390 rebuild
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New User
Joined: Nov 2010
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From: Fort dodge iowa
390 rebuild
i just bought a truck with a 390 thats been sittin for a few yrs. I want to know what the best way to build this motor without breaking the bank. the engine will be going in my 76 f100. with a c6 behind it. im not looking for serious power, just want something that can pull a car trailer, camper, etc. thanks in advance
Posting Guru
Joined: Dec 2010
Posts: 1,240
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From: Chino Hills
I would go with with a basic rebuild with 9-1 compression. The long stroke keeps the torque going, and I would save my money for a good street cam. Do not get a generic RV cam.
Heres a cam that would do well for performance/economy.
COMP Cams 33-226-4 - COMP Cams Magnum Hydraulic Camshafts - Overview - SummitRacing.com
Add headers and a dual 2 1/4 inch exhaust.
Edelbrock manifold, and a tuned 650 cfm vac secondary.
MSD type ignition set-up
This would be a hot motor for towing and shouldn't kill your wallet. Plus it should get good economy.
Heres a cam that would do well for performance/economy.
COMP Cams 33-226-4 - COMP Cams Magnum Hydraulic Camshafts - Overview - SummitRacing.com
Add headers and a dual 2 1/4 inch exhaust.
Edelbrock manifold, and a tuned 650 cfm vac secondary.
MSD type ignition set-up
This would be a hot motor for towing and shouldn't kill your wallet. Plus it should get good economy.
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
abreiholz, Be prepared for your engine to be a 360 instead of a 390. Seems all FEs become 390s on sale day. There were a few 390s installed in trucks from the factory but a darn few. That's not to say a 390 has not been swapped in in the last 40 years either.
You don't have to spend much money on a 390 build to make a puller. They came out of the box that way.
John
You don't have to spend much money on a 390 build to make a puller. They came out of the box that way.
John
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New User
Joined: Nov 2010
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From: Fort dodge iowa
im sure its a 390. the previous owner was my grandpa and he put the 390 in there 20 yrs ago. Im kinda just looking to freshen the motor, and while it apart i figured a cam could help out etc.
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
I'm not much on going into 20 year old engines, but the engine builders may give you a pass.
A Petronix electronic ign. maybe dual exhaust if you don't have it is about all I would recommend without a complete rebuild.
John
A Petronix electronic ign. maybe dual exhaust if you don't have it is about all I would recommend without a complete rebuild.
John
More Turbo
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From: Western Washington
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