head gasket?
 

so i got my 413 bored .030 over. im bout to order my master kit for the rebuild. what is my bore size now? a stock 413 bore gasket wont work? will a 440 head gasket work. Need help asap!!!!

So, what heads are you going to be using?

With a 413 you need to be considered with compression ratio, so what heads do you have?

Your not going to find the proper gasket in a master gasket set.

I am trying my best to find a good set of 915 heads. They are the best choice I have with th mods I'm doing to the motor.
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If you can't find the 915s look for 2406516, 64 to 67 383 361 heads,, they're close chamber but small valve so you can put the larger valves in, ports are not as good as the 915s but close.
Cometic makes a .027 head gasket for the 413 with a 4.250 bore, yours is 4.210 perfect. You can order the .027 gasket set.
www.cometic.com