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pistons for gs 1100/1150

  • Thread starter Thread starter j31driver
  • Start date Start date
J

j31driver

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I have a gs1150 block that I want to put on my gs1100. What are the biggest pistons that I can put in the stock 1150 sleeves? And where should I get them (part numbers etc.). This is for the street only. Thanks.
 
That 1229 is a 20mm pin. You can't use it in a gs1100 motor. I think JE does an 1197 10.5-1 compression piston kit with the 18mm pins. You will need to re-sleeve to go to the 1260 kit.
 
I want to stay with the 18mm pin. I think Ray said he knows where to get the 1229 pistons in 18mm size.
 
That little street bike motor I have in the basement has a 1150 block. It has Wiseco PN# 4194M07800 pistons. These are 18mm and are 78mm bore.
 
The 78 mm is a 1260. No doubt that block has been sleeved.

We can put a 1229 kit with 18mm pins in your 1150 block.

Jay
 
Did not read his questions carefully. Yes it was sleeved! Plenty of meat left in it.
 
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