Argo is right. I think the reason people associate OHC with high winding engines is that if you do want a high winding engine, and ovehead cam is much better as you are not slinging all those pushrods and rockers around at such high rpm. OHC basically performs much better at very high rpms. At low rpm there is some efficiency advantage to OHC, but IMO not enought to warrant OHC in a grunt motor.

 

One huge advantage to the DOHC design is that it facilitates variable cam phasing technologies of the sort used to broaden the torque curve of an engine while keeping emissions down. That allows you to have a clean-burning engine that is both a grunt motor and a high rpm screamer, and that's not a bad thing to have if you ask me.

 

The best thing Ford could have done is steal some plays from the Chevy and Honda playbooks. 1) lengthen stroke and downsize bore. This has the advantage of cleaner combustion, especially if the ring lands were moved closer to the crown of the piston, and the pistons were treated with a ceramic, anti-heat, and anti-friction high performance coating. 2) Eliminate the difference in cooling and further reduce emissions by reverse flow cooling. Allows more compression and a warmer block, reducing emissions and detonation sensitivity. 3) DOHC and 4 valves per cylinder (to make up for the reduced breathing capacity of the smaller bore), with Variable Valve timing, to give the yuppies the horsepower they so desperately want and retain that low end grunt we real truckers need. 4) Convert (finally) to a crossflow setup, so exhaust heat does not contaminate the inlet charge. Leave her all iron for durability, and there you have it Ladies and Gentlemen, the Gen II 4.9L BB6. Hooah.

 

amen bother! preach on!

 

I think ford should make a 300 i6 diesel. it would have good torque and we know how tough our 4.9's are.

 

Inline 6 forever!

I had a 1992 F-150 4x4 with a 300-great truck and good mileage approx 18. Not to mention low end power. Took it off the road in July to make way for my new F-150 Heritage 4x4 with a 4.2L. What a gas guzzling piece of crap-3 mpg less than the old six and the only way to get power is to wind it's guts out.

Fast forward to last week-totaled the Heritage. Sold my 1992 the DAY BEFORE I wrecked my 99. Bought my "new" 1994 4x4 with the 6 last night-already like it better!

 

Ford seriously needs to bring back the big six, or develop a new "modular" six. There really isn't a replacement that will equal it unless you go with the Triton 5.4.. Thats the only thing that will rival the old six.

Twas sad to see Ford to let an old standby go like that...

 

Finally a thread that speaks like I think about low end torque. These new motors don't have any low end torque. I'm tired of driving my trusty old '79 Bronco to work with the low end torquey 400 and having to drive my company truck 2000 f-150 w/ the 4.6 all day. Man that 2000 screams to unbelievable rpm's up hills with just a trailer and a lawn mower! Definitely not ideal for a truck. Sure the motor will probably handle it for these modular motors seem pretty stout, but I don't know if the tranny can handle all this shifting reliably for hundreds of thousands of miles. I don't like any of the new stuff. Long live the torquey 460's, 400's, and 300's. I want my next truck to be a 68-72 f-100 or f250 w/ a 300! If you wanna go fast and have hp, get a car -- If you want some serious pullage, get a truck with the old low rpm torquey motors! I sure wish the manufacturers would go by this rule.

 

One of the sad things about the modular motors is their incredible lack of low end grunt. (Mustang people have had this complaint since 96 when the 'Stang went modular). How bout this????

An inline 5???

Use the v10 as a basis. the valve train is there, so are the cams. just a new block and crank and a whole lot of other design "issues" that need to be dealt with..

But you get the point...

 

I see the fact is ford just like every other car manufacture cares about sales. and boastin horsepower in magazines and TV is all the every day person cares about. basically the averadge person would get a V-8 in a truck because they think its got more *****. only people like us who know what were talking about know how good the 300 is. even though i dont like admiting it, I wasn't happy when i got my truck cause i popped the the hood and saw a inline six. i wanted a 302 just so i could chop of the muffler and make it loud. Then I read the inline 6 forums on this website I realized how lucky i was to get a 88 f150 with a good interior, a great condition body and the best yet underrated to most- inline 6, for 800 bucks. ford wont bring it back since the horse power isn't the best, and most dont realize what a motor the 300 is,most people care about horse power, and don't now what torque is. In my opinion, ford should make a TRITON 300, now that sounds mean, and they could brag about durability and torque on TV and in magazine ads. The least they could do is make it and option for a year just to see how it goes.

 

Here's the problem. In the old days pickups were bought mostly by farmers, contractors, and sportsmen (rednecks too). All these folks highly valued low end grunt motors. But because the yuppies decided it was stylish to drive trucks the sport utiltiy vehicle went over to style followed by the pickup truck. Of course, style attracted these folks, but to keep them on the hook the auto companies had to put automotive type engines in the trucks so the yuppies could stay in front of the pack on the road. So the folks the pickup truck was meant for lose.

The only positive thing about it is now you can have a pickup and few people ask you to help them move because of it. When I was 20 years old I got my first F100 (yep, a 300 straight six!) and few people drove pickups back then, so suddenly you had all kinds of friends when people wanted something moved.

 

ford is using the inline 6 again... CHEERS....
the car its going in is gay... BOOOOO!!!!
its going in a XR6t... rip of an elcamino...

http://www.autospeed.com/cms/A_2311/article.html

 

Aussies are so lucky, they've had the 6 down there for forever it seems.

They get all the goodies, turbos...etc. They even still get a falcon...

1000hp...thats nice...aught to motivate anything nicely.

 

Im telling you guys, the TRITON 300 would be a good mean name for the 4.9, plus ford could put a newer higher tech cam and crank and a better head, and the 300 would be a stout performer.

 

Agreed... but alas, unlikely. They aren't smart enough to realize how good it would be.