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TECHNICAL => ALL MOTOR TALK => Topic started by: josetimbal on December 19, 2017, 05:30:33 PM

Title: Question About Numbers 1397 on Engine Block
Post by: josetimbal on December 19, 2017, 05:30:33 PM
HI Guys,

First post here... Question: I just got a used 2002 Hayabusa, Removed the fairings and saw a 13.9.77  on the Engine Head. Does this means anything for you guys? Was this head ported to 1397? Trying to add the pic here but it doesn't let me.Thanks in advance
Title: Re: Question About Numbers 1397 on Engine Block
Post by: josetimbal on December 19, 2017, 05:32:17 PM
Here is the pic
Title: Re: Question About Numbers 1397 on Engine Block
Post by: blt1 on December 19, 2017, 10:35:12 PM
Appears to be a date (September 13, 1977).
Title: Re: Question About Numbers 1397 on Engine Block
Post by: wildphil69 on December 21, 2017, 09:38:45 AM
I think they are batch numbers. You can’t port a head to a bigger displacement
Title: Re: Question About Numbers 1397 on Engine Block
Post by: josetimbal on December 21, 2017, 06:06:23 PM
Thank you wildphil69 for your reply. I ask as I heard  people do a 1397 kit on there busa.