Excellent point, Chev Nut. I neglected to state that the target gauges I copied & produced were for the 216" engine. Thanks for pointing that out. There were seperate gauges for the 1934 Master, Standard, 1935-'36 and 235" cars & trucks with oil pan pipe assy's.
Kent Moore sold a 3-piece gauge set (J969) for checking the nozzles & dippers on the
216 engine. The set consisted of:
J969-1 Target Gauge - used for aligning the oil pan pipes assembly.
J969-2 Oil Pan Trough Depth Gauge - for checking oil trough depth and dipper heigth
J969-3 Oil Line Nozzle Depth Gauge - used to ensure oil pan pipe nozzles clear the dippers.
Chevsofthe40's will sell the 216 ('37-'53) gauges for $435.00 or will rent them for $35.00 + postage. The Filling Station and others may also offer this service.

-Bob