Lee I ground pretty easily with a die grinder ,just not enough about 3/4" down so something to get the right angle might help me. My problem was I thought I had ground enough so assembled heads on it and didn't want to burn a set of head gaskets and time to reclean the heads to grind more.
I do have a Isky piston notching tool I've let some of my 409 guys borrow to notch the block for the exhaust valve when using a big cam. Over .520ish the exhaust valve hits the combustion chamber built into the block. So passing it around wouldn't be an issue. Not sure if the drill wears it out after awhile. Comp makes one for old iron SBC heads.
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Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune [email protected]
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
1964 Corvette Coupe 327 4 speed
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