To get the advantages of the 2.1L cooling system you need upgrade it.
You will need to upgrade or modify the pipes to the radiator, ad the
appropriate coolant manifold and get the 2.1L water pump, t-stat
housing, sensors, oil cooler, etc. The 2.1 also uses a larger throttle
body and of course a better exhaust.

The 1.9L fuel injection and ignition supports the 2.1 just fine. My seat
of the pants tells me it actually makes more power as it runs slightly
richer than the 2.1 system.

Dennis

-----Original Message-----
From: Al and Sue Brase [mailto:albeeee@mchsi.com]
Sent: Saturday, December 04, 2004 3:20 AM
To: Dennis Haynes
Cc: vanagon@GERRY.VANAGON.COM
Subject: Re: Head gasket replacement: how much?

Yes, I'd agree about the better cooling system, but to get most of the
benefit you've got to put the whole thing in and not just the long
block. And to get full advantage of the 21's better breathing, you neet
to bring the injection and ignition system along too. (I know Dennis
knows this! Others have advocated changing just the long block.)
Al Brase

Dennis Haynes wrote:

>The 2.1L engine is the same head and gasket design but the cooling
>system has some design differences that make it superior. Much more
>tolerant of air or gases in the system and mostly self bleeding if
there
>are no leaks.
>
>
>