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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Apr 2000 Posts: 499 'Bolter | | 'Bolter Joined: Apr 2000 Posts: 499 | My book says the 348675 # is for '66-'79 250. The HEI is the external coil type used in '75-76.
The hole on the top-front of the valve cover is the oil fill hole. The one on the side should have a large tube that goes up to the air cleaner. This is the fresh air inlet for the PCV system. The PCV valve is already in place at the rear of the valve cover with the vacuum hooked up to it.
'67 GMC 3/4 292 4spd
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Entire Thread
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I6 guru's, can you help me ID this engine please
| Gravel | 02/03/2009 12:05 AM | |
Re: I6 guru's, can you help me ID this engine please
| BIG CHEVY 3600 | 02/03/2009 1:18 AM | |
Re: I6 guru's, can you help me ID this engine please
| Hotrod Lincoln | 02/03/2009 2:07 AM | |
Re: I6 guru's, can you help me ID this engine please
| Gravel | 02/03/2009 2:15 AM | |
Re: I6 guru's, can you help me ID this engine please
| 66stepside | 02/03/2009 2:45 AM | |
Re: I6 guru's, can you help me ID this engine please
| 48bigtrucks | 02/03/2009 3:45 AM | |
Re: I6 guru's, can you help me ID this engine please
| Richard | 02/03/2009 4:20 AM | |
Re: I6 guru's, can you help me ID this engine please
| Gravel | 02/03/2009 5:23 AM | |
Re: I6 guru's, can you help me ID this engine please
| chuckthetruck | 02/03/2009 12:36 PM | |
Re: I6 guru's, can you help me ID this engine please
| Gravel | 02/05/2009 1:31 AM | |
Re: I6 guru's, can you help me ID this engine please
| Joe H | 02/05/2009 3:57 AM | |
Re: I6 guru's, can you help me ID this engine please
| Gravel | 02/05/2009 4:31 AM | |
Re: I6 guru's, can you help me ID this engine please
| Oilrag | 02/06/2009 12:31 AM | |
Re: I6 guru's, can you help me ID this engine please
| Gravel | 02/06/2009 1:13 AM | |
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