heres some closer pics

what does lapping consit of? how do i do it?

im going mhg

Welp atleast most of that will be removed during the machining process.
So you have nothing much to worry about with the head.

But lapping the block is an entirely different story. It's not a quick job. I sanded on mine for a good while. You'll need a machined straight edge and a feeler gauge. You're going to need a sanding block long enough to lay across the block.

You have to remove the feeler or guide pins on the front and rear of the actual block. You'll need to stuff your cylinder walls with trifolded towels and you want to drop a bit below tdc. So you don't sand on 1 and 6.

Do yourself a favor and pull the damn thing and take it someplace and have it done right if you don't think you can handle it. It takes a bit the first time and you want to do it 1 fail swoop. Don't tear it down and let it sit for a few months.

I spent the better part of a year planning my build. It's nearly completed.

Good Luck.

did you read this full thread supramacist? i have a jdm engine sitting on my garage floor and the picture of the head is after they got done maching

Best of Luck.

I wouldnt use it until that gauge is out of it. But if the machine shop said it was ok, you could press your luck.

I'm leaving this open but if people start fighting, I'll lock it.

Re-machine the head man.

No I hadn't read it all the way through. I had been following loosely.
Unless you caused the damage the machine shop should repair the head.

I can't believe a machine shop would let you have it back with that gash in it.

and another thing is that they didnt tell me how much they took off when i got it machined. they couldnt remeber

:eek3: Uhh, thats kind of important. Now you have to measure the head and compare to what it is stock. I would not do business with them anymore. Take it to another shop and have them look at the gash in the head and tell them to machine it more if they need to.

My machinist took his time with my parts and I didn't get all of my bolts back.

But the head looked sweeeeet. That gouge..., I couldn't lay it on an HKS MHG with good conscience. Definitely DO NOT take it back to the same machine shop.

Find another one. They will have to take it apart and redo it basically all again I would think. So you may as well concider a port and polish. It'll cost a little bit more but it should be well under and not over 500 bucks.

That way you'll feel better about the entire situation. I wish I would have done mine. I ported and polished the air intake. I used a dremel with the pencil grinder attachment and a bunch of flapper wheels. You can go to the nub with those things.

well fuck i cant go spend another 200 for another shop to do what the shop was supposed to do. thats how these fuckers make money. im taking it back to the shop i had it orginaly done so they can fix it for free. but deffintly im going to take the block to a diffrent shop. im so fuckin pissed about this whole situation. im mean its hard enough to find parts and money for this project and then have a bunch of cock suckers half ass what you cant do yourself. its fuckin bullshit!!! im still new to tuning and im workin my summers away making $8.00 an hour in a hot ass kitchen.


sorry for the ramble. i need to vent somehow