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deuce_roadster · 08-04-2020, 10:13 PM

33 and 34 blocks viewed from the front are different from the 35 and 36s because of the vent to the pan. The cavity on the passenger side of the block is more shallow due to the vent coming down to the pan. 33,34 equal depth.

08-04-2020, 10:13 PM	#16
deuce_roadster Senior Member Join Date: Oct 2011 Location: Shelton, WA Posts: 3,800	Re: 21 stud flathead 33 and 34 blocks viewed from the front are different from the 35 and 36s because of the vent to the pan. The cavity on the passenger side of the block is more shallow due to the vent coming down to the pan. 33,34 equal depth.