[Zenmervolt]

Do the 4.6 and the 5.4 modular engines share a block? I remember seeing that they share the same bore, then would it be as simple as a 5.4 crank and sump with a tune to make a 5.4 litre Mustang GT?

I'm thinking that there has to be some reason this wouldn't work or it would be a relatively common mod.

Just playing around in my mind.

[GTRaptor]

The max stroke you can get from a 4.6 block is 3.75'', and the 5.4 crank is 4.16".
Most 4.6 stroker kits use offset grind GT or Cobra cranks.

[Zenmervolt]

Originally Posted by GTRaptor

The max stroke you can get from a 4.6 block is 3.75'', and the 5.4 crank is 4.16".
Most 4.6 stroker kits use offset grind GT or Cobra cranks.

Thanks! I knew it couldn't be as simple as it seemed on paper.