69 mongrel

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Jan 5, 2008 | 03:03 PM

Mike in Ohio

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Joined: Dec 2007

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69 mongrel

Hello guys, I'm new here. I just got a truck to play with acouple of weeks ago. The title and the door tag say it is a '69 f100, the 8 lug axles and the huge brakes say it's a f250. To top it off it has a 460 in it with I think a c6 (been too cold and wet to go out and crawl underneath to get numbers). So it is a mongrel but so far I love it.Now for the down side, it shows almost no oil pressure at idle when it warm. When going down the road it stays at about the center of the O in the word oil on the guage.It seems to run good and have plenty of power but I'm guessing it needs rebuilt. In the meantime I found '71 390 in the local paper, will this bolt right in or is the bellhousing and or mounts different? Or should I just run it like it is till it starts making funny noises? Thanks alot and I'll probably be bugging you guys alot. Mike

Last edited by Mike in Ohio; Jan 5, 2008 at 03:13 PM.

Jan 5, 2008 | 03:31 PM

gnwalker

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Joined: Apr 2004

Posts: 630

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From: Hedgesville WV

The 390 wouldnt be a direct bolt in. As long as the oil pressure is in the normal range on the gauge I wouldnt worry about it if you're happy with the way it runs. Just make sure the oil is topped off and ride it out

Last edited by gnwalker; Jan 5, 2008 at 03:36 PM.

Jan 6, 2008 | 06:51 AM

jowilker

Fleet Owner

Joined: Jun 1999

Posts: 24,552

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From: Creedmoor, North Carolina

Sorry gnwalker, but the 390 will not bolt in without tranny and engine perches being changed also. Two completely different engine families.

I do agree that I wouldn't worry too much just yet, as long as it isn't loosing oil by the bucket or knocking real bad, I would drive on and enjoy the big gas loving power house. IMHO

John