Quote:
Originally Posted by BigDan
^ I believe you, its just sounds like it might be a durability issue for the guys that push them over 800whp and definitely for the 1,000hp Hellion TT owners. I hope I'm wrong but like you said before this may be the end of an era.
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I did some bore and stroke experiments with the 5.0 and 5.4 earlier.
The 5.4 uses a 3.55 bore and the 5.0 uses a 3.63. The maximum the 5.4 can be taken out is 3.70 only if the aluminum is used (so I heard), I used a 5.4 rod (4.165) in both simulations. Both 5.0 and 5.4 would need a bore of 3.661 (5.753 liter) to 3.667 (5.776 liter) and remain a 351 ci.
Now, that is only .030 over for the 5.0 and .
110 over in the 5.4. Boring the engines looks extremely bad in the 5.4 engine but if the plasma transferred wire arc process is used it looks more favorable in the 5.0 with the extra aluminum when the iron cylinder liners are not used.
I think that a bored 5.4 to 5.8 liters is almost impossible, even if it was, the engine would be garbage. The 5.0 using the 5.4's, 4.165" rods and a .033 over bore to 3.663 would make it a 5.753 liter (5.8) or 351.06 ci.
There are already pistons available for the Coyote measuring a 3.66" bore. I also believe the long stroke 5.0 would use the 5.4's forged crank along with the connecting rods so that is good news to me. The only thing completely new in the engine would be the 3.66" pistons.