Holdens a little info

[grantg at iname.com]

To put an end to all this I checked part numbers and the bare head assemblys for both RB30E and RB30ET engines carry the same GM part number (which is not suprisingly a Nissan part #), the difference in comp. ratio is attained by different pistons.Both crank and rods are the same in both engines
The rocker covers are grey for the RB30E and red crinkle for the RB30ET

> However, I suppose they could use the same head, only, the non-turbo one
> could be "planed down" in comparison to the turbo one. Of course, the turbo
> head is red, while the normal one is grey (from memory - or perhaps black -
> I haven't taken much notice).

Grant


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