PRODUCT BULLITIN
GM 604 Retrofit Bee-Hive Spring Kit
The “new†GM upgrade keeper and retainer package may have some clearance issues when used with the old style rocker arm.
The old style rocker arm was used on engines built prior to 2010 however could possibly be on any 604 due to replacement of warn or broken parts.
The “old style†rocker can be identified by its thrust washers beside the roller.
New style rockers have a one piece roller that incorporates the alignment of the rocker without thrust washers.
In all cases it is recommended to check for clearance between the rocker and retainer at full lift during installation.
we will have pictures up on the front page of our website ASAP
We want to thank Mike Ingram of Ingram racing engines for bring this to the attention of the racing community.
if you have any questions you can call me at 330-540-7223
Brad
GM 604 Retrofit Bee-Hive Spring Kit
The “new†GM upgrade keeper and retainer package may have some clearance issues when used with the old style rocker arm.
The old style rocker arm was used on engines built prior to 2010 however could possibly be on any 604 due to replacement of warn or broken parts.
The “old style†rocker can be identified by its thrust washers beside the roller.
New style rockers have a one piece roller that incorporates the alignment of the rocker without thrust washers.
In all cases it is recommended to check for clearance between the rocker and retainer at full lift during installation.
we will have pictures up on the front page of our website ASAP
We want to thank Mike Ingram of Ingram racing engines for bring this to the attention of the racing community.
if you have any questions you can call me at 330-540-7223
Brad
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