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Help - starting 427 for first time

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Old Oct 12, 2008 | 11:13 PM
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Default Help - starting 427 for first time

The newly rebuilt 427 is sitting in the chassis with the body off and i'm almost ready to put in fluids and break it in. I want to break it in with the body off to make sure everything is OK before dropping the body.

Are there any good old posts or tech papers describing the procedure, including how to wire it up and what type of switch to use? Also, how to vary rpm's and how long? thanks
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Old Oct 12, 2008 | 11:23 PM
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Assuming you have hooked up some gauges- oil pressure, water temp, tach, you'll need a good push button switch for the starter and a good toggle for the ignition. At least 10ga wire for the start solenoid and 14-16 gauge for the ignition.

As far as the start itself- 1st thing after you get it running is make sure it's full of water or coolant- look for any leaks and set the timing. Best way IMHO is get the timing close enough it'll run, start it, do a quick leak check and water level check and run it up to 2000 to break in the cam. I vary the speed around 2k- 1500 to just over 2000- IF you have a new flat tappet cam- old cam and lifters don't need any break in. Follow the cam maker's suggestions on break in.
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Old Oct 13, 2008 | 12:04 AM
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Don't forget the G.M. Engine oil suppliment.....Just to be sure.
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Old Oct 13, 2008 | 12:58 AM
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I think you should contact MrGoFaster for direction on first start-up!!!
MrGoFaster, I'm just pokin fun, we've all been where you are for 1 thing or another.
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Old Oct 13, 2008 | 10:24 AM
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Originally Posted by BigBlockTank
I think you should contact MrGoFaster for direction on first start-up!!!
MrGoFaster, I'm just pokin fun, we've all been where you are for 1 thing or another.
COLD Tank...COLD!!!
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Old Oct 19, 2008 | 01:00 PM
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Originally Posted by sly vette
Don't forget the G.M. Engine oil suppliment.....Just to be sure.
Can you tell me more about this oil supplement? I havnt heard of this before - thanks
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Old Oct 19, 2008 | 01:08 PM
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Ask for it at any G.M dealer.........EOS Engine Oil Supplement.
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Old Oct 19, 2008 | 01:30 PM
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there is also the comp cam break in lube
or the zddp plus additive
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