engine swap
Thread Starter
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Freshman User
Joined: Aug 2004
Posts: 42
Likes: 0
From: texas
engine swap
Hello from Texas, this is my first post,
I have a 1978 1/2 ton 4x4, 400 bored .030 over, 4 speed w/granny, np205 tcase, 9" ford rearend w/3.50 gear. Has factory lift, 16" wheels.
My question is I am thinking about swapping my 400 for a 300 i6, mainly for gas mileage. Just want some feedback to see what ya'll think.
Thanks, Wally
I have a 1978 1/2 ton 4x4, 400 bored .030 over, 4 speed w/granny, np205 tcase, 9" ford rearend w/3.50 gear. Has factory lift, 16" wheels.
My question is I am thinking about swapping my 400 for a 300 i6, mainly for gas mileage. Just want some feedback to see what ya'll think.
Thanks, Wally
all alone in the world
Joined: Feb 2002
Posts: 2,038
Likes: 1
From: oklahoma
yes---no---mabey! 300 might help, then again it might not. you are talking about a lot of work for a possible no gain.what kind of mileage are you getting now? what are you expecting from the 300? taller tires, higher gears, or changing your driving habits, these 3 things will help fuel economy the most.
jim
jim
Thread Starter
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Freshman User
Joined: Aug 2004
Posts: 42
Likes: 0
From: texas
Gas mileage is about 7 or 8 mpg, runs great, lots of power. I have replaced 1 rearend. This truck is driven about 50 miles a day, and I just thought a I6 would give me good low end and decent mileage to boot. I don't want to lose the performance the 3.50 gear gives me.
Wally
Wally
