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From: "Jason K Gray" <jason510@worldnet.att.net> Subject: Re: 1800 engine question Date: Fri, 4 Feb 2000 18:19:49 -0900>Yes, you certainly can. You'll want to use the L-18 cranks, connecting >rods, and pistons. > >Another option is to use the L-18 crank and connecting rods, and L-16 >pistons. This will give you a 1.7 liter "L-17." This is a pretty common >upgrade. I believe Bruce Godfrey runs this combination. > >Dan McGee >Urbana, IL Better yet, build a "Longrod L18" (from my website) Long rod L18 flattop Z20S pistons and peanut chamber head for 9.7:1 CR, better rod/stroke ratio for higher RPM. Parts: L18 crank, L18 block, L16 rods, Z20S pistons stroke/2+rod+piston height+ 207.66mm assembled piston deck height: -0.29 (below deck) I am not absolutely sure if Z20S (HL510) pistons are flattops, I know that the Z20E pistons are. Compression ratio would be unsuitably low if the Z20S pistons are massivly dished. 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! This message comes to you from the Datsun 510 mailing list. List rules and instructions are available at: http://bluebirds.datsun510.com/bluebirds/listcharter Authors retain implicit copyright to their material. Obtain permission from the author before redistributing messages.