Cubic Inches
Posting Guru
Joined: Dec 2000
Posts: 1,686
Likes: 1
From: Racine WI
Cubic Inches
i thought the 7.3 was 444 atleast thats what IH calls it on the hood of their straight trucks DT444E D being that its a "D Series" engine "T" being that its turbocharged and 444 being the cubes and "E" being that its electronically injected i may be wrong but im pretty sure to bad they didnt put the DT466E in the ford trucks thats one step better than that 444
More Turbo
Joined: Nov 2000
Posts: 715
Likes: 11
From: Erie, PA
Cubic Inches
You are correct. There are two different 7.3 engines used in the fords. They are the 7.3 IDI(In-Direct Injection) that was offered in 1988 thru 1994.5. Then there was the powerestrokes offered that were basically DT444E but nick-named "Powerstrokes". The 7.3 IDI is 445 ci and the 7.3 Powerstoke is 444ci.
Elder User
Joined: Jan 2000
Posts: 656
Likes: 0
From: Gravel Switch, KY
Cubic Inches
I don't have a diesel, but I do have a question for you guys. What if any difference is there between the 445 and the 444 as far as block, crank, heads, etc. are concerned? I am curious as to what accounts for the 1 cubic inch difference. Any other info would be appreciated as well. My brother is considering buying a diesel and I am trying to get a handle on all this. From what I have gathered, the old IDI 7.3 is cheaper to work on than the newer one (someone said injectors were $3,000). Thanks.
DannyP
89 F-150 4x4 former EFI I-6 now carbed 351W, Edelbrock heads,cam,intake,carb.
MSD 6A, ZF, Sterling 10.25 with 3.55L's.
DannyP
89 F-150 4x4 former EFI I-6 now carbed 351W, Edelbrock heads,cam,intake,carb.
MSD 6A, ZF, Sterling 10.25 with 3.55L's.
Trending Topics
More Turbo
Joined: Nov 2000
Posts: 715
Likes: 11
From: Erie, PA
Cubic Inches
Once again,
1988- 1994.5 = 7.3 IDI 445ci (in- direct injection) Old style, looks like a 6.9 but has 1/2 inch head bolts bigger pistons, and without a turbo from 1988- 1993. Can be identified by having a injector pump. Some time in 1993 they offered a factory turbo for the 7.3IDI and discontinued it in 1994.5. The 6.9's and 7.3 IDI's look almost identical and sound identical.
1995- 2001 = 7.3 444ci "Powerstroke" (Direct Injection) New style, totally electronically controlled. Different engine all together. Uses a high pressure oil system for injection operation. Very expensive to repair and most home mechanics can not fix them because of the expensive tools required. They sound very loud and can be identified by the loud turbochargers.
1988- 1994.5 = 7.3 IDI 445ci (in- direct injection) Old style, looks like a 6.9 but has 1/2 inch head bolts bigger pistons, and without a turbo from 1988- 1993. Can be identified by having a injector pump. Some time in 1993 they offered a factory turbo for the 7.3IDI and discontinued it in 1994.5. The 6.9's and 7.3 IDI's look almost identical and sound identical.
1995- 2001 = 7.3 444ci "Powerstroke" (Direct Injection) New style, totally electronically controlled. Different engine all together. Uses a high pressure oil system for injection operation. Very expensive to repair and most home mechanics can not fix them because of the expensive tools required. They sound very loud and can be identified by the loud turbochargers.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
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
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
