You just made ME want to swap to a 351. It's been in the back of my head for a long time.
Darn you!

 

I've always wanted the 351. Don't get me wrong the 4.9 is a great motor, but I'm just looking for some more power if you know what I mean...

are the 4.56 gears good for that engine and zf tranny. I'm just wondering.

 

I know exactly what you mean. I've looked into swapping for a 351 very serious back in the day.

4.56's will be fine with the 351. In fact, they will be better, since the V8 has a much longer power band.

Someone please correct me if I'm wrong. I don't want to tell him they are perfect for the 5.8 with 35's if they aren't. I just don't see how they WON'T work, if he used them with the 300 I6, which we all know doesn't make much power past three grand.

I still say he should see one or two MPG better in some cases.

 

I came to realize a little while back that drinving like a teenager that I am is fun and all, but it puts quite a hole in the wallet. so for the past couple of months I ve been conservative in how I drive. That will carry on the if I do decide to get the 351, but when I'm out with my buddies hittin the mud hole, I want to make sure that i can handle it. The 4.9 I know doesnt like to rev that much and the 5.8 does. I guess what Im Blabbing about is I just want the Power of the 351 V8.

And what kind of mpg do yall think I will be gettin with this setup. doing 65-70 highway and taking it easy in the city.

 

Truck should get mid to high teens milage with the 5.8, and the truck will get a lot dirtier when you hit the mud. 4.56 gears are good as well, works out the same as stock tires with 3.55's.

 

if you go zf tranny you have to find a zf with the proper bell housing (there are 2 different ones for the boig blocks and the small blocks) and you will have to find one for a 4x4 the trannys tail housing is different between the two and in order to keep the 4x4 you have to have the 4x4 tail housing because the 2wd will not mount a married t-case but if you find a zf that has 4x4 tail housing and proper bell housing pattern it will literally bolt right in...just dont take off in first unless you are pulling a very heavy load

i dont know what you are talking about conanski you have seen pics of my truck (the one in my sig for instance) its got a 300 and crappy little 31's on it and i still cant see blue after i go mudding? i LOVE the 300 in the mud because it doesnt need to hit 6000 rpm to sling mud cant wait for 36's those will be fun

EDIT::

see like this...that was after i took it and cleaned the windows and lights to avoid a ticket



and the 300 can rev decently high (plenty high enough to sling mud) without breaking stuff as long as the wheels are spinning freely

 

Depends how you drive what mpgs you get.

The way my friend drives his 351, you can watch the gas gauge move. It had no o/d either though.

I highly doubt the 351 will ever get better gas mileage than the 300. But in certain situations i suppose its possible.

 

I agree with 9.ford.5. Of course, I credit his muddy truck to his mudding skills, though. A lot of it is in the driver. But I think a 300 does just fine. It's no power house and it doesn't like to rev, but in the hands of a good driver, well.. You get a truck that looks a lot like 9.ford.5's!

I'll admit it. I would mount a married tcase. But I'm a horny SOB..


Have you ever heard the fuel mileage argument between the 4.9 and 5.0 guys? The 4.9 guys say it's possible for the 4.9 to get fuel milage IN TOWN because it has more low end torque, and therfore doesn't need as much pedal to get off the line. My thinking is this.

And, I've seen this happen. We had a 305 in the Elky and now we have a 350. They get the same fuel milage (neither of them stock).

I'm just saying it's possible. In some cases, the 300 willl get better fuel mileage. In others, the 351. Now if we were talking stock trucks with 3.55 gears and OE tires, that's different. But we're talking about 35'' tires and 4x4.

 

My 95 351w with E4OD, 3.55's and 31" tires got me 14.3-14.8 mpg mostly highway 65-75mph commuting to work.

 

Not sure if this of any help or is even relevant, but my '91 Crown vic has a 351w in it, along w/ a torque oriented camshaft and lifters and at BEST I MAY be able to attain 12-13 city and 20-23 highway....Given I have crapped, 1/4 tank of fuel and the tires arent deflated.....Ohh yea...the car also weighs in at around 5200lbs BEFORE I get in (I weigh approx. 250-260lbs....


*Note-car has a 2.81 limited slip rear.....

Like I said don't look for it to sip gas like a 300......Just a warning, and also that mileage was with a 2bbl motorcraft carb with the smallest jets available.....And the 351w will give more torque than a 302, thanks to 4" pistons...Just like the 300 has....Only big diffs in the two are piston placement and displacement......

 

your car doesnt weigh 5200 pounds my friend. more like 4000

 

HA! Door sticker says GWR is 5240lbs if I am not mistaken, but it is over the 5k mark....

 

That's the maximum weight of the vehicle with a full load of passengers and cargo, the curb weight of the vehicle empty is around 4000lbs.

 

im glad i convinced you bill. the 351w is my favorite motor next to the 429 BB but those arent real avlable here.

as to the questions from above, yes the power band it has a wider power band than the 300 but after about 3000 rpm the 351 doesnt really make more power stock than it does at 2800 rpm. since i own a 351 i can answer questions if you pm me.

 

That's the stock cam choking the motor off, with the Crane I have it pulls hard all the way to 4500rpm.. and then the stock heads become a bottleneck. Of course both those "issues" are relatively easy to fix with the hugh selection of aftermarket HCI combos that are available for this motor.