Optimal Squish
#6
Keep in mind that .035 is the minimal safe piston to cylinder head clearance. I like a little more of a safety margin myself... mine will go together at .044 (piston .005 in the hole and a .039 gasket). But then again, mine will be blown so a tight quench isn't really necessary.
Just my thoughts... by far no expert.... just my experiences.
Just my thoughts... by far no expert.... just my experiences.
#7
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Joined: Aug 2011
Posts: 2,733
Likes: 8
From: bel air, md
Keep in mind that .035 is the minimal safe piston to cylinder head clearance. I like a little more of a safety margin myself... mine will go together at .044 (piston .005 in the hole and a .039 gasket). But then again, mine will be blown so a tight quench isn't really necessary.
Just my thoughts... by far no expert.... just my experiences.
Just my thoughts... by far no expert.... just my experiences.
#8
#9
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Joined: Nov 2005
Posts: 2,399
Likes: 15
From: Toronto, Canada
quench/squish supports combustion process by squeezing the charge into the chamber where the spark occurs, also has a cooling effect as the quench area runs cooler than the rest of the combustion area... this will allow for a higher compression ratio to be used and aid in the quality of combustion achieved... properly designed quench is like upping the octane, promotes a better burn!!
#10
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Joined: Nov 2005
Posts: 2,399
Likes: 15
From: Toronto, Canada
"Zero" decking the block will allow tuning quench with the head gasket, the proper spec for desired quench is a debate that's been around since Chrysler was a cowboy!!! compression ratio and chamber design are factors but on average .035-.060 what I've seen in the field




