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Super
heat treated cylinder head nuts are a must for high output engines. Help
prevent blown and leaking head gaskets caused by the threads in the soft
stock nuts stretching. APE nuts are machined from alloy steel and fully
heat treated for maximum strength. Nuts are .150" taller than stock
to prevent the nut from bottoming out on the stud when the head has been
milled. Packed in complete engine sets. |
