RE: L/Z conversion

[Richardson, Thomas Morgwn - RICTM002]

The NAPS/Z heads are all the same but they are distinctly different to the L series heads.  You can't use the camshaft or the manifolds.  I have a spare Z20E head, I'll measure the valve and port sizes for you this afternoon.   As for the oil feed, I think you use a T-juntion from the oil pressure sender.  Zac, how did you do this?   For the return, simply braze a fitting onto the sump.   - Tom -----Original Message----- From: David Costello [mailto:[EMAIL PROTECTED]] Sent: Tuesday, 8 January 2002 12:18 PM To: [EMAIL PROTECTED] Subject: Re: L/Z conversion if every NAPS/Z head is the same, would I be better off just putting my Z manifolds etc onto the L20B head, that way I don't have to mess around with timing covers. also wouldn't the 2L head have larger ports and valves?   what about cams, would the Z18 cam work in the L20?   Dave ----- Original Message ----- From: Richardson, Thomas Morgwn - RICTM002 To: '[EMAIL PROTECTED]' Sent: Monday, January 07, 2002 9:31 PM Subject: RE: L/Z conversion David,   You'd get the same compression ratio as the original engine, because every NAPS/Z head is essentially the same (save for valve and port sizes varying), and the chambers are the same size as U67 (L20b) chambers.  No modifications would be needed to the pistons to fit the Z18ET head to a 2 litre bottom end.  The Z20 blocks are supposed to be stronger, but people rarely have problems with L20b blocks so there's not really any compelling reason to use a Z20 block since you do then limit your choice of gearbox.  It would probably be easier though, since you have to source a Z20 timing cover anyway.   - Tom    -----Original Message----- From: David Costello [mailto:[EMAIL PROTECTED]] Sent: Monday, 7 January 2002 8:05 PM To: Ozdat Mailing List Subject: L/Z conversion guys what compression ratio would you end up with if you put a Z18ET head on an L20B or Z20 bottom end?   is either block stronger? the L20 or the Z20?   could I get enough shaved off the top of the L20 pistons to use the Z18 head?   Dave --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/membersozdat@datascribe.com.au/ --------------------------------------------------------------------- --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/membersozdat@datascribe.com.au/ --------------------------------------------------------------------- --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/membersozdat@datascribe.com.au/ --------------------------------------------------------------------- --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/membersozdat@datascribe.com.au/ ---------------------------------------------------------------------