351w or 400
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Junior User
Joined: May 2002
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351w or 400
Hi gang. I have an f350 with a 351w. It has 200k on it and is a bit tired. I have looked into rebuilds and stroker kits and such(this list has been invaluable). I came across a guy with a 351m converted to a 400 with a transmission with 20,000 on a rebuild. I can't decide if I want to swap my 351 for the 400 or not. I can get the new engine for a couple hundred bucks. A rebuilt would be at least $1500. But I'm concerned about finding(performance) parts for the 400. I'm assuming I would have to changed engine mounts as well. It seems the aftermarket has lots of parts for the Windsor but nada for a 400. Any input is appreciated.
John
John
Laughing Gas
Joined: Jul 2001
Posts: 1,019
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From: Bismarck, ND
351w or 400
Personally, I'd stick with the 351W or go with a 460. You didn't mention what year your truck was, but I've got to assume the 400 wasn't offered in it from the factory. I'm not knocking the potential of a built 400, and a couple of hundred sounds like a good deal, but the 351W is a lot more popular, meaning there are many more aftermarket performance parts available for it for less money.
New User
Joined: Jul 2002
Posts: 12
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351w or 400
My experince with the 351w is they are very dependable and fair on gas. The 351m and400m is a good engine when it is runing but stays broke or running poorly most of the time. I am sure that there will be others who will disagree. I would never use a 351/400m unless I had to.
Senior User
Joined: Jun 2002
Posts: 423
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From: Oklahoma
351w or 400
351M/400 V8 performance parts are out there. Intakes are available from Edelbrock and Weiand. The engine is basically a raised deck 351-2V Cleveland with bigger mains and longer rods so cams for the Cleveland work. The lifters, rocker arms, valve springs and valves from the 429/460 will work too.
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