4.6 compared to 300I6
I love the 300, wish Ford would have kept it or at least redesigned it to compete with the OHC's. It ran forever, even when I was on tough times and couldn't properly maintain it. I'll be forever greatful to that motor, and I'll defend it against the 4.6, but don't dog my 5.4.
I feel the 5.4 is Ford's closest replacement for the 300. Time will tell if lasts as long as the 300...(crossing fingers).I will not defend the 4.6 in a discussion between it and the 300. It's simply a non-purpose built motor that Ford threw in everything they needed a V-8 for. It's there to sell the trucks (and cars) to people who THINK they need a V-8, but don't even know why. The 300 was a truck engine, and acted like it.
-Kerry
There are thousands of people who have traded in their hondas and toyotas for full size pickups. Its their own perogative, im not trying to discourage them or anything. Its just changed the demographics of the full size pickup owner.
I dont very much like the looks of the 97-present half tons, but ive owned 3. Kept thinking it would grow on me, it hasnt. Only one left is the expedition, and it is definitely not impressing me.
If i buy annother newer ford, it will be a superduty. They seem to be the only ones built to be used.
I love fords and always have, but my current GMC is making my recent fords look bad. Hard to defend my fords to my wife, who is a GM fan, when all the fords weve had have been so problematic and the GMC just goes and goes. The GMC is the only one ive ever bought an extended warranty for. And ive never used it.
Sorry about the long post
Tony Warren
Nebraska
I am sort of a new guy here, and don't want to be too argumentative, BUT, the 4.6 produces as much or more torque than the 300 from 1000 rpm on up. (225 at 1000 rpm, 260- something at 2000). Then, it keeps pulling right up past 4500 rpm, which means you can keep it in a lower gear to keep the torque multiplied. For example, 275 torque in 3rd gear is better than 275 torque in 4th gear, final drive being equal.
Somebody said "a truck engine should have pushrods not OHC". why? This is like saying no new magnum will drop a deer like Grandpa's old .303. it is just religious sentiment, loyalty. not scientific.
I have driven both 300 and 4.6 in manual and auto and I do like the 300, it has a real truck engine quality and is confidence inspiring because it seems to say, "I'll never stop". but my point is that the 4.6 will get the job done just as well, and since I have heard no reports of the 4.6 "wearing out" even with tough use, under 200,000 miles, there is no huge difference in durability between these engines.
There is a "religious" following for the 300 I6.
I am sort of a new guy here, and don't want to be too argumentative, BUT, the 4.6 produces as much or more torque than the 300 from 1000 rpm on up. (225 at 1000 rpm, 260- something at 2000). Then, it keeps pulling right up past 4500 rpm, which means you can keep it in a lower gear to keep the torque multiplied. For example, 275 torque in 3rd gear is better than 275 torque in 4th gear, final drive being equal.
Somebody said "a truck engine should have pushrods not OHC". why? This is like saying no new magnum will drop a deer like Grandpa's old .303. it is just religious sentiment, loyalty. not scientific.
I have driven both 300 and 4.6 in manual and auto and I do like the 300, it has a real truck engine quality and is confidence inspiring because it seems to say, "I'll never stop". but my point is that the 4.6 will get the job done just as well, and since I have heard no reports of the 4.6 "wearing out" even with tough use, under 200,000 miles, there is no huge difference in durability between these engines.
I agree with you 100%. The OHC comments never cease to amaze me. Cam placement has NOTHING to do with powerband.
I respect your torque and power numbers argument, it makes logical sense. I do not discount that data, I never have. The mileage... well, when we can post a thread that lasts 5 pages about personal experiences of the 4.6 lasting in excess of 200,000 miles, then it will have attained the same legendary cult status of durability that the 300 has.
Sometimes the argument goes beyond the numbers, though. My signature line below pretty much sums my experience up. I may not be 75 years old and have a lifetime of experience, but I've had a pretty good share. I've either drove, performed maintenance on, ridden in or driven darn near every US sold Ford vehicle from the past 20 years with 4 wheels. You see, it was part of my job -an additional duty- to be in charge of several departmental vehicle pools for the government and private companies through the past 14 years and my family has owned quite a few Fords (I was conceived in a '70 BOSS 302, now that's a story for the kids). I have also driven trucks and cars by various other manufacturers over the years. I have personally driven Ford trucks with the 4.6 and the 300. Differing body styles 1 year apart ('96 F250 w/300 and auto, '97 F150 w/4.6 and auto). The 300 felt like a truck that had the ability to pull its own weight and then some. The 4.6 just didn't feel that way. It drove more like an underpowered sports car. You would figure the 3/4 ton weighed more and was an older vehicle, it should have felt like it...
The comparison goes deeper than two vehicles. I have driven other 4.6 and 300 powered vehicles, so I feel I do have some room for comparison. The 300 always had the feeling of grunt, the 4.6 performed as expected in my dad's Continental and the rental Mustang.
What the numbers say is one thing, what I felt was completely different. The 4.6 felt at home in the cars, but seemed alien in the trucks.
By the way, glad to have you aboard radar ridr... it's always nice to here from any Ford truck owner, no matter what they drive
-Kerry
I think it's more even with a manual. My pal has a 94 300 4x2 5spd, and I have an 03 4.6 4x4 5spd. The seat-of-the-pants feel is almost identical... until you wind it up a bit. and my rig must weigh about 500 lbs more than his. but when I got my truck I was amazed how much that 4.6 felt like his 300. but i would not make the same claim with an auto.
ANYWAY I get your point and appreciate the fact that you have a lot of experience driving different vehicles. Thanks for the info.
radar.
Ford Trucks for Ford Truck Enthusiasts
I owned a Honda Civic into which I transplanted a stock Acura Integra engine. I could race 4.6 and 5.0 Mustangs all day and fininsh within a few tenths. Sure, I had to wind my engine out to 8200 rpm but I got there just as fast even though I only had 170 HP and 135 lbs-ft of torque. What it came down to is the gearing. The Honda's gearing allowed it take full adavantage of the broad, flat torque curve. Obviously if the Honda was geared the same as the Mustang I would have been sucking dust as they passed me.
The torque curve of the 300 is relatively flat and short. It doesn't rev as high or as long as a given 4.6, to make it's power. The 4.6 has a longer and higher torque peak, but perhaps the gears aren't a good enough compensation to take care of this, as both would have 3.55's in an F150 8.8" rear from about '86 on in the lowest ratios. The F250's could have bigger and deeper gears, but the 4.6 wasn't found in the F250 later on. Concentrating on the half ton trucks the computers and trannies come into play. The later versions of the 300, for the most part, had the same transmissions as the 4.6: M5OD manuals (some 300's had ZF's) and AOD-e/ 4R70W automatics . So, the only other option that would have any variance is the tuning. Perhaps the 4.6 (and those with autos) wasn't tuned or programmed to take full advantage of the power output? Just a thought...
-Kerry
Last edited by kspilkinton; Feb 23, 2003 at 01:17 PM.
I don't have any experience with the 4.6Lv8-so any opinion I could offer would be based solely on speculation.
The 4.9 does have a very very narrow powerband that is somewhat lower than most v-8's,the tranny in my truck was the POS Mazda, but at least I had 3.55 rears in it.
I drove a buddy's truck once-he had a 93' F150' it was such a dog-it barely got out of it's own way-like me he got all his power down low,but because it was all gone at highway speeds he was sometimes downshifting to third to get up a 10% grade -EMPTY!Same tranny I had, but mine felt like a light granny compared to his!.....that's pretty bad considering this is the M5od we're talkin' about here.
Turns out he had a -get this....2.73 axle ratio!
I made the mistake of letting him drive my truck-poor guy never felt quite like a man driving his truck anymore-and I thought mine was geared too light!
So I agree with the previous post it, it is definately the gearing.
No DIESEL engine made would be worth crap for pulling with a tranny and rear like that!
Regards.
I currently own one of each, a 300 and a 5.4 S/C. I absolutely love my 300 and will probably never own another truck with a 302 or 351 in it. There is one reason being overlooked that the 300 feels like more of an engine than the 4.6 does in the new body style and that is base vehicle weight. My 01 Lightning weighs 4960 lbs with me in it and 1/4 tank of gas. My 1990 only weighs about 4200 with two full tanks, me and my fiance in it. Both trucks are loaded with PW, PL, PS, etc. The new body style weighs almost half a ton more than the old style from the get go. The way to compare the two engines is to put 800-1000 lbs in the bed of the pre 97 trucks and see which one does better, I think you'll find that the 4.6 does just fine. I would still take my 300 over a 4.6, but my 5.4 with 450hp and 540 ft-lbs makes me forget all about my prized 300.
My '82 weighed in at 4400 lbs with a 6000 GVWR, I have no direct comparison, since I now own a S/C with more options and components. It weighs in at 5100, that's 700 lbs (the s/c weighs 500 lbs by Fords specs, and I have at least 200 lbs worth of undercarriage upgrades over a conventional F150 regular cab).... so I don't think the newer trucks weigh more than the older ones, unless you can prove this by comparing a regular cab to a regular cab with basic components.
-Kerry
I don't think the newer trucks weigh more than the older ones, unless you can prove this by comparing a regular cab to a regular cab with basic components.
-Kerry



