T350 Flexplate with a dowel pin - Hot Rod Forum : Hotrodders Bulletin Board
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Old 01-17-2011, 03:09 PM
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T350 Flexplate with a dowel pin

Looking at this 14 1/4"flexplate and the side that faces the rear of the engine block has a dowel pin 1/2" in circumference and on the side that faces the converter is a punched number 42..
What is this dowel thingy for and about what year would this flexplate be from??
Thanks!!

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Old 01-17-2011, 11:21 PM
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I don't know about the 42 but the dowel pin holes is pretty common to locate the flex plate on the crank flange.
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Old 01-18-2011, 02:31 PM
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When did they stop coming out with the dowel pin ??? I have about 12 flexplates and that is the only one that has it.. Reason I am asking is I have a '68 Camaro L35 396 engine and I kinda think that was the flexplate that came offa the engine.. Should've classified the part at the time but, I didn't.
Thanks Johnsongrass!!
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Old 01-18-2011, 03:11 PM
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The dowel that usually resides in the end of the crank might have come out and stayed w/the flexplate when it was removed.
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Old 01-18-2011, 03:14 PM
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Quote:
Originally Posted by cobalt327
The dowel that usually resides in the end of the crank might have come out and stayed w/the flexplate when it was removed.
Seen that happen a time or two.


Cole
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Old 01-18-2011, 04:01 PM
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Took another look at the location of the dowel thingy.. It is on the plate about 1/2 of an inch close to the ring gear.. Can't be a locator for the crank flange way toooo high.. Will see if I can post a pic. either tonight or tomorrow a.m. Never seen one like this. I have a 68 Camaro 396 L35 engine and it is possible it is from that.. Never tagged stuff and I should've..

Anyway red/orange overspray could've gotten onto the flexplate during the GM assembly process??

How are things going Cobalt??

Ted up here in Montreal
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Old 01-18-2011, 04:20 PM
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Pic would be nice.


Cole
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Old 01-18-2011, 04:48 PM
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Quote:
Originally Posted by opelitis5
Took another look at the location of the dowel thingy.. It is on the plate about 1/2 of an inch close to the ring gear.. Can't be a locator for the crank flange way toooo high.. Will see if I can post a pic. either tonight or tomorrow a.m. Never seen one like this. I have a 68 Camaro 396 L35 engine and it is possible it is from that.. Never tagged stuff and I should've..

Anyway red/orange overspray could've gotten onto the flexplate during the GM assembly process??

How are things going Cobalt??

Ted up here in Montreal
Hi Ted. Still got the race car? Did you end up doing anything w/that BBC?

I don't believe I've ever run across a dowel located out near the edge like that. I'll be interested in hearing what it is, myself!

The overspray isn't uncommon. Some BBC engines even had the exhaust manifolds like that, IIRC.
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Old 01-19-2011, 05:33 AM
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Took a couple of shots and I will ask the better half tonight to download the pics..
Still have the Opel and having a hard time putting her up 4 sale.. Other stuff will go before the beast.. Car doesn't weigh much - 1870 lbs wet, so to get down the track in 9.90 class takes 395-400 HP w/ a 'Glide.
Anyways... will post 'em ce soir (tonight).
Ted
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Old 01-19-2011, 07:39 PM
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Here is the dowel thingy near the ring gear.. Looks like a small journal 327 cranks 1962 to 1967 outline on the plate if my eyes don't deceive me..
Take a peek.

Thanks!!
Ted
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Old 01-19-2011, 08:22 PM
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That's not a dowel pin way up there, Hummmm!!!!!!!!!



Cole
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Old 01-20-2011, 01:42 AM
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Balance weight.
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Old 01-20-2011, 10:58 AM
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Looking at the imprint on the flexplate, it is the same shape as a 1962 - 67 small journal 327 crank flange.. Has anyone else seen balance weights like this with other 327 cranks?? What does the coding number 42 mean?
I have 10 - 12 other plates in front of me and this is the only one like with a balancing procedure such as the one pictured above.

Cobalt, I still have the gennie 68 Camaro L35 engine.. Gonna put her in Hemmings in the Spring as a short block in lieu of "long block".
T.
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Old 01-20-2011, 11:30 AM
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Looks like nothing more than a small weight for balancing. I would leave it in place and basically ignore it.

EDIT- I didn't see there was another page to the thread. I'm surprised no one hit on the engine, long block or otherwise.

I guess everyone is looking to build BIG these days... I'll be real surprised if someone doesn't take you up on it, though.

You might try the Classifieds here, they're free.
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Old 01-20-2011, 12:52 PM
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Quote:
Originally Posted by SSedan64
Balance weight.
That's what it looks like to me also.


Cole
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