390 / Thunderbird ?
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From: USA_NY
390 / Thunderbird ?
I found this 75 F100 in a local yard with a mint running "390"...It was spotless and painted...Not the original motor...Had Thunderbird Valve covers and the heads were casting # C1AE 8090A...I know this is 61....But something I hadnt noticed is it has 3 webbed external humps on the front part of the passenger side of the block....Has new headers and fresh cleaned up Old Holley $250....I was thinking of buying the heads but dont remember these humps.....406?
Has a Factory 4 barrell intake
Has a Factory 4 barrell intake
Last edited by F1rocco-NY; Aug 14, 2006 at 06:49 PM. Reason: Details
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Im searchin like crazy...The closest thing Ive found is on E Bay..... Item number: 300016994493 ... Possibly a police interceptor motor.... The webbing is viewable on the passenger side...Well gotta keep searching......
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I blew the picture up as my pc background...I seems to have 2 or three bulges in the block under the cylinder...Passenger front...Ive seen similiar webbing / ribs on other PI blocks on the net...Not saying it is...But my 75 390 doesnt have the same ribs...They are about a 1/4 inch tall ... By 3 inches long by 1.5 ... Not sure why they are there...Im gonna travel tomorrow and get some casting numbers and pics...Dang it I had my camera today and didnt think anything about it...Plus I didnt want to walk back to the car for it...
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This is the 360 block I built my hi-po 390 from:
http://fords.kilonet.org/krewat/imag...-block-001.jpg
Looks almost the same. This is a 1974 or thereabouts 360 block from an F-series, unmolested until I bored it .030" over. I still have to open it up and see if it has webbing inside
http://fords.kilonet.org/krewat/imag...-block-001.jpg
Looks almost the same. This is a 1974 or thereabouts 360 block from an F-series, unmolested until I bored it .030" over. I still have to open it up and see if it has webbing inside
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From: Long Island USA
Originally Posted by F1rocco-NY
Heres a pic I stole of a 428 PI .. The black circle top left are the ribs Im referring to...
Sorry for the pic....I try not to post pics...
Sorry for the pic....I try not to post pics...
Now I have to go back and look at my 390 again ...
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From: USA_NY
Here are some pics of the ribs...\\\
http://www.supermotors.net/vehicles/...y/media/419670
http://www.supermotors.net/vehicles/...y/media/419673
http://www.supermotors.net/vehicles/...y/media/419671
http://www.supermotors.net/vehicles/...y/media/419680
http://www.supermotors.net/vehicles/...y/media/419679
I took a pic of under the oil filter for casting #s...Urggghhh...It didnt come out....
http://www.supermotors.net/vehicles/...y/media/419670
http://www.supermotors.net/vehicles/...y/media/419673
http://www.supermotors.net/vehicles/...y/media/419671
http://www.supermotors.net/vehicles/...y/media/419680
http://www.supermotors.net/vehicles/...y/media/419679
I took a pic of under the oil filter for casting #s...Urggghhh...It didnt come out....
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From: USA_NY
I was thinking it could be that....But someone put C1AE 6090A heads on it so I was hoping the block might be something special....The intake looks to be a C9...So they must have put better bolt ons on their 361CI....Should I at least buy these heads...I have 2 set of of 406 56cc and 62cc heads already....
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I'm wondering if that's something that's been altered.
Well, I'm no longer wondering, I KNOW it's been altered.
By the time there was a C9 intake, the C8 heads were out for a year. While strange things happen, I think it's outside the realm of possibility that Ford would put C1 heads on a 69 or later motor.
You'd have to take it apart to see if there's anything worth anything in it. Check the stroke with the wire/dowel method. That'll tell us something fer sure. Easy to tell if it's a 360, 390 or 410/428 that way.
Well, I'm no longer wondering, I KNOW it's been altered.
By the time there was a C9 intake, the C8 heads were out for a year. While strange things happen, I think it's outside the realm of possibility that Ford would put C1 heads on a 69 or later motor.
You'd have to take it apart to see if there's anything worth anything in it. Check the stroke with the wire/dowel method. That'll tell us something fer sure. Easy to tell if it's a 360, 390 or 410/428 that way.
