v8 block thread cleaning

[Shannen Durphey]

Stowe, Ted-SEA wrote:
> 
> howdy.
> 
> what do you guys use to clean up the block head bolt holes ?
> it would be criminal to torque my shiny heads to all that crud down there,
> which I think exits to the water jacket and or the oil pan ? especially with
> the arp thread sealer/lube on them.
> 
> I see that snap on has a thread chaser tool set, rtd-42, however I can't
> seem to find a local snap on guy to buy it from.
> 
> compressed air would blow that junk down into my engine beyond any doubt.
> 
> so if you were doing a valve job, what do you use ?
> 
> thanks, Ted Stowe
I have a 3 piece tap set from Snap-on, all the taps are bottoming
type.  I also have a fancy thread chaser set.  Before I got those
tools, I used standard taps to clean out bolt holes.  
Shannen