Installing Headers on an FE
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Freshman User
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Installing Headers on an FE
Hey, I just rebuilt a FE motor that I was "told" is a 390. I'm not 100% sure and haven't gotten a chance to figure it out yet, let alone know how to. My question is it is still outside of the truck, has anyone ever had trouble putting on headers whether they be shorties or long tube and what kind of trouble I might run into with certain brands? I'm looking towards BBK or Hooker. Thanks for your help
Cargo Master
Joined: Dec 2008
Posts: 3,211
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From: SW PA
Hey, I just rebuilt a FE motor that I was "told" is a 390. I'm not 100% sure and haven't gotten a chance to figure it out yet, let alone know how to. My question is it is still outside of the truck, has anyone ever had trouble putting on headers whether they be shorties or long tube and what kind of trouble I might run into with certain brands? I'm looking towards BBK or Hooker. Thanks for your help
You rebuilt the engine but don't know what size it was? Yikes!
I have had good luck with the hookers in that configuration. Pretty thick flanges and thicker (wall) primary tubes.
Banned
Joined: Jan 2003
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From: Grande Prairie, AB
I was thinking same thing, how did you rebuild not knowing??
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I apologize for that mishap as well, I am still new to engines and terminology and often step on my own tongue a fair amount. Still very very ignorant. The proper term I should have used was bought and maintenanced little things as far as fuel pump, rear main swap, sump pump, etc. As far as my questions and threads I post, I will still probably sound like I don't know what I'm talking about for some time to come because I really don't know much yet. This forum really helps me learn. But I bought it with the guy telling me that it was a 390, but when I went to buy a new clutch kit, it called for a 12-inch clutch and the one on it was an 11-inch clutch with a 1.8" pilot bearing, which is where my confusion is with the motor. The exhaust on the truck is nonexistent and I would be running it off the manifold when I get it put in, and there is my question about that body style and its front end set up if I would have certain troubles as far as trying to use a long tube header vs. a short tube header. Any help is greatly appreciate
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Postmaster
Joined: Jan 2013
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From: Panama City
Lots of 360's turn into 390's when it comes time to sell them. As far as I know the only way to tell is to measure the stroke.
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Would I need to disassemble the motor to find that out? Or is there another way?
Posting Guru
Joined: Aug 2010
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From: Knoxville, TN
No joke!
If you still had it torn down, I'd say just measure the bore and stroke - it's easy to calculate displacement volume from there. If you still have your old pistons, you could measure their diameter for bore. To measure the stroke, if the engine's already assembled, the easiest thing to do would be to pull the oil pan and do it from that side.
How did you ensure you had the right parts without knowing what engine you were rebuilding?
If you still had it torn down, I'd say just measure the bore and stroke - it's easy to calculate displacement volume from there. If you still have your old pistons, you could measure their diameter for bore. To measure the stroke, if the engine's already assembled, the easiest thing to do would be to pull the oil pan and do it from that side.
How did you ensure you had the right parts without knowing what engine you were rebuilding?
Fleet Owner
Joined: Dec 2009
Posts: 20,678
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From: NorCal
No joke!
If you still had it torn down, I'd say just measure the bore and stroke - it's easy to calculate displacement volume from there. If you still have your old pistons, you could measure their diameter for bore. To measure the stroke, if the engine's already assembled, the easiest thing to do would be to pull the oil pan and do it from that side.
How did you ensure you had the right parts without knowing what engine you were rebuilding?
If you still had it torn down, I'd say just measure the bore and stroke - it's easy to calculate displacement volume from there. If you still have your old pistons, you could measure their diameter for bore. To measure the stroke, if the engine's already assembled, the easiest thing to do would be to pull the oil pan and do it from that side.
How did you ensure you had the right parts without knowing what engine you were rebuilding?
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Freshman User
Joined: Feb 2015
Posts: 25
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No joke!
If you still had it torn down, I'd say just measure the bore and stroke - it's easy to calculate displacement volume from there. If you still have your old pistons, you could measure their diameter for bore. To measure the stroke, if the engine's already assembled, the easiest thing to do would be to pull the oil pan and do it from that side.
How did you ensure you had the right parts without knowing what engine you were rebuilding?
If you still had it torn down, I'd say just measure the bore and stroke - it's easy to calculate displacement volume from there. If you still have your old pistons, you could measure their diameter for bore. To measure the stroke, if the engine's already assembled, the easiest thing to do would be to pull the oil pan and do it from that side.
How did you ensure you had the right parts without knowing what engine you were rebuilding?
Last edited by BigBoy73; Feb 22, 2015 at 04:59 PM. Reason: Missing info