Rpm's?????????
Post Fiend
Joined: Jan 2003
Posts: 8,600
Likes: 4
From: Iowa
Without blowing it up, you could probably go up to 5000rpm. I'd keep it below 4500rpm though, as anything more is wasting your time. If it's got the stock 2 barrel and stock exhaust manifolds on it though, anything over 3500rpm is probably wasting your time.
Post Fiend
Joined: Mar 2004
Posts: 6,056
Likes: 8
From: Union, Washington
Originally Posted by LedheadELH
well a 360 shouold rev higher, it's got the shorter stroke. it's just isn't built from the factory like the 390 is! JMO
Fleet Mechanic
Joined: Jul 1999
Posts: 1,360
Likes: 1
From: Iowa
Originally Posted by Bear 45/70
A 360 isn't a 390.
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Fleet Mechanic
Joined: Jul 1999
Posts: 1,360
Likes: 1
From: Iowa
Originally Posted by RangerTuff05
What rpm should i be shifting my 360 FE at. I just put a tach in the truck and i was shifting it around 2400 but i didn't know how much higher i could push it.
When my truck had it's original 360 and a four speed, I shifted it at a higher rpm when it had a load on it, than when it didn't. I normaly shifted at around 1,500 rpm.
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Post Fiend
Joined: Mar 2004
Posts: 6,056
Likes: 8
From: Union, Washington
Originally Posted by 390fe
Perhaps I should clarify my original post. You can shift whenever you please. 2,400 rpm is ok, 1,500 is ok, whatever you want. I don't know why you'd need to shift at a higher rpm.
When my truck had it's original 360 and a four speed, I shifted it at a higher rpm when it had a load on it, than when it didn't. I normaly shifted at around 1,500 rpm.
When my truck had it's original 360 and a four speed, I shifted it at a higher rpm when it had a load on it, than when it didn't. I normaly shifted at around 1,500 rpm.
Post Fiend
Joined: Mar 2004
Posts: 6,056
Likes: 8
From: Union, Washington
The 360 was never what anyone would call a "Power House". They won't rev very high and were only rated at 215 hp @ 4400 and torque is 327 ft/lbs @ 2400. That 215 was without the truck's exhaust. tranny or any accessories. It's never a bad idea to shift at or just past peak torque.
More Turbo
Joined: Nov 2004
Posts: 590
Likes: 1
From: in the woods of Maine!
yea, but I bet if they got some more compression ratio they would run much better. basically identical to a 390, just not a stroker I guess you'd say, and w/ less compression......I dunno, they run forever though, even w/ no oil...lol.....Damn near bullit proof in stock form.
Post Fiend
Joined: Mar 2004
Posts: 6,056
Likes: 8
From: Union, Washington
The truck 390 wasn't a power house either. Try 255 hp @ 4400 and 376 ft/lbs @ 2600 for the truck 390. Now the car motors, at least the 4 barrel one, we a totally different matter. Then again the was the 10.5 to 1 copressioned 2 barrel motor.