I had gotten a new dipstick and tube from a chevy dealer in N carolina, the part #1410541/MAYBE 91.THE DIMENSIONS 151/2 tip to top,17/8 tip to full,1 1/4 tip to add mark, and the tube looks to be 7 1/4 out of block, but it's dark in the garage so not sure. Hope this helps.The operators manual says 5qts, for the Thriftmaster,Jobmaster,taskmaster engines, 4qts for the trademaster, and 6qts for the loadmaster, and workmaster. The thriftmaster is a 235 and the Jobmaster is a 261. both 6cyl. the others are v8 engines.
