Neat Heads

March 3, 2001

Check out

coatesengine.com

They make rotary valve heads for most engines. These heads eliminate cams and valves. They are much more efficient and easily increase your rpm limit. On most motors, the bottom end can withstand far higher rpms than the valvetrain.

They don't list price on this site, but I'm sure that they aren't cheap.

I remember reading about them 7 or 8 years ago in Hotrod or another magazine and they said that a stock 350 with these heads could easily do 9000 rpm on a regular basis.

(Edited by Friz at 12:01 pm on Mar. 3, 2001)

March 4, 2001

I find it hard to believe that something as revolutionary as this can't get a response from you guys. I think this is the neatest thing going! Or have I missed something and they're pieces of crap?

NeXuS1 · March 4, 2001

i looked at this last night, but off the page there is very little info. i cant tell how it works. and what it takes to get it on a 350.

March 5, 2001

NeXuS1, you're right. That site is very general. I emailed Coates and asked them specifics on cost, performance, availability, tech support, etc. for my rig. I'll let you guys know what they say.

(Edited by Friz at 7:27 pm on Mar. 4, 2001)

NeXuS1 · March 5, 2001

all right, i'd like to know what they have to say.. those could be nice on my new engine to come.

March 11, 2001

Quote: from Friz on 7:27 pm on Mar. 4, 2001
NeXuS1, you're right. That site is very general. I emailed Coates and asked them specifics on cost, performance, availability, tech support, etc. for my rig. I'll let you guys know what they say.

As of today, no word from Coates. I will try and ping them again, but I don't want to let this thread die. I've been working on motors forever and this really is something neat. Maybe if a lot of people hit their website they'd respond and give Mervz marketing rights. I still believe that he'll end up a rich man and fly us to NH for a cookout. (In the summertime)

(Edited by Friz at 7:27 pm on Mar. 4, 2001)

NeXuS1 · March 11, 2001

d*mn.. i really wanna know more about the heads. they need to hurry up with the info

HiG4s · March 13, 2001

The End Result

The CSRV represents a technological breakthrough that has the potential to impact the internal combustion engine in a manner not seen since its discovery. All of the engines we witnessed offered exceptionally smooth performance with low levels of noise, vibration, and harshness. This was an extraordinary accomplishment since all of the test engines were based about production poppet valve designs; one can only wonder the level of refinement that the CSRV will offer when integrated with a block that is designed for it. To date, Coates offers complete engines based on a block of your choice for racing, street/strip, and industrial applications. The pricing starts at $ 15,000, and by the time you read this, retrofit kits should be available for the popular Ford and Chevy V-8. So far, Detroit has shown the least interest in further developing the CSRV technology, and disappointingly, Coates feels that the first engines to use this will most likely be from foreign companies.