GOOD DEAL
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Fleet Mechanic
Joined: Apr 2008
Posts: 1,522
Likes: 21
From: HUDSON, FL
That 351 is out of a 78 ford van,& that engine is going in my garage for now as i already have a rebuilt 5.0 in my 53 mercury convertible & a
302 w/aod in my 51 f1. I just cant pass up the deal
302 w/aod in my 51 f1. I just cant pass up the deal
Junior User
Joined: Aug 2011
Posts: 65
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i had 73 f-250 with a 400 and it had cooling issues. it also got terrible mileage (8 mpg with or without a load).
Elder User
Joined: Mar 2011
Posts: 935
Likes: 2
From: Vancouver, WA
Windsor Family: 221, 260, 255, 289, 302, 351W
Mid-block Family or 335 series: 351C, 351M, 400M
FE Family: 352, 360, 390, 406, 410, 427, 428
Big-Block Family or 385 series: 370, 429, 460
The 400 can be built to be a real good runner. The biggest problem that plauged the M engines was the poor cylinder head design. They were prone to cracking. If you had a tone of miles on one, you were fortunate enough to get one of the good ones. Add to that they were low compression pigs producing very poor power outputs, and most were under carbed with only a single 2bbl.
I rebuilt a 400M for a friend of mine that wanted the original engine back in his grandpa's '78 pu that was given to him. I used 351C pistions,(increase compression) healthy cam, headers, good 4bbl intake and carb. Thing ran like a raped ape! If the Edelbrock cyl heads were available then, i would have used them and probably really seen some power gains. The 400 can be built, just depends on how much money you want to spend. The 335 series engines are heavy dinosaurs and in reality are just not worth $-wise building when compared to the Windsor family. One saving grace for the 351C is that it does use the same tranny as the post-'65 Windsor family.
Mid-block Family or 335 series: 351C, 351M, 400M
FE Family: 352, 360, 390, 406, 410, 427, 428
Big-Block Family or 385 series: 370, 429, 460
The 400 can be built to be a real good runner. The biggest problem that plauged the M engines was the poor cylinder head design. They were prone to cracking. If you had a tone of miles on one, you were fortunate enough to get one of the good ones. Add to that they were low compression pigs producing very poor power outputs, and most were under carbed with only a single 2bbl.
I rebuilt a 400M for a friend of mine that wanted the original engine back in his grandpa's '78 pu that was given to him. I used 351C pistions,(increase compression) healthy cam, headers, good 4bbl intake and carb. Thing ran like a raped ape! If the Edelbrock cyl heads were available then, i would have used them and probably really seen some power gains. The 400 can be built, just depends on how much money you want to spend. The 335 series engines are heavy dinosaurs and in reality are just not worth $-wise building when compared to the Windsor family. One saving grace for the 351C is that it does use the same tranny as the post-'65 Windsor family.
Thread Starter
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Fleet Mechanic
Joined: Apr 2008
Posts: 1,522
Likes: 21
From: HUDSON, FL
Well now i have a aerostar ifs 351w & c6-373 rear power bucket seats
new radio & speakers & a few other things laying around all i need now ia another truck & that is not going to happen at least not for a long time,
who knows i may end up selling the whole set up,i hope that i dont have to but who knows what the future will bring
new radio & speakers & a few other things laying around all i need now ia another truck & that is not going to happen at least not for a long time,
who knows i may end up selling the whole set up,i hope that i dont have to but who knows what the future will bring
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King_of_Norway
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
6
Jan 14, 2006 08:23 PM
Native Gearhead
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
7
Aug 15, 2003 10:10 PM
