www Photobucket com

 

 

sorry for the focus on some (not my camera)

 

Do you have flow chart numbers? to show percenatge improvement flow over stock values?

In CFM or percentage would be great..please note at what % valave is opened when flow tested

Thanks

TODD

 

That HOT! Dude! Don't keep us in the dark.... How Much? Price? Cost? Who do I have to Kill?

Details boy... Details?

 

Are these for NA or FI or both? Depends on cams used? What size studs do they use?

 

Found this:
http://www.cosworth.com/shop_item.php?productid=442

 

DAMN!!!!! 411 CFM flow on the intake side is nuts.

 

damn, they are nice and all, but for 4300? and they are still made from crappy OEM castings?!?

 

How does this compare to P&Ping the stock heads with the +1mm Ferrea valve train? Considering the price difference, I hope they're awfully special. They sure are pretty though.

 

Is it reallt that bad of a price? Theres no core charge! Isnt headwork costing about this already?

 

Not even close last time I checked. I guess if somehow you managed to crack your heads, this may work out but still not really. You can still get heads complete with cams and valvetrains out of salvage yards for $500 a set and the rework those if you happen to destroy your original heads. The difference in price between SGP's shortblock and long block is $1800 so that would be the approximate cost not including the cams or valve train. A full +1mm Ferrea valvetrain can be had for $1500 (includes everything) so it is still $1K cheaper. Unless the Cosworth heads come with ARP quality main studs and head studs (only $350), I don't see much value.

 

i want cosworth heads

 

When you add all the componets they have, new heads, and the work of a cnc machine and flowbench, it's almost the same cost. Belive me I did my home work before domping the money.

 

Can one of the sponsors chime in to this thread? I called and got a few price a few months ago for worked heads and it was pretty close to this.

 

yeah but what do you get, heads that have minimal improvement in flow, just buy new/used heads, ferrea valvetrain, set of cams, and presto! an awesome set of heads just as good for cheaper. still they are nice tho. doesnt nismo sell heads for 2K? i dont know about the components, i just remember seeing them for sale on one of the sponsors site.

 

$4300 is a bargain for a fully built, ported and assembled heads, made from brand new Nissan OEM castings. These are not junkyard heads. Subtract out the $900 for OEM heads, are you looking at $3400 for Cosworth engineering, dual valve springs, CNC ported heads, reshaped combustion chamber, Ti retainers, 1.2mm oversized valve, inconel exhuast valves...etc..etc. Everything but a cam.

Heads of this caliber typically run $4000-$5000 PLUS a core.

 

so by the time you add cams youre looking at 6k for heads. woah, id like to know how many of these they actually sell. looking forward to seeing how they perform.

 

Sharif are you guys going to sell these heads and cams when they come out?

 

Yes, we have delivered 1 set so far, and 1 is on order for another customer.

Tig, this game gets expensive..you already know that.
No heads will come with camshafts. They leave that up to the end user. You could even use a stock cam, if you prefer.

The first production run of 10 sets are almost completely sold out. They told me they are making 35 more sets!