|
Author
|
Topic: Drilling steam holes ???
|
MAV
Gearhead Posts: 209
From: Macon,Georgia, U.S.A.
Registered: Mar 2002
|
posted 03-13-2005 02:34 PM
   
I`m about to install a set of DOOE 351w heads onto a `68 302 block and I`m wanting to
match up the small coolant (steam)holes from head to block... the block has a hole about 3/8 at 12 oclock position bove each cylinder. The heads DO NOT have this hole.
I noticed that the area in the deck of the heads were this hole should be is DIRECTLY below the intake runner holes . It looks like this area of the head is not very thick. Before I drill a matching hole into
my heads I need to know if I will drill into a water passage on the head or if drilling here would only lead into an Intake port???
IP: Logged |
Moneymaker
Administrator Posts: 25883
From: Lyons, IL, USA
Registered: May 99
|
posted 03-13-2005 02:58 PM
Why?
Why do you want a steam hole at all?
Use good gaskets and don't worry about it.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
Bloose
Gearhead Posts: 621
From: Milwaukee, WI
Registered: Dec 2001
|
posted 03-13-2005 07:26 PM
When I put my E7 heads on my '68 block the steam holes did not line up. I used a gasket as a template and drilled the holes in the block to match. I doubt it was needed though. I just didn't know at the time. Take Alex's advice and don't sweat it.B-loose
IP: Logged |
MAV
Gearhead Posts: 209
From: Macon,Georgia, U.S.A.
Registered: Mar 2002
|
posted 03-13-2005 07:35 PM
Ijust figured that the Ford engineers thought they were needed, so I would make sure I didnt have them blocked.------------------
http://maverickgrabber.iwarp.com
IP: Logged |
n2oMike
Gearhead Posts: 2419
From: Spencer, WV
Registered: Jan 2001
|
posted 03-13-2005 07:53 PM
Ford put them there, and they can't hurt anything, so I go ahead and make sure they are there and line up. I'm sure there are plenty of engines running without lined up steam holes, but I'd rather be safe than sorry. AFR and Edelbrock heads have the big half moon shaped steam hole to cover all engines. I'm sure Alex has built plenty of engines without worrying about steam holes and never had a known failure.... so his practical experience probably holds true. Good Luck! ------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220
IP: Logged |
Moneymaker
Administrator Posts: 25883
From: Lyons, IL, USA
Registered: May 99
|
posted 03-13-2005 08:10 PM
FYI, I weld them up in all of my 289 heads.  ------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
MAV
Gearhead Posts: 209
From: Macon,Georgia, U.S.A.
Registered: Mar 2002
|
posted 03-13-2005 10:00 PM
Ok Alex ...I`ll bite , why do you go to the trouble of welding them up? 
IP: Logged |
n2oMike
Gearhead Posts: 2419
From: Spencer, WV
Registered: Jan 2001
|
posted 03-13-2005 10:26 PM
289 blocks have their steam hole at 12:00, and that's where the gasket always seems to blow. (top part of the head gets wedged up by the intake manifold) It's probably why Ford changed the steam hole on later engines... and moved it down to the side a bit. ------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220
IP: Logged |
427Fastback
Journeyman Posts: 80
From: N.Vancouver.B.C
Registered: Jan 2005
|
posted 03-14-2005 11:57 AM
Alex is correct.That combination does not need steam holes drilled.Some do need holes drilled.[eg..Edelbrock heads on some 289 blocks]Use a good gasket and dont worry about it....------------------
68 Fastback 427MR 4 spd.Deluxe interior,8000 tach,140 speedo,am/fm,tilt.
IP: Logged |
bifs66
Gearhead Posts: 250
From: Maryland
Registered: Apr 2000
|
posted 03-14-2005 08:52 PM
My old Ford "Muscle Parts" book has a chapter on putting 351W heads on 289/302 blocks and says nothing about "steam holes". Howerver, they do say (remember the book is from 69/70)to use 351W intake manifold gaskets (C9OZ-9433-A) to avoid leaks; and to use 289/302 head gaskets (C8OZ-6051-B). ------------------
Bernie Frank
66 Fastback restomod (12.8 @ 112mph)
85 GT (preserved)
2000 SVT CONTOUR
IP: Logged |
n2oMike
Gearhead Posts: 2419
From: Spencer, WV
Registered: Jan 2001
|
posted 03-15-2005 08:23 AM
If you want steam holes, just hold the gasket up to the head and block, and make sure one of those top three little holes in the gasket lines up with hole both in the block and the head. If not, drill either the block or head so steam can pass through.Good Luck! ------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220
IP: Logged |
Mustangsandmore Forums
