So who will be first with Cosworth head?
Originally Posted by Evolved Monkey
wow...10,500 rpms. That alone is worth the pricetag
Originally Posted by Evolved Monkey
wow...10,500 rpms. That alone is worth the pricetag
Originally Posted by Big Boost
A P&P with all new valves, retainers and springs is about $2,000 grand.
Originally Posted by Big Boost
I would like to see some results from this. Just because it's Cosworth, it doesn't automatically make it great. Not bashing, but I would just like to see real world results.
On the other hand $3,800 is not too bad if you get a brand new head and all the valves, retainers and springs.
A P&P with all new valves, retainers and springs is about $2,000 grand.
If you got the Cosworth head AND sold your used head for about $1,200 it would be fairly close in price.
On the other hand $3,800 is not too bad if you get a brand new head and all the valves, retainers and springs.
A P&P with all new valves, retainers and springs is about $2,000 grand.
If you got the Cosworth head AND sold your used head for about $1,200 it would be fairly close in price.
the first people to have it are prolly works... they have a works cosworth now...
Originally Posted by thatsMR2u
cosworth head, with jun stroker on bottom end (which uses cosworth pistons)...wet dreams
just hold tight, works should be doing a full review of the cosworth head over the next two weeks. rumour has it that we may even see a stroked forged crank (2.2) and cams from cosworth as well. for those with deep pockets you'll be able to get a complete cosworth crate motor, possibly even broken in on their engine dyno in cali prior to shipping. yummy
Does inconel not make intake valves? Wondering why they did not use the 2400F valves for the intake side also... It is understandable that the backside of the valves would be cooler, but the cylinder facing side would be pretty damn hot also... Interesting.
Originally Posted by TTP Engineering
Does inconel not make intake valves? Wondering why they did not use the 2400F valves for the intake side also... It is understandable that the backside of the valves would be cooler, but the cylinder facing side would be pretty damn hot also... Interesting.
EVOlutionary
Ah-ha... Damn it sounds like a brand name. 
Here is what I dug up...
Here is what I dug up...
Description
Alloy 617 is a solid-solution, nickel-chromium-cobalt-molydenum alloy with an exceptional combination of high-temperature strength and oxidation resistance. The alloy also has excellent resistance to a wide range of corrosive environment, and it is readily formed and welded by conventional techniques.
The high nickel and chromium contents make the alloy resistant to a variety of both reducing and oxidizing media. The aluminum, in conjunction with the chromium, provides oxidation resistance at high temperatures. Solid-solution strengthening is imparted by the cobalt and molydenum.
--------------------------------------------------------------------------------
Application
The combination of high strength and oxidation resistance at temperatures over 1800°F makes alloy 617 an attractive material for such components as ducting, combustion cans, and transition liner in both aircraft, and land based gas turbines. Because of its resistance to high-temperature corrosion, the alloy is used for catalyst-grid supports in the production of nitric acid, for heat-treating baskets, and for reduction boats in the refining of molybdenum. Alloy 617 also offers attractive properties for components of power-generating plants, both fossil-fueled and nuclear.
--------------------------------------------------------------------------------
Physical Properties
The alloy's low density, compared with tungsten-containing alloys of similar strength, is significant in applications such as aircraft gas turbines where high strength-to-weight ratio is desirable.
Density, lb/cu in............................................... 0.302
kg/cu m................................................ 8360
Melting Range, °F.................................... 2430/2510
°C................................... 1332-1377
Specific heat at 78°F (26°C)
Btu/lb-°F.... ............................. 0.100
J/kg-°C........................................ 419
Electrical Resistivity at 78°F (26°C)
ohm-cir mil/ft............................. 736
æê-m........................................ 1.22
Alloy 617 is a solid-solution, nickel-chromium-cobalt-molydenum alloy with an exceptional combination of high-temperature strength and oxidation resistance. The alloy also has excellent resistance to a wide range of corrosive environment, and it is readily formed and welded by conventional techniques.
The high nickel and chromium contents make the alloy resistant to a variety of both reducing and oxidizing media. The aluminum, in conjunction with the chromium, provides oxidation resistance at high temperatures. Solid-solution strengthening is imparted by the cobalt and molydenum.
--------------------------------------------------------------------------------
Application
The combination of high strength and oxidation resistance at temperatures over 1800°F makes alloy 617 an attractive material for such components as ducting, combustion cans, and transition liner in both aircraft, and land based gas turbines. Because of its resistance to high-temperature corrosion, the alloy is used for catalyst-grid supports in the production of nitric acid, for heat-treating baskets, and for reduction boats in the refining of molybdenum. Alloy 617 also offers attractive properties for components of power-generating plants, both fossil-fueled and nuclear.
--------------------------------------------------------------------------------
Physical Properties
The alloy's low density, compared with tungsten-containing alloys of similar strength, is significant in applications such as aircraft gas turbines where high strength-to-weight ratio is desirable.
Density, lb/cu in............................................... 0.302
kg/cu m................................................ 8360
Melting Range, °F.................................... 2430/2510
°C................................... 1332-1377
Specific heat at 78°F (26°C)
Btu/lb-°F.... ............................. 0.100
J/kg-°C........................................ 419
Electrical Resistivity at 78°F (26°C)
ohm-cir mil/ft............................. 736
æê-m........................................ 1.22
Evolving Member
Joined: Dec 2004
Posts: 103
Likes: 0
From: ARIZONA
Originally Posted by nitz
just hold tight, works should be doing a full review of the cosworth head over the next two weeks. rumour has it that we may even see a stroked forged crank (2.2) and cams from cosworth as well. for those with deep pockets you'll be able to get a complete cosworth crate motor, possibly even broken in on their engine dyno in cali prior to shipping. yummy
Originally Posted by fimotorsports
mine is on the way! test results to follow 
I'm selling my ported head with complete ferrea valvetrain as well.
I'm selling my ported head with complete ferrea valvetrain as well.