300 vs. 351

[Big_Country.]

Right now i have a 300 in my truck but im trying to decide wether to rebuild the one i have or just buy a 351 and rebiuld it and drop that in my truck i like the low end in the 300 but i could use more horse power runnin my 38.5's. What do you guys think i should do?

 

[Evan's f250]

I think it would be a good idea. It would help pull those tires. 351 windsor or what?

 

[FordF-SuperDuty]

What transmission do you have?

 

[O'Rattlecan]

All things being equal the 351 is a better performing engine. The 300 might have it beat on toughness and reliability, but if I were turning 38's I wouldn't go with anything but the 351w. Throw some decent heads on there, cam it sort of mildly and get 300 hp out of it.

Ryan

 

[Beach66Bum]

and use a T-18 or T-19 manual trans with 4.10's

 

[flareside_thunder]

Windsor hands down.....where are you at here in Florida?

 

[Big_Country.]

Im in Central Florida in the Ocala area for flareside. And i have a 4 speed, im not sure exactly what kind it is though.

 

[LEB Ben]

These types of questions, you have to factor in the point of diminishing return. I love the 300, but to get the same results out of a 300 as a mildly built 351...your wallet will be alot lighter.


Side question though...what are you geared??? If you're not geared properly for your application, a re-gear could be a quick cheat and offset the 300's shortfalls.

 

[Beach66Bum]

These types of questions, you have to factor in the point of diminishing return. I love the 300, but to get the same results out of a 300 as a mildly built 351...your wallet will be alot lighter.


Side question though...what are you geared??? If you're not geared properly for your application, a re-gear could be a quick cheat and offset the 300's shortfalls.

Ask any off roader, it's all in the gears. Look at those Toy's that are running big tires with 4 cylinders!

 

[flareside_thunder]

Ah sweet, I'm in Umatilla. I agree with the gears man. Definitely would be an easy way to cheat. You get the right gears, and that 300 would be a torquey little trail rider.

 

[nobodyspecial]

Its not cheating, its just called properly setting up your vehicle.

 

[primetime]

Throw a turbo at it. Then the ole 300 will have enough hooch!

 

[Beach66Bum]

Its not cheating, its just called properly setting up your vehicle.

I agree. if you want a trail rig, then it's in the gears. If you want all out "drag" performance then nothing beats cubic inches!

 

[LEB Ben]

If you want all out "drag" performance then nothing beats cubic inches!

Well...you still need to be geared properly for that as well.

 

[nobodyspecial]

^^^ Exactly. No matter what, the gearing is extremely important.

 

[optikalillushun]

38.5s is a lot of tire for either engine with stock gears...my friend has a 95 F250 with a 351/ZF/4:10s and runs 40"s and its aqaquate but dogs a lot on hills.

Gotta weigh ur options here...first is there anything wrong with ur 300? Second is cost, to buy and at the very least freshen up n swap a 351 is gunna be like $1500-2000 depending how far u go into it. A gear swap will be at least $500-1000 depending if u add a traction aid and labor rates. Plus a gear swap will be less downtime and if u decide the 300 still isnt enough it opens the doors for a 351 later.

For gearing i would look for 4.88s at the least and maybe 5.13s if ur not gunna beat the snot out of it (5.13s has a really small pinion gear).