300 to 351 swap

caseih · 08-30-2009, 09:40 AM

ok im looking into swaping out my 95 f150s 300 to 351. i was just wondering what all parts other than the motor and motor mounts will i need

bradrhale · 08-30-2009, 09:46 AM

which 351?? funny you mention this swap. very few people out there that is willing to trade out the bullet proof 300 for a 351 unless they have something hot going back in.

caseih · 08-30-2009, 07:51 PM

i was gunna put a windsor in it. well the reason im looking to swap is because the l6 isnt cutting it for towing. cant really haul a skidloader to well with and other farm equipment. i though about just buyin another truck. but cant really afford it

dyoyo · 08-31-2009, 11:37 PM

hey caseih: dyoyo in texas here . idid this swap in an 82 witch is the same deal you need the motor mount towers for a 302/351, motor mounts also. you will need the v/8 fly wheel &correct oil pan & OIL PUMP PICK UP THE CLUTCH&TRANS. BOLT UP OK ALSO NEED EXHUSTT MANIFOLDS&CORECT RADIATOR YOUWILL ALSO NEED THE WIREING&ECM UNIT. HOPE THIS HELPS GET YOU STARTED. THIS WAS A GREAT SWAP FOR ME & EASY BOLT IN. REGARDS DYOYO

hotrodpc · 09-01-2009, 02:58 AM

Whoa Nelly. Hold up. This is not the same swap as an 82. Easily done in an 82, not so easily done in a 95. The 82 was a non computer carbed set up, the 95 is multi port EFI. Other things to be considered here. Harnesses, ECM etc. I am with Brad on this one, and Case's other suggestion of just getting another truck. That long stroke 300 is usually a good pulling motor. I had a 96 F-150 300 5 Speed and pulled a 16 tandem axle trailer full, high and tight, 6ft tall front to back full of computer cases and the bed 4ft tall high and tight. It was a load. The bumper about 8 inches off the ground and I carried that load from Phoenix, AZ to OKC, OK. Used 4th gear alot and got down to 40mph climbing some of the hills, but it did it fine, and I don't think a 302 or 351W would have done a whole lot better. Sure it may have been a tad better, but not worth the expense and headache. Whats the condition of your 300? Maybe its time to be freshened up. If its in good shape and not cutting the mustard, I think its time to upgrade trucks. Sounds like you need a 3/4 ton. Also to mention, rear end gear ratio. You may get a bigger gain by going to a lower ratio. A 3.54 or 3.73 should do better if that is not what you have now. I can not see putting a 4.10 in a half ton, but if its what you have to do, then its whats you have to do. I think you might be considering the wrong upgrade.

Case 7230 · 09-01-2009, 03:02 AM

Quote:

Originally Posted by dyoyo

hey caseih: dyoyo in texas here . idid this swap in an 82 witch is the same deal you need the motor mount towers for a 302/351, motor mounts also. you will need the v/8 fly wheel &correct oil pan & OIL PUMP PICK UP THE CLUTCH&TRANS. BOLT UP OK ALSO NEED EXHUSTT MANIFOLDS&CORECT RADIATOR YOUWILL ALSO NEED THE WIREING&ECM UNIT. HOPE THIS HELPS GET YOU STARTED. THIS WAS A GREAT SWAP FOR ME & EASY BOLT IN. REGARDS DYOYO

What he says.

caseih · 09-02-2009, 07:39 PM

yea i like the idea of regearin it. alot less headache. and for the shape of the motor it just turned over to 133000.so id say the motors still in good shape sense its a 300. i just figured its pretty hard on it pullin skidloaders all the time and hay wagons and stuff like that. ive been thinking about it and i might just try an find another truck with a 351 to run back an forth between the barn and keep this truck nice. plus haulin the cow trailer with 3 cows it kinda lugs down a bit up over the hills out here. it only to 25- 35 over the hills out here unless i really beat on it.

bradrhale · 09-03-2009, 07:01 AM

now that i look back, we may haved jumped the gun here. he never did say which 351 he is wanting to go with. there is a good differance in a windsor and clev.

hotrodpc · 09-03-2009, 07:54 AM

Good Point BH. I have always been a fan of small blocks for some reason. Of course now in the older days and the big blocks disappearing now I want to go big cubes in my older projects. But, in this case, I think the 351w may not be the wise choice IF he chooses to upgrade the engine. As far as towing power (TORQUE), the longer stroke 351c would probably be the better choice, but keep in mind, he is dealing with an injected computer controlled motor, so I think that limits him to the 351w does it not? I am not all up on my #'s on Fords. I think I still like the regearing of the rear end idea better. Mulitply the torque of the 300 I6 would sure make an improvement.

bradrhale · 09-03-2009, 10:46 AM

no, the clevs didnt have FI back then but who says you cant fabricate a way to do it. really dont know what i would choose between a 300 and 351 windsor. both haev advantages.

08-30-2009, 09:40 AM	#1
caseih Junior Member Join Date: Jul 2009 Location: the cove pa Posts: 4	300 to 351 swap ok im looking into swaping out my 95 f150s 300 to 351. i was just wondering what all parts other than the motor and motor mounts will i need

09-01-2009, 02:58 AM	#5
hotrodpc Senior Member Join Date: Jul 2008 Location: OKC, OK Posts: 3,149	Whoa Nelly. Hold up. This is not the same swap as an 82. Easily done in an 82, not so easily done in a 95. The 82 was a non computer carbed set up, the 95 is multi port EFI. Other things to be considered here. Harnesses, ECM etc. I am with Brad on this one, and Case's other suggestion of just getting another truck. That long stroke 300 is usually a good pulling motor. I had a 96 F-150 300 5 Speed and pulled a 16 tandem axle trailer full, high and tight, 6ft tall front to back full of computer cases and the bed 4ft tall high and tight. It was a load. The bumper about 8 inches off the ground and I carried that load from Phoenix, AZ to OKC, OK. Used 4th gear alot and got down to 40mph climbing some of the hills, but it did it fine, and I don't think a 302 or 351W would have done a whole lot better. Sure it may have been a tad better, but not worth the expense and headache. Whats the condition of your 300? Maybe its time to be freshened up. If its in good shape and not cutting the mustard, I think its time to upgrade trucks. Sounds like you need a 3/4 ton. Also to mention, rear end gear ratio. You may get a bigger gain by going to a lower ratio. A 3.54 or 3.73 should do better if that is not what you have now. I can not see putting a 4.10 in a half ton, but if its what you have to do, then its whats you have to do. I think you might be considering the wrong upgrade. __________________ *Winners NEVER Quit , Quitters NEVER Win !!!*

09-03-2009, 07:54 AM	#9
hotrodpc Senior Member Join Date: Jul 2008 Location: OKC, OK Posts: 3,149	Good Point BH. I have always been a fan of small blocks for some reason. Of course now in the older days and the big blocks disappearing now I want to go big cubes in my older projects. But, in this case, I think the 351w may not be the wise choice IF he chooses to upgrade the engine. As far as towing power (TORQUE), the longer stroke 351c would probably be the better choice, but keep in mind, he is dealing with an injected computer controlled motor, so I think that limits him to the 351w does it not? I am not all up on my #'s on Fords. I think I still like the regearing of the rear end idea better. Mulitply the torque of the 300 I6 would sure make an improvement. __________________ *Winners NEVER Quit , Quitters NEVER Win !!!*

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08-30-2009, 09:46 AM	#2
bradrhale Senior Moderator Join Date: Apr 2006 Location: Texas Posts: 8,025	which 351?? funny you mention this swap. very few people out there that is willing to trade out the bullet proof 300 for a 351 unless they have something hot going back in.

08-30-2009, 07:51 PM	#3
caseih Junior Member Join Date: Jul 2009 Location: the cove pa Posts: 4	i was gunna put a windsor in it. well the reason im looking to swap is because the l6 isnt cutting it for towing. cant really haul a skidloader to well with and other farm equipment. i though about just buyin another truck. but cant really afford it

08-31-2009, 11:37 PM	#4
dyoyo Junior Member Join Date: May 2009 Location: maypearl,tx[30yrs] Posts: 2	hey caseih: dyoyo in texas here . idid this swap in an 82 witch is the same deal you need the motor mount towers for a 302/351, motor mounts also. you will need the v/8 fly wheel &correct oil pan & OIL PUMP PICK UP THE CLUTCH&TRANS. BOLT UP OK ALSO NEED EXHUSTT MANIFOLDS&CORECT RADIATOR YOUWILL ALSO NEED THE WIREING&ECM UNIT. HOPE THIS HELPS GET YOU STARTED. THIS WAS A GREAT SWAP FOR ME & EASY BOLT IN. REGARDS DYOYO

09-02-2009, 07:39 PM	#7
caseih Junior Member Join Date: Jul 2009 Location: the cove pa Posts: 4	yea i like the idea of regearin it. alot less headache. and for the shape of the motor it just turned over to 133000.so id say the motors still in good shape sense its a 300. i just figured its pretty hard on it pullin skidloaders all the time and hay wagons and stuff like that. ive been thinking about it and i might just try an find another truck with a 351 to run back an forth between the barn and keep this truck nice. plus haulin the cow trailer with 3 cows it kinda lugs down a bit up over the hills out here. it only to 25- 35 over the hills out here unless i really beat on it.

09-03-2009, 07:01 AM	#8
bradrhale Senior Moderator Join Date: Apr 2006 Location: Texas Posts: 8,025	now that i look back, we may haved jumped the gun here. he never did say which 351 he is wanting to go with. there is a good differance in a windsor and clev.

09-03-2009, 10:46 AM	#10
bradrhale Senior Moderator Join Date: Apr 2006 Location: Texas Posts: 8,025	no, the clevs didnt have FI back then but who says you cant fabricate a way to do it. really dont know what i would choose between a 300 and 351 windsor. both haev advantages.