51
1 - 20 of 26 Posts
Looks like a rebuilder's/remanufacturer's stamping to me.
yup.Looks like a rebuilder's/remanufacturer's stamping to me.
pop the valve covers off, @FattCattRed. the casting number should be visible on the head surface within.
Greetings Mr. Red & all; Westphal called it. Many engine builders stamp their work. When I worked at my first engine shop job we marked our work. And to this day I commonly stamp or cut my initials in my work & I've been at the hobby level for the last 50 years. Ole' Bob.
I stamped my block with my initials to make sure I got the same block back. Looks like your stuff has been at the machine shop before you owned it.I need help,can't find anything on my block or heads on my 2005 GTO both have LBM stamped where the GM casting should be I've Google search the hell out of it for the last 5 months and still can't find anything any help would be appreciated thanks guys
LBM Block #VF050040964
LBM head 122332∅A∅2329∅51
Thanks guys for replying here, yeah when I pulled the valve cover off I called summit with this casting I found on the inside which were as followed passenger side on the far left by cylinder 8 the letter H∅36 in the dead center of the head was a Big # 2 and a Big # 22 at far right
They couldn't make heads or tails at any of it they were assuming the two and the 22 or maybe dates but the H036 nor did they find anything with the letters LBM I just know it's a matter of time before I'm going to have to know the specs of this engine I mean I've already had to get the transmission I put a shift kit and 4200 stall and I know me only a matter of time before something breaks or I want to make it go faster and without that build list it's going to be hell. I can't find anything on this LBM as builder and just like the one gentleman said I'm originally from Michigan and all the machine shops there if they built an engine they would stamp their letters or whatever in it but they usually wouldn't remove the actual GM casting I've just never seen anything like this but I've also never had an aftermarket block I'm assuming that's what this is I'd like to know your guys's opinion on that and I appreciate you guys coming back thank you so much
They couldn't make heads or tails at any of it they were assuming the two and the 22 or maybe dates but the H036 nor did they find anything with the letters LBM I just know it's a matter of time before I'm going to have to know the specs of this engine I mean I've already had to get the transmission I put a shift kit and 4200 stall and I know me only a matter of time before something breaks or I want to make it go faster and without that build list it's going to be hell. I can't find anything on this LBM as builder and just like the one gentleman said I'm originally from Michigan and all the machine shops there if they built an engine they would stamp their letters or whatever in it but they usually wouldn't remove the actual GM casting I've just never seen anything like this but I've also never had an aftermarket block I'm assuming that's what this is I'd like to know your guys's opinion on that and I appreciate you guys coming back thank you so much
there should be a 4243 in the center if it's the original pair of 243's that have been worked.
are the numbers stamped or machined, or are they cast-in?
it pisses me off when shops do that 💩 . i mean they can go ahead and stamp or machine whatever they want, but don't get rid of the original casting numbers.
are the numbers stamped or machined, or are they cast-in?
it pisses me off when shops do that 💩 . i mean they can go ahead and stamp or machine whatever they want, but don't get rid of the original casting numbers.
i wonder if you need to pull the rockers and rocker stand plate off to get a better look
Thanks so here I'm hunting a builder LBM but more than likely it was a previous owner,but then the VF050040964 on the block and then that big long number on the heads 122332∅A∅2329∅51I stamped my block with my initials to make sure I got the same block back. Looks like your stuff has been at the machine shop before you owned it.
View attachment 526816
and to remove the original casting to put these in it's place I'm sure stranger things have happened Man that means I have zero chance of finding out this build if this is the case I dang it..... But I do appreciate your responding though I just hope it's not that case and that somebody somewhere out there knows LBM machine shop or builder LBM anything lol but thanks man
are you sure it's not 035 and not 036? the H might be a number, just hard to see.
and stop using ∅ for zero, please. it's confusing.
a few of the other long numbers you posted look like they are factory markings, i'll have to look tomorrow.
and stop using ∅ for zero, please. it's confusing.
a few of the other long numbers you posted look like they are factory markings, i'll have to look tomorrow.
Definitely cast it in real thick nice letter H∅36 2 22 definitely not etched it's casted in the aluminum and based on the V/springs and the the rocker arms these are LS3 heads I know it's crazy I just can't understand why nothing is or nothing has original GM markings that's what's throwing me off on all of these things trying to cipher what H036-2-22 actually means is like a needle in a haystack I think without knowing or first figuring out what that block number and the number etched on those heads come back as I guess but as always I do appreciate you guys any kind of help like this is appreciated I pulled my hair out for 5 months on this trying to figure it all outthere should be a 4243 in the center if it's the original pair of 243's that have been worked.
are the numbers stamped or machined, or are they cast-in?
it pisses me off when shops do that 💩 . i mean they can go ahead and stamp or machine whatever they want, but don't get rid of the original casting numbers.
Sorry everywhere else I posted without the zero like that would say the opposite of what you just said is that a zero or an O so now I know the flavor of this site I won't do that no more thanks for looking for meare you sure it's not 035 and not 036? the H might be a number, just hard to see.
and stop using ∅ for zero, please. it's confusing.
a few of the other long numbers you posted look like they are factory markings, i'll have to look tomorrow.
if you feel brave enough to pull the trans, there might be a casting # in the back of the engine. maybe stick a scope with a light in the bellhousing and snoop around. it will be near the top.
there should be a casting saying 6.0, 6.2, or 4.8/5.3 if it is a factory block, if you pull the water pump. 5.7's didn't come with the displacement casting #, iirc.
the engine serial number should be on the driver side on the rear of the block.
there should be a casting saying 6.0, 6.2, or 4.8/5.3 if it is a factory block, if you pull the water pump. 5.7's didn't come with the displacement casting #, iirc.
the engine serial number should be on the driver side on the rear of the block.
in that one pic of the rocker bolt head it looks like the letter NP I don't know its my first LS car I got the car for a great price the guys phone number is cut off so I cant call him In your guys opinion does it look like aftermarket stuff or is she a stocker a I got video's of it like to know what you guys think. I got it this past New years eve if I remember right $8,800. with 154K the trans 3/4 clutches was toast so I did have to get that all done but not knowing what I'm looking at and no-one around here "Scarbro WV" will even look at for me so thanks for anything you can tell me about what you see in the pic
i have a suspicion those are 823 heads.
the np is just a casting mark on the rocker stand plate. it's not part of the head casting.
springs and retainers as well as the rocker trunnions and rocker bolts are all aftermarket. so you probably have an aftermarket cam as well.
intake manifold is obviously not stock. wonder if it's built for boost...? or nitrous?
the np is just a casting mark on the rocker stand plate. it's not part of the head casting.
springs and retainers as well as the rocker trunnions and rocker bolts are all aftermarket. so you probably have an aftermarket cam as well.
intake manifold is obviously not stock. wonder if it's built for boost...? or nitrous?
check the numbers on the other head. they might be different.
...what's that braided line for? the one draped over the ABS?
1 - 20 of 26 Posts
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