biknut
Well-Known Member
This head should increase compression, and hp. According to instructions you need to check the squish, and possibly adjust the squish if necessary.
Manic Mechanic calls for a 0.030" deck height/squish measurement. Your must have a piston with a 0.160" crown height.
If the clearance is more than 0.030", you'll need to lap the top of the cylinder with sandpaper on glass to reduce the clearance, or if it's not enough, maybe add a thicker head gasket to increase the clearance.
I made my measurments using used base and head gaskets. My squish measurment was 0.27"
I'm calling this good enough. Since I'll be installing new gaskets, the clearance, should end up a little more than I measured with used gaskets.
What this diagram from the Manic Mechanic site calls deck height, I call Squish. This is the clearance we're wanting to measure.
Make sure you're piston has a 0.160" crown height.
We're going to measure the gap between the top of the piston, and this part of the combustion chamber, called the squish band. It needs to be 0.030"
What we're going to do is place solder on the piston top using grease to hold it in position until we get the head tightened down. This solder is 0.036" diameter.
Next, torque the head down. 120 in lb should be enough
Manic Mechanic calls for a 0.030" deck height/squish measurement. Your must have a piston with a 0.160" crown height.
If the clearance is more than 0.030", you'll need to lap the top of the cylinder with sandpaper on glass to reduce the clearance, or if it's not enough, maybe add a thicker head gasket to increase the clearance.
I made my measurments using used base and head gaskets. My squish measurment was 0.27"
I'm calling this good enough. Since I'll be installing new gaskets, the clearance, should end up a little more than I measured with used gaskets.
What this diagram from the Manic Mechanic site calls deck height, I call Squish. This is the clearance we're wanting to measure.
Make sure you're piston has a 0.160" crown height.
We're going to measure the gap between the top of the piston, and this part of the combustion chamber, called the squish band. It needs to be 0.030"
What we're going to do is place solder on the piston top using grease to hold it in position until we get the head tightened down. This solder is 0.036" diameter.
Next, torque the head down. 120 in lb should be enough
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