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.

1g 7bolt head on 1g 6bolt block

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

RickClarke23

15+ Year Contributor
93
2
Apr 5, 2004
Bishop, Texas
ok I have a 93 Tsi fwd that i just bought (auto) and the motor has rod knock really bad.....now i know it is a 7bolt block and i can get a 6bolt from a friend very cheap. So my question is this......do the 6bolt and early 1g 7bolt blocks interchange without and machining of the head bolt holes? I have searched and found mixed answers about this..........can I just swap in a 6bolt block and bolt it to my 1g 7bolt head without any modifications?
 
you will have to drill out/inlarge the holes in the 7bolt head for the 6bolt head bolts/studs. not really that hard. we used a drill press and had it done in about 20-30 min.
 
The reason it's disputed is because it is possible to put the head on without enlarging the holes. It takes some time and force but it can be done. Just bore them out.
 
RickClarke23 said:
ok I have a 93 Tsi fwd that i just bought (auto) and the motor has rod knock really bad.....now i know it is a 7bolt block and i can get a 6bolt from a friend very cheap. So my question is this......do the 6bolt and early 1g 7bolt blocks interchange without and machining of the head bolt holes? I have searched and found mixed answers about this..........can I just swap in a 6bolt block and bolt it to my 1g 7bolt head without any modifications?

why not just drop in the 6bolt, the head on the auto has less agressive cams!
 
Why not just get the 1g head now that the engine is gonna be out? Go to a salvage yard or somewhere and get a 2.0L head even off a non turbo dsm and just put your cams in...
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Build Thread Updates

Latest Classifieds

  • 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
  • For sale Coilover Springs
    Used pair of Eibach coilover springs from an old set of Ground Control coilovers. 2.5" inner...
    • RamenPride
    • Updated:
    • Expires
  • For sale 4G63 Mitsubishi logo early valve cover
    Early Mitsubishi logo valvecover. “1990” All threaded holes are good. Has the 90 style vent...
    • Galant665
    • Updated:
Back
Top