391 performance options
Needsmorecoffee.
Joined: Oct 2004
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From: CT
Well it sounds like it could be a few different things. Have you measured the outer diameter of the crank snout? That would be very helpfull and would tell you and us if it's a FE or FT crank. That in turn will help figure out what pistons are there. It sounds like they are std flat tops with valve reliefs. Also the heads I'll guess are FE heads by the sounds of them. It's sounds like a 360/390 based on a FT block. Could be a rebuild of some sort possibly. Have you checked the crank stroke? I've read through this a few times and have not seen those specs listed. And nothing wrong with asking questions. That's how we all learn.
G.
G.
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Oh ya, winr, could you please measure the shaft snout diameter, maybe on the very end and where the cam gear goes? I also remeasured my camshaft distributor gear with a caliper and found out that is is exactly the same size as my 390 camshaft dis. gear. I thought it was larger before but I was mistaken. (I have the orig. cam out of my 390 but my orig. timing gears got thrown out) The stroke I measured was around the 3.78 area. I will meaure the diameter of my snout and post it up later.
Last edited by ford390fe; Jul 5, 2007 at 06:10 PM.
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Hey guys, I measured the diameter of the snout and I got 1.38" so it is a 390. Thanks for all of the help. I would be lost with out you guys. If anyone has any closing comments or anything feel free to say. Now I'm going to search ebay and find some goodies for it.
Fleet Owner
Joined: Jan 2004
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From: Brentwood,CA
Originally Posted by ford390fe
Hey guys, I measured the diameter of the snout and I got 1.38" so it is a 390. Thanks for all of the help. I would be lost with out you guys. If anyone has any closing comments or anything feel free to say. Now I'm going to search ebay and find some goodies for it.
If it has 1.38 and has the cast iron timing cover with front mount something is wrong. The cast iron covers only fit the larger cranks with one big exception! The 330FT with the small snout. Whats the casting numbers on the crank.
Needsmorecoffee.
Joined: Oct 2004
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From: CT
Originally Posted by ford390gashog
If it has 1.38 and has the cast iron timing cover with front mount something is wrong. The cast iron covers only fit the larger cranks with one big exception! The 330FT with the small snout. Whats the casting numbers on the crank.
G.
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From: Long Island USA
So if you got one of these 330FT covers, you could bolt an FE into a heavy-duty truck where an FT was and have the motor mounts match?
I remember my brother putting an HD 429 into his '68 F600 - had a real picnic on that one
I remember my brother putting an HD 429 into his '68 F600 - had a real picnic on that one
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I measured the bore and stroke about ten times and they are right on the 4.05/3.78 mark. Gashog, the seal on the timing cover was replaced. Could it be that the outside diameters of both a 361/391 and an fe shaft seal would be the same but have different inside dia. to compensate for the size difference?
Hotshot
Joined: May 2003
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From: south louisiana
Originally Posted by ford390gashog
If it has 1.38 and has the cast iron timing cover with front mount something is wrong. The cast iron covers only fit the larger cranks with one big exception! The 330FT with the small snout. Whats the casting numbers on the crank.
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Originally Posted by baddad457
Yep, the 330, 359,389's used FE s. Last 330 I pulled apart came out of a 78 F600 with one. Everything was FT 'cept for the .
Hotshot
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From: south louisiana
You can have FE heads on an FT short block, only thing different is the distributor hole, from what I've read. The blocks are the same for both, so the heads are interchangeable as long as you use the matching intake and exhaust manifolds. The 359 was simply an FT shortblock that had a cast 352/360 crank in place of the stell unit. Ditto for the 389. The different CID designation was only to differentiate them from the 360/390 and 361/391.