LS1 at the machine shop
Thread Starter
Staging Lane
Joined: Jan 2009
Posts: 69
Likes: 0
From: King George, VA
LS1 at the machine shop I just got done delivering my engine to the machine shop. They will be replacing all the bearings, grinding the crankshaft, boring it .030 over, checking the values on the heads, mating the heads with the engine and flushing and cleaning all of it.
I would have it re-sleeved and stroke it but I just don't have the money for that right now.
I can't wait to get it back and put in the Camaro.
I have a couple of questions for everyone:
What kind of pistons should I get?
Should I keep the stock connecting rods?
And any other thoughts or comments greatly appreciated.
Thank you in advance
I would have it re-sleeved and stroke it but I just don't have the money for that right now.
I can't wait to get it back and put in the Camaro.
I have a couple of questions for everyone:
What kind of pistons should I get?
Should I keep the stock connecting rods?
And any other thoughts or comments greatly appreciated.
Thank you in advance
you cant bore a LS1 .30 over
all you can do is simply hone the cylinders and then move up to a 3.905 piston I think it is.
if the machine shop told you they can make it .30 over they lied to you and you should find a different place to work on it.
P.S. if this shop does try boring it .30 over then consider your engine ruined.
all you can do is simply hone the cylinders and then move up to a 3.905 piston I think it is.
if the machine shop told you they can make it .30 over they lied to you and you should find a different place to work on it.
P.S. if this shop does try boring it .30 over then consider your engine ruined.
TECH Apprentice
Joined: Feb 2007
Posts: 369
Likes: 14
From: Canton, GA
I think someone is going to be disapointed. I would get my motor back before it gets ruined. Most of what I have read and been told, not one person has told me you can do more the hone the cylinder walls. Good luck.
Max bore on an LS1 is .010 and most people do .005 to be safe and you must sleeve the engine.
Me you get your engine back and run fast and hard. If you do not sleeve your engine then you are only able to do some clean up honing and that's it. Please CALL that shop and tell them not to touch your engine they have no idea what they are doing. just my .02
Oh let me see you got a really good deal hu?
Me you get your engine back and run fast and hard. If you do not sleeve your engine then you are only able to do some clean up honing and that's it. Please CALL that shop and tell them not to touch your engine they have no idea what they are doing. just my .02
Oh let me see you got a really good deal hu?
you should be alright, if you haven't even ordered the pistons yet i doubt they've bored it already. but yes if they didn't KNOW you can't bore a ls1 .030 over i would be leary of letting them do the work.
Thread Starter
Staging Lane
Joined: Jan 2009
Posts: 69
Likes: 0
From: King George, VA
IDK??? The shop has been doing Chevy Performance race engines for over 20 years in the Richmond area. They have worked on every Chevy engine to date.
I called them and they said they are going to hone it out and re-cross pattern the cylinders. They haven't started working on it but when I first gave it to them, they said they will have to bore it to get rid rust on the walls. I told them to bore it as much as they can.
I guess I will have to wait and see what I get back.
They might even re-sleeve it, I am waiting for them to call me and tell me what the deal is.
I called them and they said they are going to hone it out and re-cross pattern the cylinders. They haven't started working on it but when I first gave it to them, they said they will have to bore it to get rid rust on the walls. I told them to bore it as much as they can.
I guess I will have to wait and see what I get back.
They might even re-sleeve it, I am waiting for them to call me and tell me what the deal is.
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Most shops I've dealt with want the pistons in hand before they do any honing to get the right clearances. I've never checked on the cost of re-sleeving a block, but I would think it would be cheaper to find another block then to have it sleeved 
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Amen ^^^
Like I always say advice is free and not taking advice gets expensive but I guess people like to find out for themselves.
IDK??? The shop has been doing Chevy Performance race engines for over 20 years in the Richmond area. They have worked on every Chevy engine to date.
I called them and they said they are going to hone it out and re-cross pattern the cylinders. They haven't started working on it but when I first gave it to them, they said they will have to bore it to get rid rust on the walls. I told them to bore it as much as they can.
I guess I will have to wait and see what I get back.
They might even re-sleeve it, I am waiting for them to call me and tell me what the deal is.
I called them and they said they are going to hone it out and re-cross pattern the cylinders. They haven't started working on it but when I first gave it to them, they said they will have to bore it to get rid rust on the walls. I told them to bore it as much as they can.
I guess I will have to wait and see what I get back.
They might even re-sleeve it, I am waiting for them to call me and tell me what the deal is.
IDK??? The shop has been doing Chevy Performance race engines for over 20 years in the Richmond area. They have worked on every Chevy engine to date.
I called them and they said they are going to hone it out and re-cross pattern the cylinders. They haven't started working on it but when I first gave it to them, they said they will have to bore it to get rid rust on the walls. I told them to bore it as much as they can.
I guess I will have to wait and see what I get back.
They might even re-sleeve it, I am waiting for them to call me and tell me what the deal is.
I called them and they said they are going to hone it out and re-cross pattern the cylinders. They haven't started working on it but when I first gave it to them, they said they will have to bore it to get rid rust on the walls. I told them to bore it as much as they can.
I guess I will have to wait and see what I get back.
They might even re-sleeve it, I am waiting for them to call me and tell me what the deal is.
also, just for refrence...the only thing an LS1 and a Gen I/II small block have in common is the crank pin diameter for the rods, and rod bearings. everything else is different. ive found when looking for advise or a machine shop is to walk in the door and ask them that question. "can you tell me what the LS1 and original small blocks have in common?"
also, just for refrence...the only thing an LS1 and a Gen I/II small block have in common is the crank pin diameter for the rods, and rod bearings. everything else is different. ive found when looking for advise or a machine shop is to walk in the door and ask them that question. "can you tell me what the LS1 and original small blocks have in common?"
Thread Starter
Staging Lane
Joined: Jan 2009
Posts: 69
Likes: 0
From: King George, VA
First off, thank you everyone for your replies.
The machine shop called and I told them everything that you all have posted. They finished the heads (the matted them with the block and checked for cracks, also they are going to rebuild them), the checked the connecting rods and they are fine, also they are grinding the crankshaft and balancing it. He also said that they can not bore it .030, their LSX guy came back from vacation and he will need to purchase the pistons to match them up with the cylinders, also they will get my connecting rod bearings when they have finished the crankshaft.
(I asked the LSX guy "can you tell me what the LS1 and original small blocks have in common?" and he gave me the right answer. ) He laughed
He also said more then likely, it will be 3.905.
It seems like they know what they are doing. I guess the first guy I talked to didn't work on engines. lol
Thank you again for all the concerns and relies.
The machine shop called and I told them everything that you all have posted. They finished the heads (the matted them with the block and checked for cracks, also they are going to rebuild them), the checked the connecting rods and they are fine, also they are grinding the crankshaft and balancing it. He also said that they can not bore it .030, their LSX guy came back from vacation and he will need to purchase the pistons to match them up with the cylinders, also they will get my connecting rod bearings when they have finished the crankshaft.
(I asked the LSX guy "can you tell me what the LS1 and original small blocks have in common?" and he gave me the right answer. ) He laughed
He also said more then likely, it will be 3.905.
It seems like they know what they are doing. I guess the first guy I talked to didn't work on engines. lol
Thank you again for all the concerns and relies.