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Re: Sounds like an .030" overbore 360 block

From: Brian Cooper
Date: April 18, 2001


It can't be a 360. The casting number is G340D33770150, but I am not sure about the letters, they are hard to read. It also has the smaller balancer and flexplate. The motor is going into the project truck. I think I misread the cyl. since I didn't knock the carbon off before I read the micrometer. That, and I almost always screw up reading a micrometer. I believe the 340 in the serial number is the tell tale here. What do you know about 904's. I got one in the deal with the motor. Are they worth using since it was free, or should I look for a 727?


Last changed: July 19, 2018