The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

head issues

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

narstygsxevo6

Probationary Member
6
0
Feb 28, 2012
roanoke, Virginia
I have a 99 gsx with a 7 bolt. My timing belt shredded up. And i have a 6 bolt head will it go on my 7 bolt and what parts do i need to get or mods do i need to do? Thanks for the help!
 
The 6 bolt head will bolt to your 7 bolt block.

If you do this, you should use the 6 bolt intake, the intake runner differ in size from 6 bolt to 7 bolt.

Also if you have the cam sensor behind the intake cam gear on your 7 bolt, the 6 bolt will not have the mounting bosses for that.
 
Thanks guys! Also its the stock head that came on the car. Ive got the 7 bolt motor swap n it. In 99 did they come with 7 bolts? And thaks again.
 
7bolts were 95 to 99 if im correct , and 90 to 94 had 6 bolt engines.

Come on, now.

1990~1992.5 were 6-bolts; ~1992.5-1999 were 7-bolts.

Since the original engine is a '99, the cam sensor will be on the passenger side of the head. Swap the '99 intake cam over to the 6-bolt head to retain the '99 cam sensor as well and you won't have to do any rewiring or mess with a 1G cam sensor at all.
 
I thought this was already mentioned...

The 2G thermostat housing will not work on the 1G head. By consequence, the 2G water pipe will not work with the 1G head. You'll also need to concern yourself with the extraneous coolant lines running to the turbo and the oil cooler. Here's a couple posts touching on these areas.
http://www.dsmtuners.com/forums/newbie-forum/418612-any-issues-procedure-putting-6-bolt-head-7-bolt-block.html#post152777544
http://www.dsmtuners.com/forums/newbie-forum/331265-1g-head-2g-7-bolt-block.html#post152387147
 
Last edited:
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Build Thread Updates

Latest Classifieds

  • For sale 4G63 Forge Motorsports BOV
    Original Forge Motorsports bov. Adjustable with over 80 clicks on the dial. Nice to use for...
    • Galant665
    • Updated:
  • Wanted 1g 1991 Black Cherry Eagle Talon
    5-speed
    • bamatalon
    • Updated:
    • Expires
  • For sale Misc Left Over Parts
    Hello, I have a few left over parts for sale, these do not include shipping, please pm me for a...
    • r3dmak
    • Updated:
    • Expires
  • For sale Alpha Injection Clinic 2200cc for 4G63 DSM/EVO
    I have a set of Alpha Injection Clinic 2200cc high z injectors for DSM/EVO. I am stepping up to...
    • spoolinpos
    • Updated:
    • Expires
  • Wanted WTB 2g half rad
    ISO of a 2g koyo half rad or something equivalent.
    • Michael Wucher
    • Updated:
    • Expires
Back
Top