The latest batch of 23" Gen II EDGYs are complete and shipping started this week. Heads will be shipped in the order of when full payment was received. There are still a few of you who paid a deposit and have not responded to my request asking for the balance. Please check your email for instructions on how to do so. Thank you for your orders!
I typically over-order from the foundry, understanding that there may be rejects if we find issues when the machining begins. I am glad to say we only had two rejects from this last batch, which is outstanding! Earl used to have a reject rate of almost 25% with the foundry that he was using, so needless to say, I am really pleased with my one-on-one relationship with them. That also means that there might well be a few heads available for sale in the upcoming months. These may be the last EDGY heads ever, so if you have missed out in the past, make sure you do not drop the ball this time.
Speaking of which, now that there seems to be a little light at the end of the Pandemic Tunnel, I hope to be able to start meeting with the foundry and their pattern maker in L.A., and my flow bench R&D guy in Santa Maria again soon. We have been working behind the scenes for the past year discussing my goal of creating a complete Gen III head, intake, header, and cam package designed, engineered, and optimized specifically Mopar six-cylinder engines.
The facts are that internal combustion engine and fuel technology has evolved greatly since these engines were designed back in the 1930s, yet many cam grinds and combustion chambers are still holdovers from this era. When we started our Bonneville Landspeed Racing program back in 2007, we looked at how the guys who had been racing Ford four-bangers had been building their engines for decades and realized they were repeating methods that had not really evolved much since with first Speedweek in 1948. We called guys like Art Chrisman, Mike Stewart, H&H flatheads, and asked for advice. We heard things like, "you won't see any more power running 10:1 compression than you will running 8.8:1", or "I've tried everything, and you can't run more than 24 degrees of timing", or my favorite, "You MUST relieve the block". Thankfully, Tony, Chris and I are not very good at taking can't for an answer, and our first records in 2009 obliterated the long-held records by nearly 30% (from 96.8 to 127 MPH), using...
11.2:1 compression, 28 degrees of timing, and an un-relieved block.
Anyway, this next step is an extremely intensive one. Like we did with our Bonneville engine, we will take a sawed-up 230 block and stock and aftermarket cylinder heads to our flow expert and try various combustion chamber designs and port modifications to optimize flow and combustion. All of this data gets thrown into a computer program that then spits out optimum intake runner and plenum length, size, and taper, header tube and collector length and diameter, optimal ignition timing curve, and how different cam grinds with effect the torque and horsepower curves.
Since all of that is all theoretical, we will then have to create the patterns for casting, make a few prototype parts, and take them back to the flow bench to see how we did. Modifications to the patterns will be made, and then rinse and repeat, rinse, and repeat.
So, the bad news is that there will be no new parts for probably a year or so, but the good news is when they are ready for sale, they will be proven.
Because after all, "Without Data, It's Just Hearsay"
Keep the rubber on the road, and your chin up!
Pedro, Tony, and Chris aka The Montana Dodge Boys
Thanks to everyone who pre-ordered a 23" EDGY head. The heads are currently getting CNC machined by the students of the Skills USA shop program in Winnett, Montana. They then travel to another Montana Shop to be tapped, and yet another to be finish surfaced, cleaned, and inspected. At this point I anticipate them shipping around the end of January. Thank you for your patience and support during these challenging times! Happy Holidays!
I found six pairs of new 23" sidecovers in my storage unit! These are very high quality and heavy. with CNC machined gasket surfaces and fins. Cast and machined in the USA. Discoloration seen in photo will be removed before I shop them. Once they're gone, they're gone!
That's all folks!
We are officially sold out of EDGY heads! If you do not receive your order within the next week or so, please email me at firstname.lastname@example.org.
Pedro started a new job as a Bonneville race team manager/crew chief, so won't be doing any new flathead six projects for at least a year, although the stock appearing high-compression "Sleeper Head" is progressing and will be available this fall.
If you need a cam regrind, contact Earl Edgerton directly at 707-494-9645.
Our machinist/engine builder Tony Smith started a new job as the head machinist at a company that supports the aerospace industry. He is still involved in vintage performance engine work on the side and is always will to offer sage advice and wisdom on building a hot motor. He can be reached at email@example.com.
Thank you for your support!
Pedro, Tony, and the Montana Dodge Boys
I just added the last twenty EDGY heads for sale! These will most likely be the last EDGYs ever produced so if you want one, do it now! PLEASE understand that free shipping is only on US orders. International orders must pay actual shipping fees, taxes, and tariffs. Look into the BEFORE you order. The last one sent to Australia has over $400 in fees!
A few 25" will be listed later this week. Thanks for your support!
Holes have been tapped and the heads are at the machine shop! The final steps are finish surfacing the gasket surface and a thorough cleaning. It appears that twenty-three 23" and five 25" are good to sell (meaning no flaws or porosity) and I will be posting them for sale very soon, possibly the middle of next week. It will take an additional two weeks for packaging and shipping.
As a reminder, these will be the last of the EDGY heads for the foreseeable future, as our efforts are going to turn back to our Bonneville Racing for the next couple of years!
We are devastated to report that Santa spent a little too much time with the Egg Nog and the Naughty Elf instead of the milling machine. As hoped, the final batch of EDGY heads is still in Montana awaiting final machining. We Elves seriously hope to have them available by the end of January. The bright side is that we will be shipping them straight from Montana so it'll save you from having to pay sales tax. Stay tuned to this site and Facebook for additional information!
In order to simplify the camshaft ordering process, we have revised the procedure. No need to click or buy anything off our page, please just follow the new instructions below. -Thank you!
What will probably be the final (at least for the foreseeable future) batch of twenty-four EDGY 23" heads has been cast. They still need to be heat treated and shotpeened before I can pick them up at the foundry in L.A. I hope to be able to do so by the end of the month. They will still need to be machined and surfaced, but I still anticipate them being ready for sale by the end of December, just in time for Santa.
I am not accepting pre-orders because it is inevitable that some of the castings have porosity issues that cannot be discovered until machined, at which point the bad castings are returned to the foundry for credit, meaning the final number will most-likely be less than the 24 cast.
Please stay posted to the website and/or Facebook page for updates.
Thank you, Pedro
Unfortunately, most of the last batch of heads that were cast had some minor porosity issues. The problem is that these flaws do not appear until the final surfacing hone, right when we expect to ship them!
While I suppose many wouldn't sweat it, it's a big deal to us, so we returned thirteen heads to the foundry for replacement. I've met with the foundry twice, as well as a third party casting expert to try to identify the problem. We determined that since it occurred at the point of greatest density, the location of the vents on the pattern was the culprit.
The pattern has now been modified to place the vents over the areas of highest density, which will allow access to draw to more molten aluminum as the head cools and shrinks. We are confident that this will fully address the issue.
What does this mean to you? Well, it means that if you haven't received your pre-ordered 23 or 25" head yet, you will have to patiently wait until mid-November. If you cannot wait that long, please feel free to email me at firstname.lastname@example.org and I will kindly refund your payment. I have also removed the ability to pre-order until we receive the new heads and are 100 percent confident that the problem has been solved.
Our apologies for the inconvenience, but providing the highest-quality, 100% USA designed, cast, and machined pure-ingot A356, small-batch cast parts isn't always a walk in the park.
If it were easy...