Technical > Matt Shaff's Engine Shop

Teardown surprise

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janjon:
Thanks to all for the input! Now I feel gooder about trying to fill the hole.
John

janjon:
Now to the flat-top side of the equation... the intakes measure about 2.070 at there largest diameter, you could get about a .015" feeler gauge between the intake and the exhaust valves on any given cylinder, and the edges of the intake valves hang about 1/64'' or so below the deck of the head. This would seem to indicate that the heads were decked severely to gain compression ratio with the flat-tops.  Any thoughts here?

dreracecar:
"Clay" the piston to valve clearence

JrFuel Hayden:
We learned another tip on measuring p-v clearance, from a well know race motor builder, insert a 5-6" of solder into the spark plug hole, hand rotate engine, pull out solder and mike it, a simple clean way to get the clearance. Just insert it twice, one toward the intake valve, 2'nd toward the exhaust.
Again, the more compression the better when burning alky.

Have Fun !

Jon

hotrod316:
jon
 a smart man once said shut the pie hole and open the two holes on your side of your ace ::)
your solder tip into the spark plug hole will be use this weekend  :D may have just save some money to go racing on 8)
 as always
thank you for your time
steve m.

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