thoughts...
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Fleet Mechanic
Joined: Aug 2006
Posts: 1,684
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From: Phoenix, AZ
thoughts...
I was trying to think of ford's track record with regards to head/intake design.
in 1993 they introduced the mod motors in the smaller production lines; in 1996 they went full blown with the mustang, 1997 f150.
3 (or 6 depending which way you think about it) years later, in 1999, the mustang gets PI heads, 40hp gain, lil' torque. f150 gets the pi heads again, 1 year later, in 2000.
4 years later the f150 gets the new 3v heads first, albeit the mustang is shortly after with the 2005 models hitting dealerships as soon as april 04.
It's been 4 years since, and it looks like we're due for a new revised head design. I'm guessing if that is to happen, the 3v PI, or whatever they'd be called, and if the gain is similar, we'd have a relatively popular upgrade for the rest of us (kinda like how the pi heads are for 96-98 mustangs). this is all speculation, of course, i'm just trying to establish a pattern to ford's product development.
Now if only the hurricane/boss/whatever next generation motors will have the major components interchangeable with the mod motors - aka same block mounting points, same flywheel/bellhousings, so that swaps in mustangs/f series are as easy as they are today between the 4.6 and 5.4, we'd all be happy campers, I bet...
in 1993 they introduced the mod motors in the smaller production lines; in 1996 they went full blown with the mustang, 1997 f150.
3 (or 6 depending which way you think about it) years later, in 1999, the mustang gets PI heads, 40hp gain, lil' torque. f150 gets the pi heads again, 1 year later, in 2000.
4 years later the f150 gets the new 3v heads first, albeit the mustang is shortly after with the 2005 models hitting dealerships as soon as april 04.
It's been 4 years since, and it looks like we're due for a new revised head design. I'm guessing if that is to happen, the 3v PI, or whatever they'd be called, and if the gain is similar, we'd have a relatively popular upgrade for the rest of us (kinda like how the pi heads are for 96-98 mustangs). this is all speculation, of course, i'm just trying to establish a pattern to ford's product development.
Now if only the hurricane/boss/whatever next generation motors will have the major components interchangeable with the mod motors - aka same block mounting points, same flywheel/bellhousings, so that swaps in mustangs/f series are as easy as they are today between the 4.6 and 5.4, we'd all be happy campers, I bet...
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Joined: Dec 2001
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From: Louisville,Ky.
Actually the 4.6L has been in Large cars (Crown Vic, Town Car, Marquis) since 91.
The picture of the test mule in the Roush drag car has a different looking plug placement and valve cover if I recall correctly. Also, the BOSS engine is going to have a larger bore spacing, so the cylinders are going to be farther apart which would make the heads unusable on the current modular block.
The picture of the test mule in the Roush drag car has a different looking plug placement and valve cover if I recall correctly. Also, the BOSS engine is going to have a larger bore spacing, so the cylinders are going to be farther apart which would make the heads unusable on the current modular block.
