351W to 300 Inline
Thread Starter
|
Freshman User
Joined: Feb 2008
Posts: 26
Likes: 0
351W to 300 Inline
What would one have to do to swap a old 351W for a newer 300 inline? Would this work? Would it have enough power to run up and down the mountains? I live in the mountains and the roads are sometimes pretty steep. i have a c6 auto transmission and 4x4. Thanks for any reply.
Posting Guru
Joined: Sep 2006
Posts: 1,781
Likes: 1
You could do it. You would have to get new motor mounts, new flywheel, possibly new starter. Probably a differernt fuel pump. All in all why would you want to change to a smaller motor? Your not gonna get any better fuel economy if the roads are that steep.
Thread Starter
|
Freshman User
Joined: Feb 2008
Posts: 26
Likes: 0
i was thinking about doing it because my uncle had a 94' f-150 with a 4.9L in it but wrecked it. The motor only had 87k miles on it and my old motor has 300k miles on it. But would it be cheaper to rebuild my engine i have now?
Elder User
Joined: Jan 2009
Posts: 712
Likes: 0
From: Blue Eye, mo. hwy 86 & JJ
my inline does pretty good here in the hills (arkansas) and i never have to take it out of 4th, milage varies between 15-20.... and although mine was blown at 100k by the PO, they say they'll run for hundreds of thousands of miles....
Postmaster
Joined: May 2008
Posts: 2,703
Likes: 3
From: La Vergne, TN
depends on what you want if you want a motor that will never lay down and will pull on the mountains all the time but not possibly go fast the 300 is the way to go. if you want all the same but the ability to go fast. rebuild the 351W.
Post Fiend
Joined: Nov 2005
Posts: 7,437
Likes: 4
From: Charles Town, W bygod Va
if the 351's still kicking then dont even consider it. For what it would cost to swap them you could sell the I6 complete and take that money plus what youd spend in flywheels and fuel pumps and crap to put towards a reman 351w. It should cost about the same and be less effort with better results
Trending Topics
Posting Guru
Joined: Sep 2006
Posts: 1,781
Likes: 1
The hills in Arkansas must not be that big because there is no way I get near that good of mileage in Minnesota. I get like 10-13 with the hills we have and when I am on the high way I get right around 21-23 from Minnesota back to INdiana on the highway. I would assume you would get the kind of miles per gallon that I am getting here if your really in the mountians. I would just sell the 300 and look for a 351 if yours is dying.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote