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From: "Jason K Gray" <jason510@worldnet.att.net>
Subject: Re: 1800 engine question
Date: Fri, 4 Feb 2000 19:25:05 -0900

-----Original Message-----
From: John Roper 
To: Jason K Gray ;
bluebirds@bluebirds.datsun510.com 
Date: Friday, February 04, 2000 7:03 PM
Subject: Re: 1800 engine question


>
>Any idea what this cc's out to? More than 1800?


 The Z20S pistons are same 85mm bore as the stock L18 piston so no change in
displacemente from stock 1770cc. Boring +1mm and using +1mm oversize Z20S
pistons gets you to 1812cc and raises compression further. Custom spec 88mm
forged pistons would get you to 1898cc and make for a more oversquare
bore/stroke ratio, could be nice RPM happy motor with suitable
head/valves/cam/induction.  Start with the L18 block if you plan to bore it
out any more than 85mm.

Jason K Gray
Wasilla Alaska
510 website http://home.att.net/~jason510/
'73 2-door 510 L16T

Those are not oil stains on my garage floor, they are bluebird droppings!



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