The problem is displacement and engine tuning. It is easier to get more
hp/torque from a larger engine. Cammers are *usually* tuned to take
advantage of "revability". They could also be tuned for torque. A better
Ford comparison would be the 427 vs. 427 SOHC.
They used the same basic block, this cammer engine would rip the tires off
your wheels (if it didn't snap your axles) off the line and keep on going to
statospheric revs.
Chrysler *chose* to make the 4.7 less powerful than the 5.2. And that's why
the 5.2 is a better truck motor.
Dr. Pat
----------
>From: SuperNagz@aol.com
>To: dakota-truck@buffnet.net
>Subject: DML: 4.7L vs. 5.2L settled!
>Date: Mon, Jul 26, 1999, 11:04 PM
>
> 3 words to settle the 4.7L vs. 5.2L debate:
>
> 4.6L vs. 5.0L
>
> I hate to bring up Fords.. but, all in all.. a motor is a motor... more
> specificaly.. a pushrod motor is fairly similiar to another pushrod.. and.. a
> cammer to a cammer (single)
>
> Anyways, Dodge is now doing what Ford did a few years back. (needless to say,
> this is WHY I started buying Dodge)
>
> Pushrods will always be superior to cammers when it comes to heavy
> vehicles/trucks, and/or performance machines.
>
> The Ford 4.6 that replaced the 5.0 was only good for two things... fuel
> economy, and part complexity reduction- Ford replaced nearly all their big
> engines with overhead cammers with many interchangable parts)
> Those two things mentioned above are great for the car company... saves them
> money, and makes them look good on the fuel economy.
>
> When it comes to performance... pushrod will just blow away the cammer that
> replaced it. Gobs of lowend power... and we all know that thats all that
> matters. Who cares if an overhead cammer has say 250 hp at 6,000 rpms...
> think about it.. that engines STILL has to rev across that entire
> underpowered rpm band to get to that high peak rpm.
> On the otherhand... the pushrod monster has instant power off the line...
> sure... a pushrod will run out of steam sooner than the cammer.. but who
> cares, by then, you've shifted to the next gear, and your back at your lower
> rpm/monster power range
>
>
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