Fatjon_a6

I have a 1999 audi a6 2.8 and I want to know if i could fit a 1999 audi a6 2.7 header in my 2.8 engine

joshe8695@yahoo.com

Really???? Sure, just pop it right in

Just Me

is this a joke?

nm3210

I assume it's a joke, but both the 2.8 and 2.7 are from the same block, aren't they? I thought the 2.8 was just bored out more giving a slightly higher displacement. I don't remember where I heard this so correct me if i'm wrong!

Just Me

No. the joke would be, as i see it, that the 2.7 is a bi-turbo design in which the exhaust manifold feeds to the turbo housing - which doesn't exist in the normally aspirated 2.8. While i have nto traced them side by side, they should be totally different.

The 2.8 is not bored out. It is the original. The 2.7 is de-bored, and changed in about 100 ways, to make a far more robust lower end. forged cranks, under-piston oil sprays, larger sumps, etc. etc. This allows the 2.7 to sustain the pressure and the power oftwo turbos, which, in some guises (like RS4) produced some 400+ hp where the 2.8 began life at 172.

G

nm3210

Thanks for clearing that up! I was never trying to imply that you could ever just swap engine components from a 2.7 to a 2.8; i was just trying to figure out the block situation.

Just Me

but fatjona6 was......

Fatjon_a6

see i wasnt sure if it was true, somebody was telling me that i could, but i didnt believe him thats y i asked, thanks for the info.