Bypass " Bump " Head

[Conn47D24]

Good morning gentlemen,

 

The internal  vs external threads here have cause me to pause and panick a bit.

 

Not knowing the difference, I used one of the several heads on my new build.  This head has  " the bump "

yet the block does NOT have the by pass hole I have seen and read about here.

 

The photos show what I have, and I've included a photo of the NOS Mopar copper head gasket I used.  I appears to me to NOT have the bypass hole either.

 

Please review these pix and see if I am seeing what I'm afraid of.

 

Question, will this gasket cover the hole in the HEAD and therefore I'm fine?  OR ....

should I take off this head and use the NON BUMP head ?

 

OR ..... is there more to this ???

 

Thanks all for bailing me out.

 

Clay

Edited November 11, 2018 by Conn47D24
spell

[dpollo]

you will have to block the hole in the head  thread and insert a plug made from a bolt  9/16 NF will work.. wheel bolt size

If the engine has not been run you can safely reuse your gasket.

 

or use a 51 and later gasket which will effete actively cover the bump.     

[Conn47D24]

Thanks dpollo !

 

The more I read, I was afraid of that.

 

I do have a correct " non bump " head but it had a repair around the thermo housing.  

 

Thought I picked the better of the two. LOL

 

Either way I have to remove the head so I will use the correct one after all.

 

Minor setback.

 

I could see the "barn door" as they say, and got ahead of myself.

 

I have to keep studying these threads.

 

Thanks again !

 

Clay

[DJ194950]

I thought I have read from some past forum posts that the non- bypass port blocks could be used with a non-bypass head with the correct head gasket (I think it was the early non bypass gasket but could be the opposite!).

Just need to use the water pump with the correct backing plate and the block non-bypass thermostat housing with the by-pass on it.  ?

Maybe some one with that experience will join in with Correct info..

 

DJ

[thebeebe5]

A repair at the thermo housing mount shouldn’t be an issue if the repair is right.  Read about mine here:

 

 

[9 foot box]

   Why not drill the block to match the head. Use the proper gaskets as templates for the holes. 

[Conn47D24]

Thebeebe5

What a great thread and build !

My repaired head looks similar, brass weld.  

I will swap the head as all other options require removal anyway.

 

I have to ask. All that great detailed work and you kept the old head studs. Why not change them ?

[thebeebe5]

7 hours ago, Conn47D24 said:

Thebeebe5

What a great thread and build !

My repaired head looks similar, brass weld.  

I will swap the head as all other options require removal anyway.

 

I have to ask. All that great detailed work and you kept the old head studs. Why not change them ?

 

Thank you!

 

I guess if the deck seemed like it needed a cut I would have, but I didn’t relish the idea of removing 21 head studs...   ?