390 cam timing
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If it's a low-compression truck motor, you might wake it, but it will still be drowsy...
FE's usually get enough in, it's the out that's the problem. Got headers?
And the usual question--are you sure it's a 390? Check that stroke.
Good luck with it. There is a monster inside there, you may just need a little more fiddling.
FE's usually get enough in, it's the out that's the problem. Got headers?
And the usual question--are you sure it's a 390? Check that stroke.
Good luck with it. There is a monster inside there, you may just need a little more fiddling.
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New User
Joined: Dec 2009
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From: Alaska
no headers, does it make that big of a difference? i cant say for certain its a 390 i know it came with a 360 but the guy i bought it from said a rebuilt 390 was put in a few years back.
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Headers make a big difference in power output. Any FE performance build requires them.
If you really just want a low-rev puller, they aren't that critical, but you should do the dual exhaust, crossover pipe etc or equivalent larger pipe to eliminate as much restriction in the exhaust as possible.
If you really just want a low-rev puller, they aren't that critical, but you should do the dual exhaust, crossover pipe etc or equivalent larger pipe to eliminate as much restriction in the exhaust as possible.
Post Fiend
Joined: Apr 2008
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From: Big Sky Country
As sure as the sun will rise tomorrow all 360's magically become 390's on sales day, you have to measure the stroke.
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New User
Joined: Dec 2009
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From: Alaska
it already has a dual exhaust on it but each side is isolated, does the h-pipe make that much difference? ill measure the stroke best i can through one of the plug holes today.
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Tuned
Joined: Jul 2003
Posts: 374
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From: Dudley, GA
Hey! Mine started out life as a lowly 360, but it has magically become a 390 and it ain't for sale!
Crossover pipes are highly recommended.
Crossover pipes are highly recommended.
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