Hi Mark, DRD looks like they have a lot of interesting type 1 heads. http://www.drdracingheads.com/xcart/home.php <http://www.drdracingheads.com/xcart/home.php>
http://www.drdracingheads.com/xcart/OEM-Big-Valved-NON-Ported-Type-1-heads.html <http://www.drdracingheads.com/xcart/OEM-Big-Valved-NON-Ported-Type-1-heads.html> Which did you go with? I didn?t see a "OEM 43? among them, but I was probably looking in the wrong place. Worse, I couldn?t find much in the way of pictures of the heads. Please point us in the right direction. Cheers, Owen > On Jun 24, 2016, at 9:00 AM, krnet-request at list.krnet.org wrote: > > Date: Thu, 23 Jun 2016 17:22:17 -0500 > From: Mark Langford <ml at n56ml.com <mailto:ml at n56ml.com>> > To: KRnet <krnet at list.krnet.org <mailto:krnet at list.krnet.org>> > Subject: Re: KR> VW heads > Message-ID: <67fc476f-1b2a-f46b-5abe-78cd21833152 at n56ml.com > <mailto:67fc476f-1b2a-f46b-5abe-78cd21833152 at n56ml.com>> > Content-Type: text/plain; charset="windows-1252"; Format="flowed" > > I called Revmaster Tuesday, but got no answer. Today was better, and I > talked to a guy about their heads, hoping to find some with nice air > passages as well as "advanced" valve seats. The photo on Revmaster > Aviation's website only shows the chamber side, and their website in > general had lots of issues, such as an inop price list. He told me to > go look at the photos on the automotive website, since they were the > same RM-049 heads for either application. After seeing that photo, I > was not impressed that the passages are much better than what has become > normal for VW head castings, although the castings are clearly not stock > VW derived. He also said their seat material was something like "latest > technology that others are also using, not just cast iron", for what > that's worth. > > I've been conversing with DRD Racing for a few days, and their > Chinese-derived heads do indeed have large cooling passages. Given the > overall quality of these castings, I'm going to ASSume that they > wouldn't install crappy seats in an otherwise decent looking head, so > I've ordered a pair, especially after seeing a photo that DRD provided > today. I'll update y'all when I have a pair on the work bench and can > get better photos, but the best I can do for a comparison at this point > is the two photos below (or enclosed, I hope) of a Revmaster RM-049 and > the DRD "OEM 43" head passages. Cooling trumps seat life, at this point > in my life. More after I do some testing on these heads. This may prove > to be a dumb idea, but somebody's got to try them out... > > > Mark Langford > ML at N56ML.com <mailto:ML at n56ml.com> > http://www.n56ml.com <http://www.n56ml.com/> > > -------------- next part --------------
