Drilling steam holes in a 5.9 CR Head - Competition Diesel.Com

Cflanery88 · 01-31-2017, 12:55 PM

So I've searched and read many threads but can't seem to find exactly what I'm looking for. I'm getting ready to drill my 06 24v head for the steam holes(as it is going on a 6.7 block), and have everything marked and ready to go just wanted to know if someone had an exact measurement of the steam holes in a 6.7 head or size they should be drilled to. My initial plan was to just drill them large enough to where the gasket still sealed but I don't want to remove more material than I have too. And would also like to know about how deep The coolant jacket is from the surface of the head?

Any information or insight on the matter is greatly appreciated.

chris lang · 01-31-2017, 01:56 PM

No real information, but I had Bruce block at b&b tooling do mine. I have the head on already so I can't measure anything for you. But he's in Michigan.

SKYNYRD · 01-31-2017, 05:55 PM

If you have the head gasket just place it on your head using a couple head bolts to keep it in place. The only question then would be the depth to drill.

zstroken · 01-31-2017, 06:54 PM

Just drill slow, size really isn't that important, you are primarily just keeping water from getting trapped in that area. I forget what size hole mine were. Mine were drilled on a 24V VP head.

SKYNYRD · 01-31-2017, 07:14 PM

I would say for the size of the hole I would go with the small of the hole in the block or the hole in the head gasket.

zstroken · 01-31-2017, 07:50 PM

Quote:

Originally Posted by SKYNYRD

I would say for the size of the hole I would go with the small of the hole in the block or the hole in the head gasket.

, yea I was meaning stay small, but as I reread my post I could see someone going in with a 1/2" drill and not be happy with the results.

Mark Nixon · 01-31-2017, 08:07 PM

Quote:

Originally Posted by SKYNYRD

If you have the head gasket just place it on your head using a couple head bolts to keep it in place. The only question then would be the depth to drill.

2 old lifters in 2 holes line the gasket up PERFECTLY.

Since the steam hole in the block is bigger than the ones in the head, all that needs to be done is drill the holes the same size as the gasket.

There is no depth, per-se.
The steam holes are open to the interior of the head casting, which is how they do what they do
Just cautiously drill through the 1st one to find the depth, maybe add an 1/8" to the overall to cover casting inconsistency, then add a depth stop and drill the rest .

Mark.

Cflanery88 · 01-31-2017, 09:34 PM

Thanks guys.

Cflanery88 · 02-07-2017, 07:50 PM

Drilled my head tonight. I ended up having to free hand it cause it wouldn't clear my drill press, but it ended up turning out very well. I drilled them with a 3/16" drill bit using a smaller bit first. I didn't measure the depth to the coolant galley, but you don't really need to worry about that cause there is plenty of room after the bit makes it through on the intake side. The exhaust side on the other hand is a bit tricky cause I broke two bits due to the slope in the galley as soon as the bit makes it through. The bit would want to catch and beak the tip off the bit. I could see using a drill press and a marked bit for correct depth being way more accurate and save your drill bits.

biggy238 · 02-07-2017, 08:03 PM

Good info. You just used a gasket to mark the locations?

Sent from my XT1575 using Tapatalk

Cflanery88 · 02-07-2017, 08:16 PM

Yeah I used a factory 6.7 gasket, lined everything up, and then used a marker to mark the location of each hole on the head. Then followed up with a spring loaded punch to help with getting the drill bit started.

01-31-2017, 12:55 PM	#1
Cflanery88 Name: Cflanery88 Title: Too Much Time Status: Not Here Join Date: Feb 2016 Location: Shelby, MI 49455 Member`s Gallery Posts: 536	Drilling steam holes in a 5.9 CR Head So I've searched and read many threads but can't seem to find exactly what I'm looking for. I'm getting ready to drill my 06 24v head for the steam holes(as it is going on a 6.7 block), and have everything marked and ready to go just wanted to know if someone had an exact measurement of the steam holes in a 6.7 head or size they should be drilled to. My initial plan was to just drill them large enough to where the gasket still sealed but I don't want to remove more material than I have too. And would also like to know about how deep The coolant jacket is from the surface of the head? Any information or insight on the matter is greatly appreciated.

01-31-2017, 01:56 PM	#2
chris lang Name: chris lang Title: Too Much Time Status: Not Here Join Date: Jun 2010 Member`s Gallery Posts: 843	No real information, but I had Bruce block at b&b tooling do mine. I have the head on already so I can't measure anything for you. But he's in Michigan. __________________ Don't take what I post seriously; 60% of the time I'm drunk all the time

01-31-2017, 05:55 PM	#3
SKYNYRD Name: SKYNYRD Title: "Drunkard" Status: Not Here Join Date: May 2007 Location: Harpers Ferry, WV Member`s Gallery Posts: 5,666	If you have the head gasket just place it on your head using a couple head bolts to keep it in place. The only question then would be the depth to drill. __________________ Leonard 79 VW rabbit diesel (ALH & 4motion ) 04.5 rclb 4x4 01 & 03 VW Golf TDI 05 rcsb 2wd (in progress) ROSKOE115: "It's ain't avatar material but I'd hit it!"

01-31-2017, 06:54 PM	#4
zstroken Name: zstroken Title: For $$$ your name here Status: Not Here Join Date: Sep 2006 Location: Western Michigan(by the lake) Member`s Gallery Posts: 23,151	Just drill slow, size really isn't that important, you are primarily just keeping water from getting trapped in that area. I forget what size hole mine were. Mine were drilled on a 24V VP head. __________________ 2008 4x4 Megacab, 68RFE 97 Dodge gone.... 24V P-Pump Mafia member #1(retired) Thanks to Mumau Diesel, Goerend Transmission, Northeast Diesel Service!

01-31-2017, 07:14 PM	#5
SKYNYRD Name: SKYNYRD Title: "Drunkard" Status: Not Here Join Date: May 2007 Location: Harpers Ferry, WV Member`s Gallery Posts: 5,666	I would say for the size of the hole I would go with the small of the hole in the block or the hole in the head gasket. __________________ Leonard 79 VW rabbit diesel (ALH & 4motion ) 04.5 rclb 4x4 01 & 03 VW Golf TDI 05 rcsb 2wd (in progress) ROSKOE115: "It's ain't avatar material but I'd hit it!"

01-31-2017, 09:34 PM	#8
Cflanery88 Name: Cflanery88 Title: Too Much Time Status: Not Here Join Date: Feb 2016 Location: Shelby, MI 49455 Member`s Gallery Posts: 536	Thanks guys.

02-07-2017, 07:50 PM	#9
Cflanery88 Name: Cflanery88 Title: Too Much Time Status: Not Here Join Date: Feb 2016 Location: Shelby, MI 49455 Member`s Gallery Posts: 536	Drilled my head tonight. I ended up having to free hand it cause it wouldn't clear my drill press, but it ended up turning out very well. I drilled them with a 3/16" drill bit using a smaller bit first. I didn't measure the depth to the coolant galley, but you don't really need to worry about that cause there is plenty of room after the bit makes it through on the intake side. The exhaust side on the other hand is a bit tricky cause I broke two bits due to the slope in the galley as soon as the bit makes it through. The bit would want to catch and beak the tip off the bit. I could see using a drill press and a marked bit for correct depth being way more accurate and save your drill bits. __________________ 06 Dodge Ram 2500 6.4L, Wagler +.080 rods, Hobbit tuned, Exergy150% injectors,Polished s475/87 1:0 A/R Engineered Turbo Billet Wheel,arp625s,14mm main studs,PPE dual fuelers,Hamilton 188/220,extreme pushrods,Fleece bypass/drains/distribution block,110#springs.

02-07-2017, 08:03 PM	#10
biggy238 Name: biggy238 Title: Too Much Time Status: Not Here Join Date: Aug 2008 Location: Just North of Wrong Member`s Gallery Posts: 10,862	Good info. You just used a gasket to mark the locations? Sent from my XT1575 using Tapatalk __________________ Check out @bdmaximusworx 05.5 Campanella White TDi Jetta 5spd 45.5MPG -Little Sexy '10 Silver F250 CCLB 4X4 6.4L cummins Swapped Insta @trash.panda250

02-07-2017, 08:16 PM	#11
Cflanery88 Name: Cflanery88 Title: Too Much Time Status: Not Here Join Date: Feb 2016 Location: Shelby, MI 49455 Member`s Gallery Posts: 536	Yeah I used a factory 6.7 gasket, lined everything up, and then used a marker to mark the location of each hole on the head. Then followed up with a spring loaded punch to help with getting the drill bit started. __________________ 06 Dodge Ram 2500 6.4L, Wagler +.080 rods, Hobbit tuned, Exergy150% injectors,Polished s475/87 1:0 A/R Engineered Turbo Billet Wheel,arp625s,14mm main studs,PPE dual fuelers,Hamilton 188/220,extreme pushrods,Fleece bypass/drains/distribution block,110#springs.