Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1987 - 1996 F150 & Larger F-Series Trucks
Sign in using an external account
Register Forgot Password?


1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 06-28-2013, 05:04 PM
fordcaver91 fordcaver91 is offline
Freshman User
 
Join Date: Apr 2011
Posts: 48
fordcaver91 is starting off with a positive reputation.
7.3 vs 351

ok so I got a 1989 f250 wit a bad 300 in it.. found a 89 351 but also found a 89 7.3.. both are the same price.. its going ta be a hauler so what would be better, cheaper choice?? how hard is it ta put a 7.3 in it??
Reply With Quote
  #2  
Old 06-28-2013, 06:23 PM
f100beatertruck's Avatar
f100beatertruck f100beatertruck is offline
Posting Guru
 
Join Date: Apr 2003
Location: Parkesburg PA
Posts: 1,991
f100beatertruck has a very good reputation on FTE.f100beatertruck has a very good reputation on FTE.f100beatertruck has a very good reputation on FTE.
cobra2411
I'm assuming you're going to swap motors? If so the 351 will bolt to the existing transmission, making things somewhat easier. Are you going to use EFI? You'll need the 351 computer plus some other things.

Now, the diesel... You'll need a new trans and mounts for starters. I'm no diesel expert but I believe the 89 is mechanical still so wiring shouldn't be too bad.

Are these engines or did you find parts trucks? With a parts truck I'd do the diesel assuming the trans is good from the parts truck. If they're just motors the 351 might be a better choice but a 300 six will be a direct bolt in. Also, the 300 doesn't have to come from an 89. 87-96 should work and earlier may work too. You can use the sensors and EFI parts from your engine. It may be worth while to pass and keep looking for a 300.
__________________
David
-= 86 F250 HD Super Cab, 4x4 351/C6 & 86 F250 HD Super Cab, 4x4 351/T18 =-
-= 05 Mustang GT 13.53@103.6 & 93 Mustang Cobra 14.21@99.8 = -
-= 89 Bronco 302/AOD, 87 F250LD 351/C6, 86 F150 302/AOD =-
Reply With Quote
  #3  
Old 06-28-2013, 07:39 PM
FORDF250HDXLT's Avatar
FORDF250HDXLT FORDF250HDXLT is online now
Diesel Junkie
 
Join Date: Jul 2006
Posts: 11,909
FORDF250HDXLT has much to be proud ofFORDF250HDXLT has much to be proud ofFORDF250HDXLT has much to be proud ofFORDF250HDXLT has much to be proud ofFORDF250HDXLT has much to be proud ofFORDF250HDXLT has much to be proud ofFORDF250HDXLT has much to be proud ofFORDF250HDXLT has much to be proud ofFORDF250HDXLT has much to be proud of
also the diesel is more involved not just due to a different trans,but the fuel tanks and the cooling system.radiator support and larger rad and so forth.with so many idi trucks around for good enough prices.you'd probably be in a diesel truck cheaper just buying one rather than sourcing all the parts.the donor truck would need to a real cream puff 4x4 to be worthwhile imho.otherwise just toss another 300 in her and run it for a while,then buy a diesel truck latter when ready for one.even the old idi's are expensive due to tuning costs and maintenance.not compared to modern diesels,but compared to any of the gas engines of the era.
__________________
♠ Log Truck: '93 F-Super Duty (F450) XLT 1st Gen Navistar 444ci IDI Diesel w/ Intercooled 2nd Gen Banks Sidewinder Turbo, E40D, 5:13, Dually, 16' Dump & Auto Crane ♠
♠ Chip Truck: '93 F250HD XLT 4x4 1st Gen Navistar 444ci IDI Diesel w/ Intercooled 2nd Gen Banks Sidewinder Turbo, E40D, 3.55, Dually, 9' Dump, & Plow ♠

Reply With Quote
  #4  
Old 06-28-2013, 08:13 PM
BigBlockF350's Avatar
BigBlockF350 BigBlockF350 is offline
Posting Guru
 
Join Date: Jan 2013
Location: VA
Posts: 1,869
BigBlockF350 has a very good reputation on FTE.BigBlockF350 has a very good reputation on FTE.BigBlockF350 has a very good reputation on FTE.BigBlockF350 has a very good reputation on FTE.
@CollinHuber
For simplicity, I'd just look for a 300. The 300 is also a decent hauling engine with the low end torque that it makes, and it'll make better MPG numbers than a 351.
__________________
- Collin
68' Falcon Futura, 200 c.i. I6
88' F-350 RCLB 4x4, 5.5" lift, 37s, C6, 4.56 gears 1973 468, long tubes, RV cam, ported heads, Stealth intake
My Build Thread
Reply With Quote
  #5  
Old 06-28-2013, 10:05 PM
GNR22's Avatar
GNR22 GNR22 is offline
Posting Guru
 
Join Date: Mar 2011
Location: Princeton, Wisconsin
Posts: 1,985
GNR22 has a good reputation on FTE.GNR22 has a good reputation on FTE.
Quote:
Originally Posted by BigBlockF350 View Post
and it'll make better MPG numbers than a 351.
Not likely. If it's going to be a hauler, a 300 is going to have to work harder to pull than a 351 in a 3/4 ton pick up. At worst, theyll pull about the same MPG, the 351w may even beat it.

Anyway, 351w is a lot more simple than putting in a diesel. Like these guys have said, in all likelihood, it'd probably be easier and cheaper to just buy a diesel truck if you want to go that rough.

Personally, I'd just go with the 351w given those 2 choices. If you find that you require more power than what the stock windsor offers, upgrading the motor is very easy and relatively cheap.
__________________
--Davey
-1989 F250 (RCLB) 4x4, 4speed NP435 tranny, SAS D44HD, 351w, 3.55 (L/S front and rear), F250/350 Hybrid Suspension, Pacesetter Shorty Headers, into 3" Summit Racing Street and Strip Mufflers, 235/85R16 Uniroyal Liberators.
-1994 Thunderbird LX, Moonlight Blue, 4.6L, Automatic, Bone Stock
-2012 Focus SE
Reply With Quote
  #6  
Old 06-29-2013, 09:10 AM
snowdog79's Avatar
snowdog79 snowdog79 is offline
Elder User
 
Join Date: Mar 2006
Posts: 729
snowdog79 is starting off with a positive reputation.
I guess it depends on what you mean by "its going ta be a hauler". How heavy will the loads be? I currently own both a 351 and IDI w/turbo, and have owned a few 300s. I would go with another 300, or if you must have a V8, the 351. The 300 will pull for days if you have the right gearing, and it would be an easy swap. Great motor. The 351 swap will be a PITA as there are many differences like the CPU, exhaust, etc. More power, definitely a lot more top end, but the MPGs are quite a bit lower. Still, I love my 351, mine has been an awesome running motor (179k on it right now). Forget the IDI. First the swap would suck. Most everything under the hood is different - right back to the tranny. And unless you are looking at really big loads (8k+ trailers), the diesel really won't haul that much better, and if big loads are a reality, you would really want to go with a turbo for the diesel anyway. And even then, it's not like it's going to pull like a 6.7 Power Stroke (or any relatively modern diesel).
__________________
Current Ford Trucks: 94 F250 SC, 4x4/IDIT/5M
Previous:69 F600 300/5+2, 77 F250 4x2/351M/C6, 78 F150 SC 4x2/300/3M, 79 F150 4x4/400/T18, 85 Bronco II XLT 4x4/2.8/a, 89 F150 4x4/300/4M, 93 EB Bronco 5.0, 00 F150 7700 SC 4x4/5.4, 00 Ranger SC 4x4/4.0, 01 F350 CC 4x4 DRW PSD, 03 Explorer 4.6/AWD,07 F150 Screw 4x4/5.4, 94 EB Bronco 5.8
Reply With Quote
  #7  
Old 06-29-2013, 01:30 PM
21411 21411 is offline
Elder User
 
Join Date: Mar 2005
Location: chicago burbs
Posts: 546
21411 is starting off with a positive reputation.
If this is a daily driver work vehicle, fix or find a 300. Motor swaps are not easy. The 351w, will bolt in. Then what? Cooling, exhaust, ac, computer? And don't forget the trans is fine behind the 300, who knows what'll happen with 8 cyl in front now. Your going to want to try that 351 out, trust me. And it'll show the weak points that the 300 was fine with. If its a nice truck, bad motor situation, I suggest fining another truck to work till you can get this one up and running right. Just my thoughts.
Reply With Quote
  #8  
Old 06-29-2013, 01:54 PM
GNR22's Avatar
GNR22 GNR22 is offline
Posting Guru
 
Join Date: Mar 2011
Location: Princeton, Wisconsin
Posts: 1,985
GNR22 has a good reputation on FTE.GNR22 has a good reputation on FTE.
Quote:
Originally Posted by 21411 View Post
If this is a daily driver work vehicle, fix or find a 300. Motor swaps are not easy. The 351w, will bolt in. Then what? Cooling, exhaust, ac, computer? And don't forget the trans is fine behind the 300, who knows what'll happen with 8 cyl in front now. Your going to want to try that 351 out, trust me. And it'll show the weak points that the 300 was fine with. If its a nice truck, bad motor situation, I suggest fining another truck to work till you can get this one up and running right. Just my thoughts.
Putting in a windsor to replace an I6 is much easier than you're making it out to be. You can have your current motor out, and a new one in place in a day. And it is certainly an upgrade from the I6 in a truck that is going to pull loads.

Whatever tranny you have will hold up to a 351w also, unless it already has problems.
__________________
--Davey
-1989 F250 (RCLB) 4x4, 4speed NP435 tranny, SAS D44HD, 351w, 3.55 (L/S front and rear), F250/350 Hybrid Suspension, Pacesetter Shorty Headers, into 3" Summit Racing Street and Strip Mufflers, 235/85R16 Uniroyal Liberators.
-1994 Thunderbird LX, Moonlight Blue, 4.6L, Automatic, Bone Stock
-2012 Focus SE
Reply With Quote
  #9  
Old 06-29-2013, 06:20 PM
garthneddy's Avatar
garthneddy garthneddy is offline
Posting Guru
 
Join Date: May 2012
Location: Franklin, IN
Posts: 1,209
garthneddy is gaining momentum as a positive member of FTE.
GNR is right about the 300 to SBF conversion being a lot easier then everyone is making it sound. Having owned both the non-turbo IDI and the 351w, I'd take the IDI for hauling duties but its going to be a very involved swap.
__________________
'81 F250 4wd 302/ZF5/NP205

'94 Ranger 2wd 2.3/M5OD
Reply With Quote
  #10  
Old 06-29-2013, 08:25 PM
Sapphire Blue_95's Avatar
Sapphire Blue_95 Sapphire Blue_95 is offline
Senior User
 
Join Date: Apr 2013
Location: Dawsonville, Georgia
Posts: 150
Sapphire Blue_95 is starting off with a positive reputation.
Like many have said above.....if your hauling heavy loads, take the 7.3. However, it would just be SO much easier to sell your existing truck to purchase a factory diesel truck. 351's are good, but I wouldn't want to use them to haul with. Now why Ford put 351's in some (few) crew cab dually F-350's.....I'll never know. A four door dually is already heavy enough for that engine, then put whatever trailer behind it, and I'm sure it'll be sluggish.

Back to your engine swap....If it's hauling you need, I'd maybe even try and find a 460. You certainly wouldn't get the mileage you'd like, but I have seen a 460 out-pull a 7.3 diesel.
__________________
1995 F-150 XLT: 5.0, Every Option Except Power Mirrors. Rare Sapphire Blue & Silver Paint
2001 Mustang SVT Cobra: 4.6 DOHC, 4:10's, Roush Shifter, 330+ HP. I of 347 Zinc Yellow Cobra's

Reply With Quote
Old 06-29-2013, 08:25 PM
Reply

Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1987 - 1996 F150 & Larger F-Series Trucks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Axle code and match? RL250 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks 7 05-13-2014 01:03 PM
Lets identify this compsec Pre-Power Stroke Diesel (7.3L IDI & 6.9L) 4 05-04-2014 03:11 PM
TA 30 use on 7.3? kyle j 1994.5 - 1997 7.3L Power Stroke Diesel 5 03-12-2013 09:30 PM
Tire date code TA455HO 1961 - 1966 F-100 & Larger F-Series Trucks 4 10-17-2012 08:09 PM
BFGoodrich Announces Voluntary Safety Recall for Commercial T/A A/S tires Franko72 Towing, Trailers & 5th Wheels 80 09-08-2012 09:19 PM



All times are GMT -5. The time now is 11:37 PM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup