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Discussion Starter · #1 ·
what size pistons??

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im just about to buy a set of forged pistons and conrods off ebay.
can anyone confirm that 87mm is the right bore size please as i want to make sure they will fit before i buy them!!!!!
im pretty sure the standard size is 86mm and i will need to have the pots bored out 1mm although im not positive????
i will be fitting them to my r34 gtr rb26 engine
i want to buy these asap so any help much appreciated.
thanks:squintdan
 

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Std bore is 86mm.If you get 87mm you have to bore your block 1mm as long it is still std and nobody bored it before/
 

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Discussion Starter · #3 ·
rocar said:
Std bore is 86mm.If you get 87mm you have to bore your block 1mm as long it is still std and nobody bored it before/
thanks alot for the info, just wanted to be sure before i bought them.
 
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