Is there a way to smooth my block fom a bhg without takin it out of the car? I'd really like to do this myself (hg job) but I feel like I'm guna hafta take it somewhere
Block machining
- Thread starter giterboosted
- Start date
Save some time effort and heartache and get it surfaced....
All it takes is one imperfection to ruin your day as an MHG will NOT conform to the deck and head surfaces if they're less than perfect.
If using a composite gasket you "may" get away with a clean up using a sharp scraper after checking that the deck is not warped.
All it takes is one imperfection to ruin your day as an MHG will NOT conform to the deck and head surfaces if they're less than perfect.
If using a composite gasket you "may" get away with a clean up using a sharp scraper after checking that the deck is not warped.
What all has to be offiially off before I take it to be machined, and what's this about getting my timing cover machined too
Pretty well everything, timing case is part of the deck and needs to be bolted on when the engine is surfaced or the head can't sit flat and will BHG in minutes.
I have not done it but I believe people have had success lapping the block. I am not sure what this all entails.
supradjza80;1535470 said:
Only really appliciable to a freshly surfaced block Dave, human physiology won't allow the surface to remain flat/true for long when lapping.
Think of lapping as a finishing process.
So is it a for sure definately thing that I HAFTA get the block machined? Cus I dot believe it's horrendously blown just a small leak
giterboosted;1535538 said:
Yes its for sure... (IF you want a MHG)
And please listen to us on this one.
Me of all people, IJ will back me up on this one haha
get your head and block machined and get a MHG.
I Promise you, you will not regret the MHG.
Just do it and remove that weak link....
Oh I'm no newb to mhg's, before it blew it was making ~400 rwhp, not really sure why it blew, don't junk the previous owner ever retorqued, but anyway I usually get tubby on here to do my hg jobs for me but I was guna try this one on my own and wast sure if I HAD to or not, one more question, how do I know what ra spec I need for a certain gasket?
When you buy the gasket it will tell you. The HKS gaskets seem to ask for 30RA while Titan/Cometic allow up to 50RA
giterboosted;1535803 said:
Someone correct me if im wrong but im pretty sure anything under 25-30 RA is good and will hold a MHG.
I know HKS has a specific RA limit on there gaskets that they recommend staying under, maybe thats where im getting
the 25-30? Regardless the lower the better.
Just make sure they have a 7M torque plate, if not, keep looking.
I see your in the georgia area so im sure supracentral could give you some
really good reputable machine shops, and others on here could too.
But anyways most machine shops will know what there doing, but dont be afraid to check there work...
When you get the head back, run your finger nail across the head and make sure it doesn't get caught.
Failure14;1535813 said:
So they're going to SURFACE the Block through a TORQUE PLATE are they?? :nono:
Giter/Everyone else: Please disregard EVERYTHING Fail posts in tech.
Not to be rude to failure but thanks, I was wondering bout that cus there's not really too many supras around here, and I'm still debating letting tubby do it, as he is a pro and is only about 50 miles away give or take
Very welcome!
Eventually people will learn if they don't know to just STFU, until then we try to keep a close watch on Tech to stop the stupid spreading.
Eventually people will learn if they don't know to just STFU, until then we try to keep a close watch on Tech to stop the stupid spreading.
Guys chill a lil on failure, I'm sure he/she didy mean to misinform me, an yea I usually call tubby at least once or twice a week, he's done all my major work that I don't know how/ don't feel like doing, him and his brother are the only ones I trust with my car for any length of time
Failure14;1536386 said:
And the OP never mentioned ANYTHING about having the block bored so why does he need to ensure they have a torque plate.
This is NOT going to turn into the standard Failure Bullshit argument thread and as he's been warned about posting misinformation in the Tech section before he gets a week off.