Part broken off...

[grumpin]

I've always been curious on this when I see people reference putting plugs in the head holes. Was it all of them except the 460 that were threaded?

I was hoping the 460 is threaded.

 

[ArdWrknTrk]

I've always been curious on this when I see people reference putting plugs in the head holes. Was it all of them except the 460 that were threaded?

I was hoping the 460 is threaded.

Nope.

They have a C shaped collar and a screw next to it.

I'm sure you could find a brass tapered pipe plug and just crank it in.

[kramttocs]

I've always been curious on this when I see people reference putting plugs in the head holes. Was it all of them except the 460 that were threaded?

I was hoping the 460 is threaded.

Jim's correct :(

When I get home I can post a picture of what I was going to use for an in-truck solution before I ended up pulling the motor.

[myrl883]

Jim's correct :(

When I get home I can post a picture of what I was going to use for an in-truck solution before I ended up pulling the motor.

I'm not sure on the 460, I think they're cup plugs - DOZZ-6026-B, I think.

The threaded ones are used on small blocks, which looks like what he has.

[kramttocs]

I'm not sure on the 460, I think they're cup plugs - DOZZ-6026-B, I think.

The threaded ones are used on small blocks, which looks like what he has.

No, you were good - his is a 351 and Gary's diagram is applicable. It was my fault for hijacking it with the 460 question.

[ArdWrknTrk]

No, you were good - his is a 351 and Gary's diagram is applicable. It was my fault for hijacking it with the 460 question.

I was asking which p/n myrl was giving.

Then replied to Dane.

Dane, if you have the heads off or engine out you can get the plugs at NAPA.

[grumpin]

I was asking which p/n myrl was giving.

Then replied to Dane.

Dane, if you have the heads off or engine out you can get the plugs at NAPA.

Ok, that’s what I seem to remember, that you couldn’t do it without removing the heads or engine.

 

[ArdWrknTrk]

I was asking which p/n myrl was giving.

Then replied to Dane.

Dane, if you have the heads off or engine out you can get the plugs at NAPA.

Ok, that’s what I seem to remember, that you couldn’t do it without removing the heads or engine.

Yes

The 460 sits so close to the firewall there's no way you could get a punch and hammer back there.

But you now know it's just over 5/8 diameter. (.666", the mark of The BEAST)

I *think* 3/8 NPT might work?

ETA: just checked 3/8 NPTM is .675" at the crests, so it should work.

[kramttocs]

Yes

The 460 sits so close to the firewall there's no way you could get a punch and hammer back there.

But you now know it's just over 5/8 diameter. (.666", the mark of The BEAST)

I *think* 3/8 NPT might work?

ETA: just checked 3/8 NPTM is .675" at the crests, so it should work.

Regarding the 460, here is the factory hold down clip:

It's offset due to the retaining ring on the crossover tube.

Here is what I made before I pulled the 460 in the 86 and plugged it with the plug. Nothing groundbreaking but it works and isn't terrible to install all things considered. I installed some on my 85 1 ton and never had any leaking. On these I welded on washers to ensure the plate was over the hole and didn't twist when tightening down as I ran into that on the 85 and smeared the gasket maker.

[grumpin]

Regarding the 460, here is the factory hold down clip:

It's offset due to the retaining ring on the crossover tube.

Here is what I made before I pulled the 460 in the 86 and plugged it with the plug. Nothing groundbreaking but it works and isn't terrible to install all things considered. I installed some on my 85 1 ton and never had any leaking. On these I welded on washers to ensure the plate was over the hole and didn't twist when tightening down as I ran into that on the 85 and smeared the gasket maker.

That’s nice Scott, good job! I have a friend who could make me a couple of those if need be.