LS1 rebuild
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Teching In
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LS1 rebuild I have a 99 ls1 motor with a spun rod bearing. It sucks, but life happens.
I am going to have the stock crank turned to fix what got messed up.
I was going to do a cam, when I put it back together. I have a few questions about what else I should change.
I would like to bump the compression, is their enough room to mill the heads on the factory motor?
I am going to have the stock crank turned to fix what got messed up.
I was going to do a cam, when I put it back together. I have a few questions about what else I should change.
I would like to bump the compression, is their enough room to mill the heads on the factory motor?
If the heads are in good shape they can be milled. I'd do a forged setup at this point if it were me. The same thing happened to me 2 years ago. Spun a bearing and only the block and heads were good. It wasn't much more expensive for me to sell my block and buy a 6.0 iron block, which is what I did
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The problem is I have never driven the m3 so I do not know if I would like platform too much. I really want to do a lq9 with l92 heads and call it a day, but Im worried about throwing a bunch of money into a car I might not like
I have a 99 ls1 motor with a spun rod bearing. It sucks, but life happens.
I am going to have the stock crank turned to fix what got messed up.
I was going to do a cam, when I put it back together. I have a few questions about what else I should change.
I would like to bump the compression, is their enough room to mill the heads on the factory motor?
I am going to have the stock crank turned to fix what got messed up.
I was going to do a cam, when I put it back together. I have a few questions about what else I should change.
I would like to bump the compression, is their enough room to mill the heads on the factory motor?
As long as the crank will clean up and the block checks out ok.
A rod and piston upgrade would be the way to go since you are looking for a little more compression it is the time to attack it now.
The heads can be milled a little depending on what cam you are going with and what piston gets used.
How many miles were on the old combo?
Are the heads in good shape?
Good opportunity to get those done as well. (at a min. have them lapped and fresh seals installed, your going to be installing new springs for that camshaft you want anyways)
Since this engine spun a bearing we would recommend changing all components that flow oil.
-oil pump
-lifters
-rockers
-pump pick up
Until you get the block cleaned up you can't shop for pistons.
best plan would be to
-get a good balanced rotator (minimal cost difference between your turned crank and an aftermarket base part)
-quality machine work
-get the heads run through at a min. or ported
-select a valve train (cam rockers timing set)
-have a builder assemble.
We can sell you parts and services to do it yourself or we can knock out the process for you.
Thread Starter
Teching In
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Livernoius,
Thanks for the options. Right now I have located a ls1 truck crank with a 24 wheel and is stock, I am going to buy a rebuild kit and put the motor back together. I am not sure if I like the m3 platform, so going to just get it running. If I like the car then I will do a big build and see about building a 500hp motor.
Thanks for the options. Right now I have located a ls1 truck crank with a 24 wheel and is stock, I am going to buy a rebuild kit and put the motor back together. I am not sure if I like the m3 platform, so going to just get it running. If I like the car then I will do a big build and see about building a 500hp motor.
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Thread Starter
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Well I picked up my new/used ls1 crank, just need to clean it up a tad. I got the crank out and the bearings were shot. I was hoping to get away and reusing the cam bearings, and all the cam bearings were pitted, so that did not go as planned. I am dropping off the motor at the machine shop and will have it tanked and new cam bearings installed.
I will be ordering a cam, and then putting the motor back together. I have some new rods in route. I just need to order my engine rebuild kit, and clean out the SLP oil pump. This motor rebuild is the least of my worries on this build, the wiring harness is so hacked in the bmw that is what I am fearful of jumping into, it is also the only thing I have never messed with on any of my projects.
I will be ordering a cam, and then putting the motor back together. I have some new rods in route. I just need to order my engine rebuild kit, and clean out the SLP oil pump. This motor rebuild is the least of my worries on this build, the wiring harness is so hacked in the bmw that is what I am fearful of jumping into, it is also the only thing I have never messed with on any of my projects.
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