Just received my April issue of Hot Rod Mag.,has an article on Fords new 5.0 Modular motor that's replacing the 4.6,wouldn't be a big deal but Ford saw fit to use the Y-Block firing order on their new 5.0 that's rated at 412HP/385 Torque.Wonder what this babys going to sound like,a super healthy 312? Kid

When all the scrub guys started going with the Y firing order (the 4/7 swap) they say it is good for 10 more HP in the high rpm range, it just takes the slow learners a little longer than the rest of us.

   God Bless.   Tim                           http://yblockguy.com/

350ci Y-Block FED "Elwood", 301ci Y-Block Unibody LSR "Jake", 312ci Y-Block '58 F-100, 338ci Y-Block powered Model A Tudor

tim@yblockguy.com  Visalia, California    Just west of the Sequoias

Does that mean if we reversed the 4/7 swap our Y-blocks would all begin to have unexplainable oil leaks? (I can't really make any jokes about cracked heads, can I)

Todd in Central California...about half way between Fresno and Sacramento

1956 Thunderbird - 1960 F-100 - 1961 Starliner - 1961 Imperial

I noticed how smooth the Y-Block sounds, no matter what it's doing. I'm coming to think of it as a more suave windsor



Is this with the new Mod engines, or all Mod eights?



...and now a crazy plan of converting the Y-Block to DOHC using Mod V8 parts pops into my mind...

+-+-+-+



People should not be afraid of their government, a government should be afraid of the people.

--Alan Moore

The flattie and the Y-block have used the same firing order - and now that new 5.0L twin cam motor will get it too. Flatheads used it because it was easier on crankshafts (fewer mains in the block) - made lower "mean" torsional stresses (I think). That would equate to lower torsional deflections - and a stiffer mechanical system harmonicwise.

It has to do with which cylinders are "making power" along the length of the shaft - and the placement of the ones "consuming power" (compressing air). Using the example of a (very) simple two cylinder engine - part of the power made by each cylinder is going to be used compressing the other. On the v8 it isn't quite that simple - but that's the principle anyway.

I never could figure out why Ford didn't stick with that design all the way through - there must have been some cost reason.....

 
 Steve Metzger       Tucson, Arizona

I think the 5.0 Cammer will be a nice modern engine to swap into an older ride.



http://bradbarnett.net/mustangs/shows/sema03/mustangspecs.htm


Lawrenceville, GA

I always assumed the reason that Ford changed the order was that it made more sense with the staggered exhaust ports and stacked intake ports, but not so much with even exhaust and intake like the Windsor.

+-+-+-+



People should not be afraid of their government, a government should be afraid of the people.

--Alan Moore

The Y-Block firing order is the same as the original Flat head V-8. It's likely that the later engineering group chose the regular Windsor firing order (unfortunately) because G.M.'s SBC engine was using it.

Paul

Isn't the Y firing order the same as the BB chevy?

+-+-+-+



People should not be afraid of their government, a government should be afraid of the people.

--Alan Moore

Wash your mouth out with soap!!

  AussieBill            YYYY    Forever Y Block     YYYY

 Down Under, Australia