what tool to use for head bolts

[hurricanecris24]

okay so im taking off the head on my 2g. the head bolts dont use a regular socket. can anyone help me what size socket and what kind.

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[BIGBLAZE79]

12 pt 13MM socket for ARP's, 12pt 12mm for stock head bolts.

 

[hurricanecris24]

thanks

 

[nikkeebabee]

I do believe it's a 12mm 12pt...