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  #1  
Old 01-10-2006, 07:43 PM
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Donnie Donnie is offline
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Default would like some opinions on the motor

my question is you have an original number matching 70 SS 396 Chevelle and you like to drive it about 500 to 1000 miles a year (dont get into watching it collect dust)
due you leave the number matching motor in and drive it and worry about possibly hurting something. (like to smoke um every now and again)

Or put a 454 crate motor in dress it up so it looks original and have fun and not worry.
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Old 01-10-2006, 08:28 PM
TDW TDW is offline
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Default Re: would like some opinions on the motor

Has the engine ever been out of the car? If not, I would leave it. If it has been apart before, it shouldn't hurt anything to put what you want in it.
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Old 01-10-2006, 08:48 PM
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Default Re: would like some opinions on the motor

Judging from your pictures you HAVE had the motor out for a body off resto. Did you do the work? Looks real nice. If you have a history and confidence in the motor, i.e.its been gone thru and you have a reliable tachometer or you let the auto tranny do its thing when you "smoke um every now and again", you shld be able to minimize any threats to your original motor. These were relatively hi po motors and built to take some abuse. If you routinely thrash your car, you may want to consider an engine swap - be advised the rest of the drivetrain is at risk too. Saw you installed chambered exhaust on your '70 and have a posting of the April '69 Chev. bulletin regarding changes to the NC8. Is that an original bulletin?

Enjoy and Good Luck!
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Old 01-10-2006, 08:51 PM
mhs mhs is offline
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Default Re: would like some opinions on the motor

is their any body that can help me figure out if my 70 nova is a yanko or not by the vin.
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Old 01-10-2006, 08:55 PM
sYc sYc is offline
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Default Re: would like some opinions on the motor

[ QUOTE ]
is their any body that can help me figure out if my 70 nova is a yanko or not by the vin.

[/ QUOTE ]

You may check for yourself here.

https://www.yenko.net/ubbthreads/show...0/page/0#75999
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Old 01-10-2006, 10:02 PM
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Default Re: would like some opinions on the motor

Tony,
When I bought the car 6yrs. ago the original motor was already out but came with the car.
had a 502 in it that i just sold (got tired of the elec. fuel pump)
Now im trying to make up my mind on which motor to put in.

Sam,
Yes, I did the work, but the paint wasnt touched its a 19yr. old paint job thanks.
the bulletin is an original and the chambered system has been taken off. currently has a Flowmaster system on for a manifold car.
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Old 01-11-2006, 11:16 PM
COPO427 COPO427 is offline
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Default Re: would like some opinions on the motor

If you have an orig numbers matching engine/car then put that baby away and drop in another 396 or 454 and hammer away.
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Old 01-11-2006, 11:28 PM
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Default Re: would like some opinions on the motor

Since the motor has been out before, rebuild it and drop her back in. You likely won't hurt it with what you are planning to do with the car and lets face it, with the sophistication of restamps now, many don't believe that any motor that has been touched is the guaranteed original. I've looked at tons of original stampings and have always valued original motor cars significantly more than non-OM cars...until this past weekend when a guy I know showed me his newly restamped/broached motor It was darn good and I bet many experienced gearheads would think that it was the original stamping! I'm starting to value paperwork more than motors now on restored cars
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Old 01-12-2006, 12:55 AM
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Default Re: would like some opinions on the motor

I know many of the guys who Participate in the Pure Stock Drags ahve replaced their numbers blocks with other engines that can withstand the abuse while preserving the cars history. If you are only driving 500-100 miles per year and just want to "mash some carpet" on occasion stick with the original. I do that at least 6 times year with my 442. Let the tranny do the shifting (Automatics of course)and for your own satisfaction install a set of good mechanical oil and temp guages.

Paul Martin
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Old 01-12-2006, 12:58 AM
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Default Re: would like some opinions on the motor

On second look at your photos I see you have the guages-move that floor mat out of the way and let her rip!!
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