[quote=“PDS” post=71778]My advice - learn how to shift before spending $300 on HD rockers. You won’t need em :unsure:
Not trying to start a war… But is pisses me off to no end to see parts listed as Spec E30 legal and then the description goes on to detail illegal mods being done for those insignificant last couple of HP.
Also, there’s lots of parts that are servicable and don’t need replacing in a good engine. Don’t be suckered into the trap of “everything must be replaced - renewed”
But what do I know. That extra 1/10 of a hp might just get you on the podium[/quote]
The price difference between the HD rockers and stock rockers is small so why would you use the stock rockers now that HD rockers are legal?
I guess if you are doing a quick paddock fix only replacing the one broken rocker is the best option, but if the head is coming off it is best to just replace them all. I’m planning to reuse the old valves, and valve springs on the head I’m doing right now. It will be getting new valve seals, a valve grind, and maybe new guides if it needs them. They are also looking at the old cam and hopefully I can reuse that too. So yes you can get by without replacing everything. My machine shop costs are pretty cheap so I decided against purchasing a rebuilt head, but most machine shop cost will be around $300-$400. Then add another $300 for rockers, another $150 for the cam if it is needed, $50 for valve guides and you have quickly approached that $900 price tag of a ready to install head.
So for the OP the Myster-E head is a good option. I sent them a pm on Bimmerforums before I started my little project and seriously considered it.