block and head surfaces

[ians13]

well i took apart my jdm motor today. to fing a realy bad looking hg. well after cleaning the surfaces i pulled out the stright edge to check for warpage it seemd to ne realy good the smallist gauge i had would not go between the stright edge and the block or head, i know am not a machinest but they seemed to be real good.

i was suprised to see how bad the hg looked i forgot my camera home so no pic's sorry.

 

[Boost Lee]

So how is this technical? Well anyways, yeah, JDM motors FTW!
Machining specifies stuff like this down to like the bizillionmilliontrazillionth of an inch () so don't let the naked eye fool you...

Jeff

 

[Fletch124]

It may look straight but it needs to be machined IF your using an MHG.

 

[ians13]

So how is this technical? Well anyways, yeah, JDM motors FTW!
Machining specifies stuff like this down to like the bizillionmilliontrazillionth of an inch () so don't let the naked eye fool you...

Jeff

beats the crap out of me.

 

[Boost Lee]

Hey it's cool man. Just be sure to get your head and block niiiiiiiice and pretty looking (to the point your eyes are satisfied) and as long as your not using an MHG, you'll be good.

How much boost were/are you running, BTW?

 

[tte]

Welll you could get feeler gauges and slide them between the straight edge and your block. That should give you an idea if if you out of spec. If you had the right tools and a dial indicator you would be able to check it by yourself.

But you could just take it to a machine shop just to check for straightness. I am sure it wont cost much.

Cheers,
Roy

 

[ians13]

i was at nine with the old motor i plan on running 12-14psi, but i need fuel up grades first. just want to get this thing running for now.