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Joined: Apr 2002
Posts: 2
Grease Monkey
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Grease Monkey
Joined: Apr 2002
Posts: 2 |
I posted a message a while back about my fathers 1939 Master 85 2 door 6 cylinder with the oversized engine (4" pistons). We are still wondering how rare this is and how it would effect the value of the car, which he is looking to sell. I have some serial numbers from the car and engine if that will help anyone. VIN# 21JB0111733, Engine serial# 2268441. It is the original engine that came in the car from the factory. He had to put a new set of rings in it years ago, this is how he knows the pistons are oversized. Any help would be appreciated. Thanks
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Joined: Nov 2001
Posts: 29,863
Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
Joined: Nov 2001
Posts: 29,863 |
Hi Shipperman: As stated in the replies to your question by others back on April 6th, your pistons cannot be 4" because the overbore (1/2") would definitely be into the water jackets of the cylinder block since the bore on a 1939 216 cu. in. engine is only 3 1/2". No doubt that the pistons are over size, but they cannot be 4"! Your engine serial number indicates that you do have a 1939 216 cu. in. engine however, and the VIN also indicates that your car is a 1939 Master 85. :eek: :confused: :confused: :confused: :confused: :confused:
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: Dec 2001
Posts: 10,379 Likes: 1
Technical Advisor ChatMaster - 10,000
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Technical Advisor ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379 Likes: 1 |
Hi Shipperman, Is it possible that the 4" has been confused with .040 oversize pistons? If the head is ever removed again, check the markings on top of the pistons and MAKE A MEASURMENT. Sure would like to know the ending on this story.  
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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Joined: Feb 2002
Posts: 1,178
ChatMaster - 1,000
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ChatMaster - 1,000
Joined: Feb 2002
Posts: 1,178 |
As antique mechacanic states, it is entirely possible that the pistons are over size to size0.040, it is also possible that your dad had to order a set of one time clean up rings for the car which as I recall were available for the 216 and to be used for an overhaul which took place after the engine had been bored to Maximum which is 0.040 
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