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Old 07-03-2013, 02:22 PM
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Break-in

What is the best way to break in my sbc 350/330 horse crate motor?

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Old 07-03-2013, 02:45 PM
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Is it the 330 HP crate from GMPP ?
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Old 07-03-2013, 02:49 PM
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Is it the 330 HP crate from GMPP ?
Yes it is.
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Old 07-03-2013, 02:52 PM
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You may get 5 different answers from 5 different ppl & all 5 will most likely be good answers,but,in the end,if it is the GMPP engine & end up having problems with the engine,it would be wise to follow & document GM's instructions as close as possible,or,face warranty issues.JMHO.
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Old 07-03-2013, 02:55 PM
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Use conventional 5W-30 all season oil with GM EOS.
Drive 50 miles and vary the engine speed between 1500 and 3000 RPM.
Change oii and filter add a bottle of EOS.
Drive 500 miles and vary the engine speed between 1500 and 3000 RPM. .
Change the oil and filter using 5W-30 all season conventional oil.
Drive 1,500 miles and you can change to all synthetic 5W-30 oil if you wish.
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Old 07-03-2013, 03:04 PM
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I have been following a thread on here about a ZZ383 & high oil consumption.Read thru this thread & you'll see what I mean.I can't recall the thread title offhand,but,it should be easy to find.Installation & break in are 2 of GM's scapegoats for warranty issues & likely the 2 of the 1st questions you be question on if there are issues.
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Old 07-03-2013, 03:06 PM
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Thanks for the answers. The only thing is, I want to run the engine and the car is not driveable. That is, it is still in the building process. Long way from being done. As I have said it other posts, on this forum, this is my first project build like this and I have a lot of questions. Also, another stupid question. I mocked bolted my 700R4 trannie to the engine, in order to fabricate a transmission mount. I do not have a torque converter installed. Can I still start the engine without a converter?
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Old 07-03-2013, 03:16 PM
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Originally Posted by V8Square View Post
Thanks for the answers. The only thing is, I want to run the engine and the car is not driveable. That is, it is still in the building process. Long way from being done. As I have said it other posts, on this forum, this is my first project build like this and I have a lot of questions. Also, another stupid question. I mocked bolted my 700R4 trannie to the engine, in order to fabricate a transmission mount. I do not have a torque converter installed. Can I still start the engine without a converter?
I think I would remove the trans before starting.Just to be safe.
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Old 07-03-2013, 03:22 PM
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I think I would remove the trans before starting.Just to be safe.
So, what kind of a problem would it be starting the engine with the trans attached? Also, if I remove the trans, what would you recommend for supporting the engine besides the engine mounts? Thanks for all the info.
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Old 07-03-2013, 04:53 PM
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No problem leaving the trans attached for break-in, the bell housing is just an empty shell. I wouldn't give it any hard revs causing it to torque over hard.
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Old 07-03-2013, 05:18 PM
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It prolly would be ok.I wuz just thinkin that not bein connected thru the converter that instead of the trans & motor torqueing together that the engine would kinda be torqueing against the trans & bellhousing with the rear mount attatched.I can overthink sometimes tho.LOL.
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Old 07-03-2013, 07:07 PM
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hope the warranty doesnt expire before you drive the car.
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Old 07-04-2013, 07:15 AM
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hope the warranty doesnt expire before you drive the car.
Oh, that has already expired.
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Old 07-04-2013, 07:30 AM
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Oh, that has already expired.
OOPSY !!! Too bad they don't let it start the day you get it cranked !!!
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Old 07-04-2013, 10:33 AM
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Cam break in

Adjusting hydraulic lifters

One of the most important things about getting the most from your engine is setting up the ignition timing correctly.
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