Engine Questions
Thread Starter
|
New User
Joined: Aug 2004
Posts: 5
Likes: 0
Engine Questions
Hello, I have a question for anyone knowing anything about 351m/400's. I have a 1978 F250 with one of these two engines, not sure which though. When i got the truck it was not running well and i was told that it burned quite a bit of oil. I planned on getting it rebuilt but somebody told me that the heads off of M engines could not be rebuilt and the motor was a waste of time for that reason. I wanted to know if this was true or not. Any info would be much appreciated, thanks.
Jon
Jon
Last edited by boardwalk72; Aug 3, 2004 at 05:37 PM.
Post Fiend
Joined: Jan 2003
Posts: 10,323
Likes: 2
From: Montana Territory
You better not listen to that someone again.
Take a look at the VIN code, if its an S (4th character) its a 400, if its an H, its a 351M.
M heads are rebuildable, they fit the 400 and 351C (for the sake of confusion, don't worry about the C)
Personally, I'd rebuild it as a 400 with the addition of a 400 crankshaft and pistons... With a mild Comp Cams 255DEH, you could make some serious power.
Take a look at the VIN code, if its an S (4th character) its a 400, if its an H, its a 351M.
M heads are rebuildable, they fit the 400 and 351C (for the sake of confusion, don't worry about the C)
Personally, I'd rebuild it as a 400 with the addition of a 400 crankshaft and pistons... With a mild Comp Cams 255DEH, you could make some serious power.
Thread Starter
|
New User
Joined: Aug 2004
Posts: 5
Likes: 0
Thanks
Thankyou for the info. I will take your advice and definetly rebuild the motor. I wanted to rebuild it with more than stock power, good for doing some heavy towing. If you know of any good websites or threads or have any advice for making a reliable yet powerful motor any suggestions would be much appreciated.
P.S. How much does that cam usually cost??
Thankyou very much,
Jon
P.S. How much does that cam usually cost??
Thankyou very much,
Jon
Post Fiend
Joined: Jan 2003
Posts: 10,323
Likes: 2
From: Montana Territory
Cams are right about $100... thats a kit, with the lifters...
http://www.fordtrucks.com/forums/forumdisplay.php?f=54
try that for recipes....
hey thats pretty cool... i put in a link to the same thread....
http://www.fordtrucks.com/forums/forumdisplay.php?f=54
try that for recipes....
hey thats pretty cool... i put in a link to the same thread....
Thread
Thread Starter
Forum
Replies
Last Post
brownbronco
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
2
Mar 2, 2007 05:10 PM
bikerwolfie
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
16
Jan 11, 2003 11:36 AM
onewaymike
1948 - 1956 F1, F100 & Larger F-Series Trucks
5
Nov 30, 2002 02:02 PM
