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Discussion Starter · #1 ·
[/font=Times New Roman][/size=4][black][/black]I am looking at boring my 91 Indy 650 .040,am I going to need to have the cylinders sleeved for this? also does anybody know where I can get the engine parts at a decent price?
 

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Why are you boring? If your boring for more power, it ain't gonna make much difference. Not worth the money.

Now, if the motor is all worn out and don't have power for crap, it would make a large difference.

-Dean
 

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Discussion Starter · #3 ·
the motor is worn,it was bored .020 by the guy that owned it before me and had low compression when I got it,it also had cracks between the rings so it needs 3 new pistons.
 

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i believe the stock cylinders will hold up to .60 over but ive seen more. my indy 600 is bored .110 over but it was also sleeved to hold that much
 

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http://www.royaldistributing.com/servlet/MiddleRedirect?page=index1.html

you can go .090 with weisco
 
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