Ryan, Sometimes it works out a lot cheaper to find a head thats already been done. If you want to get your head done you'll need to find someone experienced with the L series in your state.You could be looking at over a $1000 to get what you need.It adds up pretty quick with the cam,valve springs,valves,valve seats,valve guides and seals,lash pads,head porting and match porting the manifold,deshrouding and cc'ing the chambers,facing etc. A cheaper alternative might be to use the larger port L20 type head and face it to get some more comp and fit heavier springs,lash pads and your cam.A lot depends on your budget and how much power you want. Andrew Smith
Ryan 510 Ottens wrote: > andrew, > i dont really plan on doing much of the work myself, as i dont really have > the time, equipment or knowledge. > im willing to pay someone to do it for me, but b4 i start getting anything > done i want to know exactly what should get done. > > so it seems to port out the 1.8 is the way to go then? > is polishing worth it? > anything else i can do? > > cheers, > ryan > > >From: andrew smith <[EMAIL PROTECTED]> > >Reply-To: [EMAIL PROTECTED] > >To: [EMAIL PROTECTED] > >Subject: Re: 1.8 VS 2.0 ltr head > >Date: Sat, 09 Mar 2002 07:11:51 +0800 > > > >Ryan, > >I assume you mean a closed chamber L18 head compared to the open chamber > >L20 > >head.Both heads can be modified to suit and probably depends on what you > >can > >do yourself and/or how much your willing to pay someone.Using a closed > >combustion chamber is the way to go which means the L20 head would need to > >be > >welded up and machined which can be costly.The L18 head would only need to > >have a bit of deshrouding in the chambers.The L20 head generally has larger > >ports than the L18 head to start with but both would require porting.If > >your > >attempting to do the porting yourself i would suggest trying to find > >something to copy.The last head i did i borrowed a corroded out head of > >someone that had come off a 200hp L20 and copied that.If you havent done > >any > >porting before, do some homework first.Ive seen plenty of people stuff up > >good heads.I would also get a hardness test done on the head before i > >started > >anything. > >Andrew Smith > > > >1600 BoY wrote: > > > > > hey list, > > > im stumped at which to choose between the 1.8 or the 2.0 ltr. > > > currently i got a L20, with twin 45s on the way. plans include big cam, > > > clutch, and match ported head. > > > now i have both a 1.8 and a 2.0 head spare. ive been told some different > > > stories but dont know which head will best suit the application. im > >under > > > the impression the 1.8 raises compression, but if u shave the 2.0 will > >it > > > also raise the c/r? > > > i also plan to get 280zx valves(44mm) but i dont know which head. > > > IE if i do the same mods to the 1.8 and 2.0 which will benefit better? > > > if the 2.0 is ported could u get it ported more than the 1.8, ie is > >there > > > restrictions on the 1.8? > > > > > > any other mods i should to to the head at all? > > > thanks list, > > > Ryan Ottens > > > > > > _________________________________________________________________ > > > Chat with friends online, try MSN Messenger: http://messenger.msn.com > > > > > > > _________________________________________________________________ > Send and receive Hotmail on your mobile device: http://mobile.msn.com > --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/[email protected]/ ---------------------------------------------------------------------
