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Old 03-07-2011, 09:56 PM   #1
treefrog340
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Engine size?

I have a 79 GMC truck with a Straight Six.
The engine was replaced prior to my purchase.
Some parts fit for 250some for other size 6's.
can anyone tell me what size and year engine I have?

The stamp pad has the following numbers:

F0913PP
and
F13621

James
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Old 03-07-2011, 10:09 PM   #2
SeanPaintsFlames
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Re: Engine size?

Unless the deck height is noticeably taller and you have a 292, it's most likely the standard 250 L6.

Here's a 292. Notice the distance between the bottom of the thermostat housing and the fan pulley. If you have a 250, this distance is almost nothing.



A 250:


What parts are you shopping for?
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Old 03-08-2011, 10:21 AM   #3
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Re: Engine size?

Thanks a million!
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Old 03-08-2011, 11:05 AM   #4
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Re: Engine size?

can you tell what year?
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