LS Crank in GSR block, what rods and pistons?

[ek_jeremy]

could you guys tell me what are the advantages and disadvantages of using a ls crank in a gsr block, besides the oil squirters? and also what size rods and what piston for 11.8 compression would provide the best r/s ratio with a micropolished ls crank? thanks for all the help

 

[posol]

using an LS crank in a gsr block will give you about 30cc more displacement, and thus, more torque.
the gsr also has a block girdle to support the crank.
you need to use LS-length rods (oem LS rods won't fit a gsr piston- jdm p30 b16 sir pistons will fit ls rods and will give a low 11:1 ish compression)
rod/stroke ratio will be the exact same as the ls. figures are in the reference section.
compression depends on a lot of things- mainly, the head choice, gasket thickness, and all that.

 

[malaf393]

What bearings would you have to get if you got da ls crank in a gst block would it have to be for ls or gsr I kno main bearing are all the same but what bout da rod bearings?

 

[malaf393]

Gsr**************

 

[B16]

LS rod bearings. LS rod big ends are a different size from the GSR/ITR/CTR. Like you said, mains are the same though.

You gotta remove the oil squirters too.