ok I am getting ready to send my block to get honed, but I wanted to run a tap through holes for the head studs I plan on using. I want to do this before to help keep the block clean.

I am not new to tapping, but do I need to use a "blind" tap to get all the way to the bottom? can I buy these are do I have to make it?

what size tap do I need to buy? any insight woudl be great. thanks.

 

well after looking I still have found nothing abou the tap.

but found this info:

Quote, originally posted by EnzoSpeed »
So to recap :
1. z6 block + z6 head = need z6 studs; y8 studs will not be long enough.
2. z6 block + y8 head = need z6 studs + (8) extra ARP washers; y8 studs will not be long enough.

3. y8 block + y8 head = need y8 studs; z6 studs are too long. Or, to be ghetto, use the z6 studs + (40) extra ARP washers.

4. y8 block + z6 head = need z6 studs + (32) extra ARP washers. Or, what you really need, is (8) y8 studs + (2) z6 studs.


I have a z6 block and y8 head. should I use studs still with washers or use the stock bolts? I bought y8 studs but that looks like I am wrong in doing so. I guess I will have to do some research in the garage on this. but if anyone has some wisdome to share…