When the XU1 was introduced the engine blocks had extra webbing around the rear main. What I was wondering was whether this modification was carried over into all six cylinder blocks after the introduction of the XU1?. When the L34 was introduced it also had a number of modifications to the block which were carried over into all 308 blocks made after that so I thought GMH may have done this after the XU1 as well. I could go and have a look at one myself if I only knew somebody that had a six cylinder Holden.
CK.
Edited by ck1971, 08 February 2007 - 04:56 PM.