400M Opinions
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New User
Joined: Jul 2002
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400M Opinions
I'm planning a engine rebuild for my 72 SWB(3+1OD 3.25gear)
and would like some comments about the choices I've made..
Stock heads with 3 angle v.job (milled .015")
CompCam 270H
Weiand dual plane manifold
Carter 600cfm carb
Stock pistons
Mallory Unilite dizzy
Full length headers?????
Thanks in advance!!!!
and would like some comments about the choices I've made..
Stock heads with 3 angle v.job (milled .015")
CompCam 270H
Weiand dual plane manifold
Carter 600cfm carb
Stock pistons
Mallory Unilite dizzy
Full length headers?????
Thanks in advance!!!!
Elder User
Joined: Aug 2001
Posts: 962
Likes: 2
From: Collierville, TN
400M Opinions
I'm no expert on the M engines, but I've never heard anything good about them. A 400M certainly wasn't what your truck originally had. Why not replace it with a stroked small block or even a 460?
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New User
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400M Opinions
I happen to have a 400 laying in my garage at the moment and want more torque than the tired 302 currently in the truck. A 460 would be my first choice with a Tremec TKO behind it but my "toy" fund is at a all time low!
m.d.
m.d.
Lead Driver
Joined: Nov 2000
Posts: 6,648
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From: Albuquerque
400M Opinions
If you have to buy pistons a "little" more compression would be a good idea. Without it you might have too much cam. Use a new timing gear set "with straight up" timeing, not 7deg retarded like stock.
Tuned
Joined: Jun 2001
Posts: 266
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400M Opinions
>I'm no expert on the M engines, but I've never heard
>anything good about them. A 400M certainly wasn't what your
>truck originally had. Why not replace it with a stroked
>small block or even a 460?
If you have not heard anything good about them then you must be new to this board. There are certainly some downfalls such as lack of high compression pistons, no factory 4V carb/intake, retarded timing chain, etc - but these can be overcome. There is a fellow that frequents this board that has gotten 800 HP (for truck pulling). Many of us prefer the 400 due to more torque. Sure, the 460 with the same mods would make more power but the 400 comes close.
>anything good about them. A 400M certainly wasn't what your
>truck originally had. Why not replace it with a stroked
>small block or even a 460?
If you have not heard anything good about them then you must be new to this board. There are certainly some downfalls such as lack of high compression pistons, no factory 4V carb/intake, retarded timing chain, etc - but these can be overcome. There is a fellow that frequents this board that has gotten 800 HP (for truck pulling). Many of us prefer the 400 due to more torque. Sure, the 460 with the same mods would make more power but the 400 comes close.
Elder User
Joined: Feb 2001
Posts: 829
Likes: 0
From: Porterfield
400M Opinions
>I'm no expert on the M engines, but I've never heard
>anything good about them. A 400M certainly wasn't what your
>truck originally had. Why not replace it with a stroked
>small block or even a 460?
Well apparently your right about not being an expert on the M engines.
With a little TLC and some home work you can get 500 Hp out of an 400 easy.
ShaZam
>anything good about them. A 400M certainly wasn't what your
>truck originally had. Why not replace it with a stroked
>small block or even a 460?
Well apparently your right about not being an expert on the M engines.
With a little TLC and some home work you can get 500 Hp out of an 400 easy.
ShaZam
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400M Opinions
karlsd
Charter User
734 posts
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Elder User
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Never heard anything good about M engines?
He posts a lot but apparently doesn't read much.
Must have clicked on this forum by mistake.
Charter User
734 posts
8 feedbacks
16 points
Elder User
Club FTE Member
Never heard anything good about M engines?
He posts a lot but apparently doesn't read much.
Must have clicked on this forum by mistake.
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Joined: Nov 2000
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From: Albuquerque
400M Opinions
If figure if I can get 2 and 1/2 tons down the dragstrip in less than 15 seconds and still drive it daily and haul stuff when I want then the 400 is good motor. By the way I'm a mile above sea level and a friends Saleen Mustang only does 14.8.
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