Duck and guys, for the small welch plug at end of intake side of heads i have been using for years a 23 mm welch plug, nowadays the metric size is easier to find here than the original odd size. Hope this may help. best regards  aussiebill.

  AussieBill            YYYY    Forever Y Block     YYYY

 Down Under, Australia

Duck, of course the plugs they were trying to sell you were the ones that go in the ends of the heads on the early model Ys.

1 3/4"

   God Bless.   Tim                           http://yblockguy.com/

350ci Y-Block FED "Elwood", 301ci Y-Block Unibody LSR "Jake", 312ci Y-Block '58 F-100, 338ci Y-Block powered Model A Tudor

tim@yblockguy.com  Visalia, California    Just west of the Sequoias

I always provide the part numbers. Just go to their website, look up the parts, write down the numbers. They usually have a picture of the part, too. I've never had a problem doing it this way. If I do, I'll know, without a doubt, who to blame.


Lawrenceville, GA

Kenny:

Actually, in the mid 70s I did work at NAPA as the machinist.  That was when they had catalogs.  You know, paper books with printing in them.  No screens or keyboards.  Mixture of older guys and young guys, and the older experienced guys helping the young guys when they hit a snag.  I still have a couple of their catalogs, that's where I come up with part numbers.  I am no longer associated with NAPA, and am not pushing their parts, though I do use them myself.  Some of the other stores can cross over the NAPA numbers for you.

John - "The Hoosier Hurricane"

thanks for the napa number. autozone needs year make and model so they can look at there computor and tell me im asking for the wrong size. they cant go to shelf and look. ok now to give duck back his thread.

Kenny  Onalaska, Texas

Duck: Hopefully your head isn't corroded badly at the opening. According to John Mummert, he has seen heads that won't hold a plug..

Paul

Yep!  It goes on the back of the engine.  I installed brass.  Here's a picture:

Royal Oak, Michigan (Four miles north of Detroit, and 12 miles NORTH of Windsor, Canada).  That's right, we're north of Canada.

Ford 292 Y-Block major overhaul by simplyconnected

John- Thank you! I wish you would consider working full time at my local NAPA- They could REALLY use your help... -Thanks Again- /Duck

BOO- YA!!!

Duck, Kenny:

The head plug is 59/64.  The NAPA number is 2193077.

John - "The Hoosier Hurricane"

Kenny- Been there, done that. Finally got sick of it all and ended up sending the pump I had to Cardone for a rebuild. $92.00 later I am a much wiser (albeit, poorer) man.... -Good Luck- /Duck

BOO- YA!!!