The terms "small block" and "big block" don't really apply to Ford V8's since the beginning of the modular family.

The 4.6 Triton, 5.4 Triton, 5.0 Coyote, 5.8 Trinity, and 6.2 Boss are all built with essentially the same block.

 

Hey, there is a guy on the forum who wants to sell his F150 that he transplanted a V10 into. There you go!

 

How is that? Is it the same block, just larger for the 5.8 and 6.2?

I hope ishootstuff just keeps that V10!

 

It is the same block, just different bores, strokes, and bore spacings.

 

But if the 5.4 has trouble fitting, is there enough room to safely pack 6.2 into it? It isn't that much of an increase in displacement, but every addition to the bore and stroke essentially weakens the block. Obviously I'm not an engine builder, but if someone were to build a 5.4 from the ground up with brand new everything, why not just cut it up to model a 6.2 (or bigger) and have it be as "safe/reliable" as the OEM 6.2? I'm asking only to learn and/or understand.

I also ask this assuming that the bore spacing isn't all that different, because I figure the 5.4 with a .030 over having too thin of sidewalls having the sidewalls too thin even on the outermost walls as well. If this is not the case, I guess the 6.2 could have them spread out differently so as to have equal amounts of metal between the outermost walls and the walls between each chamber.

 

X2 on these questions, I like where its going

 

4.6/5.0/5.4/5.8 bore spacing is 100mm. 6.2 bore spacing is 115mm.

4.6/5.0 deck height is 227mm. 5.4/5.8 deck height is 256mm. 6.2 deck height is 239mm.

I *DID* find out that the 6.2 block is LONGER than the 4.6-5.8 modular family, that does make sense due to the wider bore spacings. So - I guess you could in fact call the 4.6-5.8 a "small" block and the 6.2 a "big" block even though they are all part of the modular family.

 

I guess those GT500s are running thin walls then, huh. That's good info though and makes sense for the 6.2 block to be longer to allow for the increased bore spacing. Thank you.

I wonder how the deck height was increased for the 5.4 and 5.8?

 

like ported stock aluminum heads?

true

you don't get out much do you?? they are al over the place