Freeze Plug

Thanks Jesse so i will have to drill and tap small hole in the block itself.I just wanted to do my homework so i don't mess my block up.I will never put a race engine back together without screw in freeze plugs.I might take it back out and try find the tap and plugs i need to feel safe at this point.

You dont have to really tap the screw holes. A sheet metal screw just started in that gets tight is what dad did. But if you tap the block for the 1-1/4" plugs u won't ever have to worry about it.

Is sheet metal screw in plug alone or plug and block?

You can put 2 screws opposite sides of each other threw just the block at the edge of the plug on a angle to avoid the water jacket. Or drill the plug a little bigger than the block. Remember to drill on an angle and put the screw threw both. If you drill both also make sure the plug is drilled bigger so that the screw doesn't pull the plug away from the block.

Well it hard to try put freeze plugs in with a socket that will not go flush at any angle i can get to it with a socket and extension.I put 3 in and pull back out everytime i got it about where i needed it was to far in.Do they make a tool i can order from Jegs or summit that will work?

I actually went to harbor freight and bought a seal driver set and use one bigger than the outside of the freeze plug.
http://m.harborfreight.com/10-piece-bearing-race-and-seal-driver-set-95853.html

Is part# M-6026-B302 the right screw in plugs for a bbf?The part# from summit.

The reason for the two tap method is that the normal pipe tap is tapered and will bottom out on the water jacket wall. Buy two taps the same size.
Use one to start tapping the hole till it just bumps the wall. Don't force it or you can crack the wall. Use some tape to mark on the tap how deep it went.

The 2nd tap you will want to grind the end of it off no further than the tape mark on the 1st tap. It's better it if is longer than the tape mark.

The tricky part is not to over tap the hole. It is tapered so go in small steps and check your screw in plug often. It is easier to test many times than to take out too much and the screw in plug will not tighten.

If you find out your 2nd tap bottoms out before you reach final size you may have to grind more off end of tap.

Once you have tapped the hole to size coat the screw in plug with paste thread sealer. Don't use Teflon tape you might not be able to feel it tighten and over tighten the plug cracking the block.

bigjohn2007 wrote:Is part# M-6026-B302 the right screw in plugs for a bbf?The part# from summit.

 
the sbf and bbf take the same pipe plugs

1-1/4" npt plugs....hardware store or plumbing supply.