D15B7 MLS Headgasket question.
06-27-2017, 06:51 PM
#2
re: D15B7 MLS Headgasket question.
You can but it will up the compression that you will have to retard the ignition timing to avoid pinging (detonation) on high load/high rpm. The piston goes to .002" from deck height so the gasket is what provides your quench and squish zones.
The D16Z6/Y8/Y7 head gaskets are thinner than the graphite gasket that normally is on the B7. The B7 mls gasket is a thicker 4 layer mls. It's also known as the leak gasket as it was what was to replace the graphite one in the event of a HG leak. The thinner gasket reduces the quench below optimal specification and is why detonation is increased when used.
This is the OEM leak gasket (Ishino):
https://www.autopartsway.com/partdet.../pagenum1/tabs
Please note you need new head bolts if you are switching to the mls gaskets. it's part of the TSB 97-047 regarding the graphite gasket to mls gasket for 88-95 non vtec motors.
The D16Z6/Y8/Y7 head gaskets are thinner than the graphite gasket that normally is on the B7. The B7 mls gasket is a thicker 4 layer mls. It's also known as the leak gasket as it was what was to replace the graphite one in the event of a HG leak. The thinner gasket reduces the quench below optimal specification and is why detonation is increased when used.
This is the OEM leak gasket (Ishino):
https://www.autopartsway.com/partdet.../pagenum1/tabs
Please note you need new head bolts if you are switching to the mls gaskets. it's part of the TSB 97-047 regarding the graphite gasket to mls gasket for 88-95 non vtec motors.
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