[PAUL K]

Originally Posted by glhs#116

I seem to have upset Mr. Formulas somehow but it's a good point (and why I was asking the question).

Someone must have sleeved an Edelbrock Pontiac head headbolt hole before, right? The part Steve25 linked to is .563. My measurements show that clearly wouldn't fit. I see sizes .500 .563 .625 .656 and these seem to be the sizes Dart are selling for head bolt holes on US engines with inch sized head bolts. So, you know, that's where my confidence is based on trying that size. We'll see I guess. But I'm wide open to be told a better answer. Just doing what I can.

Sam

This is the tubing we usually use for sleeving Performer RPM head bolts holes. Most of the time you will need to ream the ID of the sleeve after its installed. With the heads installed the holes could be sealed from from consuming oil with the Right Stuff and a little care... No need for the sleeves.

[glhs#116]

Originally Posted by PAUL K

This is the tubing we usually use for sleeving Performer RPM head bolts holes. Most of the time you will need to ream the ID of the sleeve after its installed. With the heads installed the holes could be sealed from from consuming oil with the Right Stuff and a little care... No need for the sleeves.

Reading between the lines, is it going to be incredibly difficult to install sleeves with the heads on? I now have 17/32" sleeves. They were 1/2", but after forcing them over the threads of some spare head bolts they now measure out at 17/32" or so. Actually, I'm getting .523" OD on these. I measured the ID of the headbolt holes at around .516". That pretty much means with a wall thickness of greater than .008 (and these were .014 wall thickness before stretching) it's not going to have room for a 1/2" bolt. Although it's a soft metal so I imaging you can just turn the bolt and force it through. It won't matter much because the bolt will land on the skinny portion in the sleeve at the point where you are torquing it... At least that's what it looks like.

Embiggened


Only took three hours


The reason I'd like to go sleeve is it just rules out that whole thing. My problem may still be elsewhere and I'd like to not be playing "did I get the headbolt washer to seal or didn't I?" And also I only know about one breakthrough but I have more than one oily hole. So, you know, at least with a sleeve each runner is for sure sealed...

Anyway, when I get the extra sealant I'll probably have a go unless someone tells me why not to.

Sam