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#1
12-31-2002, 04:01 PM
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L78 lower end
Tearing down my L78, and wondering if a stock '70 L78 engine should have a windage tray attached to the main caps etc, mine didn't. Also, did the factory number (stamp) the rods and caps during assembly (has the original dot rods), or does this indicate a rebuild or teardown.??? Thanks as always folks.
JR Sully
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70 L78 Nova Fathom Blue,Bench, 4spd, F41, 3:55 71 Porsche 911 Targa 
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#2
01-01-2003, 05:58 PM
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Re: L78 lower end
We've never torn down an original L-78, but we have done a couple original L-72s, which are nearly identical. No windage tray but our rods were numbered.
Anyone else agree/disagree?
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#3
01-01-2003, 07:04 PM
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Re: L78 lower end
I have seen the Rods/caps numbered by the factory on both L72 and L78s.
The original CE L72 which I recently sold had a Windage tray and factory studs with a special oil pan. Very similar to a Z28 set up but for a big block.
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Click to visit the Nickey Performance Facebook--> 
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#6
01-01-2003, 10:34 PM
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Re: L78 lower end
Our L72 car didn't come with a windage tray but we added one many years ago. I'm not aware of L78 cars coming from the factory with the trays either. Well worth adding if you have the engine out of the car. Our spare L78 block doesn't have the special windage tray bolts either.
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Chevelleless after 46 years......but we did find a low mileage, six speed, silver 2005 Corvette. It will just have to do for now. 
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#7
01-02-2003, 02:34 PM
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Re: L78 lower end
My 1970 L-78 engined Chevelle did not come from the Factory with a windage tray.I don't believe any did,not even Al.head L-89 optioned engines.
Nice pic shor!
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#9
01-02-2003, 02:46 PM
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Re: L78 lower end
Joe, you are correct on that assumption.
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Rick Nelson Musclecar Restoration and Design, Inc (retired) www.musclecarrestorationanddesign.com https://www.youtube.com/watch?v=62r-6vgk2_8 specialized in (only real) LS6 Chevelle restorations
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#10
01-02-2003, 03:09 PM
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Re: L78 lower end
JoeC & Rick,I agree on that too.
JRSully question was specifically asking about the 1970 L-78 engine,which is why I did not want bring up other engines.
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