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Old 05-01-2005, 07:42 PM   #16
Crawford Performance
Member#: 42075
Join Date: Aug 2003
Chapter/Region: SCIC
Location: Ontario Ca.

Originally Posted by 02Toyowrx
R4 has thin cylinder walls..106mm i think.. bored to the limit.... I would suggest using crawfords S4 engine. And compare pricing and timeline with Axis.
Thanks for the help, but........ With a 106mm piston, the rings on the two pistons would be touching each other

The bore size on the R3 and R4 can be any size you like, with a max of 103mm.

The S3L would be my recommendation for your project, but the S2 or S3 would do the job as long as the tune is proper.
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