Engine swap for better Ecomomy
Thread Starter
|
New User
Joined: Sep 2003
Posts: 6
Likes: 0
Engine swap for better Ecomomy
Hi
My 1977 2wd has a 400cu with a c6 both okay.IF i do a swap for better
ecomomy which below would be better.
1. A 300cu and what would i have to aquire besides the Engine and trans.
2.A 302 and trans.
Quentin
My 1977 2wd has a 400cu with a c6 both okay.IF i do a swap for better
ecomomy which below would be better.
1. A 300cu and what would i have to aquire besides the Engine and trans.
2.A 302 and trans.
Quentin
Posting Guru
Joined: Dec 2003
Posts: 1,157
Likes: 0
From: Wichita, KS
You would have to drive a lot for an engine swap to pay for itself, unless you already have the other engine and other parts, and free time and tools (or free help) to do the work. If you don't mind tinkering, I think I'd look into putting in an OD transmission behind the 400.
Postmaster
Joined: Jul 2003
Posts: 2,544
Likes: 2
From: okc
quite honestly, most old ford engines get about the same mileage when they are up to par and geared the same, the only thing that will get you better mileage is keeping the engine maintained and properly tuned, then get the rearend gears suited to your driving needs, taller for pulling loads in town and using the truck as a work horse, shorter for daily driving and highway cruising, ive seen I6's that only get 6 mpg because of the way they were geared, my 460 get 12-14mpg cause i have a 3.00 rearend in it, the only way i can improve this is to get a 4 or 5 speed tranny in place of my 3 speed, so i have shorter gears for highway speeds and my rpms will not be as high at those speeds.i hope this makes sense............
Trending Topics
Posting Guru
Joined: Jun 1999
Posts: 1,172
Likes: 2
From: SW Missouri
get an E40D, and a stand-alone controller. that will be the best way to get better mileage from what you have.
is it a 250 or a 150? a 150 with 3.00 gears, will get about 15 with a 400, pretty close to the 16 I used to get from my 300 with 3.00 gears. havent tried a 302 yet... (351c 2v/c-6 was pretty good at 17, didnt drive the windsor attempt long enought to tell, but it didnt run well anyway...)
is it a 250 or a 150? a 150 with 3.00 gears, will get about 15 with a 400, pretty close to the 16 I used to get from my 300 with 3.00 gears. havent tried a 302 yet... (351c 2v/c-6 was pretty good at 17, didnt drive the windsor attempt long enought to tell, but it didnt run well anyway...)
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Posting Guru
Joined: Jun 1999
Posts: 1,172
Likes: 2
From: SW Missouri
oh yeah, Holley pro-jector works really well on 400s, and seem to help a lot.
also install a 1971 timing chain set from a LTD/Marquis, and crane roller fulcrums. the combo should be worth 2mpg
also install a 1971 timing chain set from a LTD/Marquis, and crane roller fulcrums. the combo should be worth 2mpg
Thread
Thread Starter
Forum
Replies
Last Post
Quentin10
1967 - 1972 F-100 & Larger F-Series Trucks
5
May 27, 2014 03:04 PM
Quentin
1973 - 1979 F-100 & Larger F-Series Trucks
1
Nov 9, 2005 09:17 PM
Quentin
1973 - 1979 F-100 & Larger F-Series Trucks
54
Jan 1, 2004 08:31 PM
Quentin
1973 - 1979 F-100 & Larger F-Series Trucks
7
Sep 19, 2003 03:52 PM