difference in blocks?

[pit viper]

I did a search, but couldn't find what I was looking for.

What's the differences in the short blocks between the 2.7T and the 2.8?

[audirs]

check this thread out in b5 a4 forum (same 2.8 in the a6)

http://www.audizine.com/forum/showthread.php?t=233692

[pit viper]

check this thread out in b5 a4 forum (same 2.8 in the a6)

http://www.audizine.com/forum/showthread.php?t=233692

Thanks! There's some great info in that thread. Mainly:

the 2.8 and 2.7 crank and rod part numbers are the same. That means that 2.8s have forged cranks and rods. The s4 bore is 80.5mm, if you bore a 2.7 block 60 over it becomes 82.5mm, Which is a 2.8's standard bore size. If you order 82.5mm s4 pistons, the comp ratio will be lower than a 2.8's since they will be meant for the s4, and they will drop right into a 2.8, no drama. Happy boosting

Think about all the differences here though,

1. No Oil squirters in the 2.8
2. Your pan is not tapped for return lines (might want to get an S4 pan)
3. You dont have coolant feeds or returns either
4. The S4 has 2 EGT sensors in the manifolds and 4 02 sensors (does the 2.8 have them also?)
5. if your pulling the pistons out, slap some rods in there too

Also, it sounds like the 2.8 heads are a good swap onto a 2.7.