351M 4 Barrel and Headers
Thread Starter
|
Senior User
Joined: Nov 2003
Posts: 127
Likes: 2
From: Chilliwack
351M 4 Barrel and Headers
Hi everyone, I recently got my 351M tuned right up, it has little to no oil pressure on the factory gauge (installing manual gauge shortly) but runs great with no ticking or knocking. How much will the engine benefit from a Weiand stealth intake manifold, Holley 600cfm carb, Hooker headers and a single 3" exhaust. Is it worth it or should I stick with the two barrel and stock exhaust manifolds. Just would like some opinions. Thanks.
Post Fiend
Joined: Mar 2005
Posts: 8,542
Likes: 5
From: Louisiana
I think these up grades would be worth it, to unlesh some hidden performance.(consider dual exahaust, for better free flowing exahaust).
I'm going to tune up my 400,(it was a new block 70k ago) I'll be puting a new intake manifold,4 barrel carb 600cfm, headers, dual exahaust, I'd like to put in a cam and a msd ignition, and from what I've heard about these engines, you don't need much more than that to get alot of performace out of them.
About the oil pressure, see what the new gauge shows. If it runs around 25-50 it should be fine.
Good luck
I'm going to tune up my 400,(it was a new block 70k ago) I'll be puting a new intake manifold,4 barrel carb 600cfm, headers, dual exahaust, I'd like to put in a cam and a msd ignition, and from what I've heard about these engines, you don't need much more than that to get alot of performace out of them.
About the oil pressure, see what the new gauge shows. If it runs around 25-50 it should be fine.
Good luck
Senior User
Joined: Feb 2004
Posts: 258
Likes: 0
From: e-burg
These motors are notorious for low oil pressure but they tend to last a long time with no problems. most the time on a non rebuilt motor anywhere from 10-15 idle is normal. carb intake and exhaust will open things up quite a bit.i would sugest going with dual 2.5" though. any bigger than that and u will start to lose low end torque. hope that helps
Thread Starter
|
Senior User
Joined: Nov 2003
Posts: 127
Likes: 2
From: Chilliwack
i would sugest going with dual 2.5" though. any bigger than that and u will start to lose low end torque.
