Block posting or Block guard?
something different
Joined: Sep 2002
Posts: 6,995
Likes: 1
From: grand rapids/chicago, usa
if you get a block guard, install it and then have the cylinder's rebored, as installing the block guard will most likely distort the cylinder walls. you might want to look into doing both block posting and a block gaurd. if installed properly, people have had good results with block guards. make sure you get a GOOD block guard that is designed properly and doesnt completely obstruct coolant flow. i forget what the good brands are......i believe str and golden eagle have good ones. i cant remember right now.
Honda-Tech Member
Joined: Aug 2002
Posts: 2,959
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From: Hiboosta, IL, USA
Re: (joesefcivic)
http://www.homemadeturbo.com has an article on block posting, it's really a toss up if you ask me. When something like a blockguard enters the market at a relativly low costs of course there are going to be people who buy it and dont install it right causing horror stories.
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Joined: Apr 2004
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From: king george, Va, United States
Re: (beta13)
no matter what you do, you must hone the block after doing either block posting, or installing a block guard. Honda engines are specific to .001" so anything that touches them calls for a hone to true everything up. Also, when choosing your block guard you dont want the kind that you hammer into the block. You need the kind that you Drop in and is welded in. Forcing someting into a motor usually isnt a good thing... people see all kinds of problems as a result.
a/k/a Jomo
Joined: Jan 2002
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Re: (B18Tahtaras)
Personally I think posting and block guards are a waste of money.
If the block guard is of quality is should "press in". There should be no hammering involved, unless your sleeves are warped or the block guard is junk. Also you do not need to have your cylinder walls honed either after installing a block guard. I'm not sure where that bit of info came from, also OEM Honda tolerances are not with-in .001". Their range is MUCH broader then that. They have a factory tolerance level margin you can go by, not a specific figure.
If the block guard is of quality is should "press in". There should be no hammering involved, unless your sleeves are warped or the block guard is junk. Also you do not need to have your cylinder walls honed either after installing a block guard. I'm not sure where that bit of info came from, also OEM Honda tolerances are not with-in .001". Their range is MUCH broader then that. They have a factory tolerance level margin you can go by, not a specific figure.
Joined: Apr 2004
Posts: 345
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From: king george, Va, United States
Re: (Mr Milano)
When ever you do anything that touches the cylinders there is the possibility of distorting the cylinder wall... you ALWAYS want to hone after doing such a task. Never cut corners when building, weather it be a low budget build, or a high end build.
In alot of cases the problem with block gurads is they expand faster then the Cylinder wall,a nd then cause a pinch effect, sometines this cracks the Piston ring seat, causing scaring on the cylinder wall... not the best thing in the world for a motor.
You dont have to go best of the best with your hone, even the flat rate cheap-o jobs, get it done, its just an extra percaution that should be thought about.
In alot of cases the problem with block gurads is they expand faster then the Cylinder wall,a nd then cause a pinch effect, sometines this cracks the Piston ring seat, causing scaring on the cylinder wall... not the best thing in the world for a motor.
You dont have to go best of the best with your hone, even the flat rate cheap-o jobs, get it done, its just an extra percaution that should be thought about.
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