So I am in the process of pulling the engine out of my 88 7mgte. I bought it with a blown head gasket a while back and me and a friend fixed it. We shaved the head and used a stock gasket. Now i was thinking about getting a metal head gasket while i had the engine pulled. I figured i could get the block shaved while its out since i didnt have enough money for it last time. Now my question is if i remove the head will i have to get that shaved again too? It doesnt have a bhg or anything. i was just curious if i would have to. It would make me decide whether or not i would take the head off or not.
Pulling engine possibly deck block
- Thread starter icey756
- Start date
What he is saying is you need to make sure that the decking on the head you already had done was sufficient for a good seal on a metal head gasket. You should find out from the machine shop how much they took off your head and make sure you tell the guy doing your engine so that they don't end up taking off too much.
Ra is roughness average.
The cleaner and flatter the head is the better it's going to seal.
Every time you pull the head off it should be machined before it going back on.
The cleaner and flatter the head is the better it's going to seal.
Every time you pull the head off it should be machined before it going back on.
then i guess i wont be able to take the head off. When i got my head back from the shop he told me that he had to take off almost the maximum he could to get it flat. I guess he has some sort of book that tells him? idk. But if i have to get the head machined if i take it off i cant afford to do that anyway. Im very low budget again since im in school
icey756;1806675 said:
Very low budget, rebuilding a good running block, head probably shouldn't be machined again, but now has to be, debating new internals, boring the block...
What?
This won't end well...
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if the bottom end is in good shape then just let it be and get the block and head machined. throw a MHG and some arps on there and have a nice day. spend that extra money on putting the engine back together (I.E hoses, gaskets, hardware) your bound to run into some unexpected gremlins. heck go crazy and switch it over to synthetic while your at it 
yes they will. for real though, your overdoing this.degrease and pressure wash the block tape it up and spray it with rattle can. high temp primer and high temp engine enamel. you will be surprised how good it actually looks if you do it rite and take your time. im going to be doing the same thing when i get back in country. my engine is fine, im just going MHG and arps so im getting the head and blocked decked and replacing seals (front and rear mains, cam seals, ect..) its cost effective and will look great, while you got the engine out degrease and pressure wash the engine bay. it makes a world of difference. take pics