![]() |
|
|
|
Registered
|
Some specs needed
Hi, i am rebuilding my 2.7 to 2.7RS specs minus the MFI, using Webers.
Id need the specs of the following: angle for 3-angle valve job valve seat specs valve measurements (tolerance) specs Thanks!
__________________
PCA Member 2009 Audi A3 2.0 Quattro 1978 911 SC Targa |
||
![]() |
|
No Expert
|
valve seat angles: 30,45,75
valve seat specs: 1.5+/-0.1mm contact surface, and 47.5mm valve stem end to shim cavity length valve specs: (head diameter, stem diameter, length) intake: 46+/-0.1mm, 8.97-0.012mm, 114+/-0.1mm exhaust: 40+/-0.1mm, 8.95-0.012mm, 113.5+/-0.1mm I don't have the head margin spec handy.
__________________
-- Last Engine rebuild project, Now a coffee table. -- New engine rebuild project, Alive and well. -- '72 911 Martini RS, '69 911E Targa, a 2004 Cayenne S, and a Miata too... Looking for a Cayman S |
||
![]() |
|