how much are cosscast heads fetching nowadays

[blue_peg_16v]

as the title says just wondered how much cosscast heads are changing hands for nowadays

[BIGS]

my mate sold his for ?150

[Stuart]

basically too much, and for no good reason what with the KS heads being 99% as good and very very easy to fix should they "go porous... erm crack"

[_JH_]

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=170202631898


:roll:

[Rick Draper]

Depends on if its a early or a late casting, so many variables. Late Dispack castings are apparently a better cast and easier to free up more flow from.

[Lee]

Agreed. GM heads respond better to flowing than cosscast variants. And should never go porus if you use the revised torque setting on the head bolts.

[blue_peg_16v]

i agree also about gm heads just wondered about price as i have one in the garage and was thinking of selling it, and didnt want to get my leg lifted new they used to go for around ?150

[Rick Draper]

Yes agree with all that but a company which will remain nameless flow tested nearly my entire stock of coscast and GM heads including early and late coscasts, early and late GM including my scrap heads, nearly forty in total, in standard factory form there was hardly any measurable difference except the DIS castings.
With port boring increasing the port diameter and altering the port position slightly (for the better), the bad hand finishing is removed, when combined with the opening out of the throat area.
like I said depends on application and if the casting is to be modified.


..

[blue_peg_16v]

think it will be going on ebay, dont need it have 2 gm heads for spares too

[John]

I've seen a late dis coscast on mig for ?275 iirc.

[blue_peg_16v]

jesus thats ridiculas

[Rick Draper]

jesus thats ridiculas

I paid ?300 for a immaculate late coscast casting.

[Riggy]

mine has a early 20xe coscast on it , **** knows if there any good lol

[General Baxter]

mine has a early 20xe coscast on it , **** knows if there any good lol

the one i sold you?

if so i did not now it had a coscast head, i want ?200 more lol

[blue_peg_16v]

hay baxter dont wory i sold a valve to a mate and 2 days later blew mine up had to buy a new lump and the cheapest i could get was ?100 more than the one id sold not selling mates spares any more now:cry:

[spanishfly]

There worth thousands!!!!!!!!!!!! Awesome heads, loads better than KS ones*





*I'm going to sell my coscast head to fund my ported KS head ;);)

[blue_peg_16v]

well just sold the head on ebay still cant beleive what the are fetching now got £265:) :)

[Lee H]

Think my spare might be going on there then.

[ck]

to be honest from what i have heard some companys will only port a coscat head due to there castings and the materials they are made from. nothing wrong with a cheap GM KS head which has had the pourus mod done just for piece of mind, and to buy th ehead an dhave it modded is easily half the price of a coscast head.

i did sell my own Late DIS coscast head on migweb for £250 as they are ndeed very very rare in DIS format... i have another eyed up at the moment lol..

[Lee H]

Thats where I tried selling mine but best offer was £200 and mine is also a DIS one as well. Thats why I decided to hold onto it but might try it on ebay now.

[craig green]

I would have guessed that most KS heads that were going to go porous would have by now.

I certainly wouldnt pay over the odds for a Coscast head.

[Lee H]

It usually happens when you tighten the head bolts down though so could happen on any head gasket change or if swapping the head.

[Paul]

It usually happens when you tighten the head bolts down though so could happen on any head gasket change or if swapping the head.

Nail on the head, if the HG goes and the engine gets hot, then that also can cause it, but theyre vary rare just to randomley crack (or go 'porous') overnight.

[Nobby]

im told mine has a ported and polished head how do i check if it is??

[mayhem]

here in holland a coscast goes for about 150 to 200 pounds..

btw.. a fixed KS is stronger than a coscast.