Deck hight 211.5mm
Bore 84.5mm

what size pistons and rods would i need.

 

Why 211.5 and not 212mm? Which crank?

 

Dart Block Gsr Stock crank

 

I think they only make 212 & 226mm blocks. The 212mm block would use stock 137.9mm rods with a GSR crank.

 

http://www.windsorhonda.net/dart.html

and all others say 211.5 so would i just have to take .5 off your Number im not too familiar with sizing yet just started stripping down motors

 

The B18a/b/c B16b B20b/z are all 212.0138mm. Perhaps dart made them slightly shorter to increase compression who knows. In theory the rods used with a GSR crank should be .25mm shorter with that block, but I bet you get away with using stock length GSR rods(137.9) and then if necessary a slightly thicker gasket.

On a side note...$3300!?! for a block? screw that. You could get a stock one and sleeve it to 86mm for half that.

 

1800

 

stock height rods will work, pistons...well you already know.
what crank?b18b crank=b18b rods
vtec crank=vtec rods

 

and just get wider pistons for the 84.5 mm bore

 

I'd probably bore to 85mm, but you can get either size from several manufactures. I'm running shelf JE 85mm pistons currently. Very nice design.

 

you sayin have the dart block bored to 85

 

Sure why not. It'll bring displacement to 1979cc.

 

sweet thanks