1995sir

i just bought an ls/vtec conversion kit from Golden Eagle, my question is, do i need to drill out the hole on the bottom of the head before i tap it or can i just tap it as is? i wanted to get the head on tonight and dont know the answer to this question get back at me so maybe i can still get it on

mvm

Just tap it. With the Golden Eagle kit, there is no need for drilling.

mvm

Here is a post I did on my own forum a little while back. I chose to do the LS-Vtec Conversion the Old School way.

You have no need for drilling the head with the set-up you have.

Merrimack Valley Motorsports - Preparing a B16 Head for LS-VTEC
March 27, 2006

<u>Keeping it Simple</u>.


<u>Step 1</u>
This is your basic B16 head in mid tear down. Pretty much exactly how you should have it sent to the machine shop before setting it up for an LS-VTEC conversion.


<u>Step 2</u>
Hot-tanked and cleaned, ready for installation.


<u>Step 3</u>
Now, looking at the bottom of our B16 cylinder head, you should notice the oil feed journal which you do not have on your Non-Vtec cylinder head (Marked in RED). You are going to block this for our Vtec conversion. To do this, you must thread this journal using a 1/8" pip tap and inserting a 1/8" Allen pipe plug.

<u>Step 4</u>
You should now remove the Allen plug from the Intake side of the cylinder head (Marked in BLUE). After that you must insert a -6AN to 3/8" fitting in this location. This is where your new oil line feed will run into.

<u>Step 5</u>
The dowells from the exhaust side must be removed and soon to be used on the intake side (Marked in GREEN). This is so the Vtec head can be mounted and lined up properly on your Non Vtec Block. Drill the head stud holes on the intake side to 14MM wide and only 10MM deep.


<u>Step 6</u>
Have the head surface 1K, to eliminate all the rough edges and old head gasket material. It should look like this when done.


CYLINDER HEAD OPTIONS
These are the most common (but not all) vehicles in which to find a DOHC VTEC B-Series head:
B16A JDM 1989-1991 Civic SiR/SiRII/CRX SiR
B16A JDM 1990-1993 Integra Rsi/Xsi
B16A JDM 1992-1995 Civic SiR/SiRII
B16A JDM 1992-1995 Ferio Si/SiII/SiR/RTSi 4WD
B16A JDM 1992-1997 CRX del Sol SiR
B16A JDM 1996-2000 Civic SiR/SiRII
B16B JDM 1998-2000 Civic Type-R
B18C JDM 1994-1995 Integra Si-VTEC
B18C JDM 1996-1997 Integra SiR-G
B18C JDM 1996-2000 Integra Type R
B16A3 USDM 1994-1997 del Sol DOHC VTEC
B16A2 USDM 1999-2000 Civic Si
B17A1 USDM 1992-1993 Integra GS-R
B18C1 USDM 1994-2001 Integra GS-R
B18C5 USDM 1997-2001 Integra Type R (exclude 1999)