DeTomaso Mailing List: August 99, Message #194

Tom, you should have no problem since your cam is not over .600 lift.  If
you want to check, then put one head on withouth the gasket, and assemble
the valve train on one cylnder.  A small ball (1/2 inch) of modeling clay
should be placed in the valve releif in the piston.  Roll the engine over
by hand and then take the head back off.  Using a punch, measure the depth
of the clay where it was pressed in the valve relief.  Without the gasket
it should be about .020 minimum.  This will give .060 with the head gasket
installed.  Less and you will have to cut the piston accordingly.

Dave "no problem with my dished pistons" D

At 12:21 AM 8/4/99 -0400, you wrote:
>  I am building a cleveland , the machine shop installed stainless single
>groove valves with the 2.24" intake from Manley.  I am using K.B.
>hypereutectic pistons at .o30" over.  I am also using the Cam Research
>290/300, .540"/.560" cam.  Will the valve reliefs in these pistons
>accomodate the larger intake valves?  Should  I enlarge the notches in the
>block?  Any feedback would be greatly appreciated, Tom
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