This was kind of an odd question so I wansn't sure where to put it. Feel free to move it. I was just curious as the the similarities between a SBC and the 4.9 PFI caddilac engine. Are there any interchangeable parts at all? I'm talking anything, cam, rockers, pistons, crank. Do they have completely different bolt patterns? Thanks in advance for any info you can drop on the 4.9. I know there are a few types of SBC, I'm just looking to see if parts from any of them will fit the 4.9.

 

Ive done a few waterpumps on them, havent tore into one really far yet. I dont see anything interchangeable on one but there is a couple people who run them in 4th gens. I do think it has a standard bolt pattern.

 

Nothing. Not even sure the tranny bolts up directly, I think the people that are using them are using an adapter plate of some sort.

 

For a tranny they use a 60* V6 Th700R4 tranny. All of the bolts fit except i belive one which needs to be move about 1".