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

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.
http://www.hotrodders.com/gallery/da...INLINE_SIX.jpg


A 250:
http://turboninjas.com/gallery/d/22091-2/van+005.jpg

What parts are you shopping for?

Re: Engine size?
 

Thanks a million!

Re: Engine size?
 

can you tell what year?