7 replies to this topic

[Tyre biter]

I am looking at buying a set of B Cast heads - Part No. 92015981.

Both heads have the 'B' welded at the ends but it seems any old Joe could replicate this to pass a set off as Brock heads.

I thought Google would be my friend but I found all sorts of contradicting threads on the internet;

• Some suggest they are genuine B cast heads and other suggest only 92029002 (left hand side) and 92029003 (right hand side) were the genuine article.

• Another post suggested the 92015981 is a VH/VK 'V5H performance head' used in Brock vehicles and Police Packs prior to the B cast heads coming into existence...

Can anyone help with definitive advice as to what these heads (92015981) are please?

Cheers, TB

[TerrA LX]

Holden early model heads
HT-Hg Part number 7449033
HQ Part numder 2812174
HJ-HZ Part number 9936122
Blue commies and WB 9947428
VL Black 9202722
B-cast 92015981
L-34 street 9936482
L-34 Race P16**
VL Group A X-cast heads 92032427

Where did you get this info, HJ and HX-HZ run different heads, sure they wouldn't have the same part numbers.
I would be leaning towards HJ running HQ heads being pre ADR27a.