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Old 04-19-2010, 11:42 AM
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Need Help With A Problem Gen V Big Block Chevy

2 More Problems
(bought This Engine "ready To Run")

Went To The Dyno. Problem #1

Engine Vibrates...bad
It Is A 509, It Has An Externally Balanced Tci Flex Plate
And A Bds Counter Weighted Crank Hub

My Question Is:when I Disassemble This Should I Have It Balanced Externally And Keep The Flex Plate And Ctw Drive Hub Or Should I Have It Internally Balanced And Go With A Balance Neutral Drive Hub And Flex Plate?


Problem #2

We Got 1/2 Way Through A Pull And Coolant Began Shooting Out Of My Valve Cover Breathers.
Question: This Is A Gen V Block And It Has Edelbrock 24 Degree Aluim. Cyl. Heads. Does This Tak A Special Gasket?

Thanks In Advance.
Geo.
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Old 04-19-2010, 12:12 PM
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Quote:
Originally Posted by ANGIE1948
My Question Is:when I Disassemble This Should I Have It Balanced Externally And Keep The Flex Plate And Ctw Drive Hub Or Should I Have It Internally Balanced And Go With A Balance Neutral Drive Hub And Flex Plate?
Unless this is destined to see high RPM, there's nothing wrong w/an external balance, using the existing damper and flexplate- as long as these parts are correct for the BBC 1-piece rear main seal crank.

Your rotator might not have been dynamically balanced (spin balanced), it could have been statically balanced (piston/pins weight matched, rod small and big ends and total weight equalized)- this is a necessary step in obtaining a good balance, but isn't a truly "balanced" reciprocating assembly until the bob weight is calculated and the assemble spun.

Quote:
We Got 1/2 Way Through A Pull And Coolant Began Shooting Out Of My Valve Cover Breathers.
Question: This Is A Gen V Block And It Has Edelbrock 24 Degree Aluim. Cyl. Heads. Does This Tak A Special Gasket?
I keep hearing that there's a gasket that allows a Mark IV head to be used on a GEN V engine- but when asked, no one has a part number- so far.

I have tried to find the answer to this w/o ANY luck here, other forums/internet and Summit tech line for a half hour while the guy looked through catalogs and asked his compadres.

Good luck.
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Old 04-19-2010, 04:51 PM
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Fel-Pro gasket 8180 PT-2 will work so will Cometic C-5333040.
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