2001 5.7 LS1 @ Machine Shop. Trying to find 3.903 Pistons
#1
2001 5.7 LS1 @ Machine Shop. Trying to find 3.903 Pistons
I am trying to put my 2001 TA back together. My stock engine had rod come apart and go through #6 cylinder wall when I went to start it up one morning.
I have another block now and it is at the machine shop. At first I was told it would just be a quick hone and reassemble. Now my guy is telling me it looks like it needs to be bored over.
The only set of non forged pistons he can find are for 3.908 which is the max overbore for the 2001 LS1 (sealed power hypereutectic coated around $270). It only needs to go .005. I know there are plenty of options for 3.903 pistons that are forged but I don't have that kind of money right now because I was only budgeting for a hone job.
Does anyone make 3.903 hypereutectic piston?
I did find the Probe FPS Forged Pistons P2600F-003 which are around $500 still though, if I can get a set of non forged and save myself $250 I would really like to do that. If I did have to go with Probe forged, would I have to buy anything else? I think they would work with my stock rods, what about piston rings?
I am just building the engine for daily driver/weekend warrior type. It will never see nitrous, blower or turbo. It has bolt ons, 243s, ls6 intake, and it will be getting a cam from Martin, 226/230 .560/.545 112+2.
I really hate to take it to max overbore when all it needs is .005 over.
I have another block now and it is at the machine shop. At first I was told it would just be a quick hone and reassemble. Now my guy is telling me it looks like it needs to be bored over.
The only set of non forged pistons he can find are for 3.908 which is the max overbore for the 2001 LS1 (sealed power hypereutectic coated around $270). It only needs to go .005. I know there are plenty of options for 3.903 pistons that are forged but I don't have that kind of money right now because I was only budgeting for a hone job.
Does anyone make 3.903 hypereutectic piston?
I did find the Probe FPS Forged Pistons P2600F-003 which are around $500 still though, if I can get a set of non forged and save myself $250 I would really like to do that. If I did have to go with Probe forged, would I have to buy anything else? I think they would work with my stock rods, what about piston rings?
I am just building the engine for daily driver/weekend warrior type. It will never see nitrous, blower or turbo. It has bolt ons, 243s, ls6 intake, and it will be getting a cam from Martin, 226/230 .560/.545 112+2.
I really hate to take it to max overbore when all it needs is .005 over.
#3
Ok, how about this? Probe P2600F-003 pistons? http://www.ws6project.com/user_stor/...oducts_id=4272
$362 from ws6 store. $502 from the summit
What pistons rings? Can I use stock rods? What will this do to my compression ratio? I am trying to figure this out, really trying to have machine work done next week.
$362 from ws6 store. $502 from the summit
What pistons rings? Can I use stock rods? What will this do to my compression ratio? I am trying to figure this out, really trying to have machine work done next week.
#5
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iTrader: (5)
Go with the 3.908 if you can get them. It's only .005 more, meaning it's only .0025 on each side of the piston. It's such a small difference, it won't matter at all. Also, if the block was to have a problem in the future, the .0025 usually isn't enough to clear up any scarring if you have any.
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#6
Go with the 3.908 if you can get them. It's only .005 more, meaning it's only .0025 on each side of the piston. It's such a small difference, it won't matter at all. Also, if the block was to have a problem in the future, the .0025 usually isn't enough to clear up any scarring if you have any.
#7
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iTrader: (5)
I see what you are saying there, I think. So you are saying even if I go to 3.903 pistons or 3.902 (probe pistons that I can get for $362 (bc the summit has them in stock and will price match ws6store), and in the future the walls need to be cleaned up again It won't be enough material there to clean it up again, so there is no point trying to stay away from max overbore?
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#8
I wish someone made the 3.903 hypereutectic pistons though. Seems like a missed market considering not everyone goes into these for max power in mind.
#9
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iTrader: (5)
I wouldn't stress it at all. Another thing to consider is if by some chance it needs to be built again and your block was ruined, you can always get a 5.3 block. They are cheap and can be bored to an ls1 bore size. You would have to source one used but they just don't cost much. If it were me, I'd just take the 3.908 and go with it.
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POWERBOND - ASP - AND MORE!
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COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
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#10
I wouldn't stress it at all. Another thing to consider is if by some chance it needs to be built again and your block was ruined, you can always get a 5.3 block. They are cheap and can be bored to an ls1 bore size. You would have to source one used but they just don't cost much. If it were me, I'd just take the 3.908 and go with it.