Piston ID on Stroker Pistons part# 21171 6571M86

[Littlebeeper]

This is wierd, supposedly this is a stroker motor (2.3), 4G63 withe the stroker crank, but i can't identify what pistons it has. all i see is these part numbers on the face 21171 6571M86 . i did a search and nothing came up. google search brought up nothing either (other than a kawasaki website) and the popular Weseco stroker pistons and others at Slowboy have completely different part numbers. any ideas?

 

[ericbev]

is this an assembled short block? If you have access to a digital/dial caliper you could always measure the bore.

 

[Littlebeeper]

i'm not concerned if its a stroker or not but i want to know if the pistons will hold up. i don't want trash pistons.

 

[ericbev]

Sorry for the confusion but your wording was a little goofy. Where did you acquire a motor from that you are unsure if its stroker or not and dont know what components were used in its construction?

 

[JeffGST]

M86 would designate an 86mm diameter piston. 40 over

Just search for the beginning of the part number now.

 

[Littlebeeper]

no luck on that either. at least i know i can't machine the motor any more. that helps some. i'll keep looking and keep the ideas comming