Guest Anonymous Posted June 9, 2000 Share Posted June 9, 2000 Hi Guy's, I'm trying to figure out what engine I have. The casting number by the bellhousing is 3970010. This means its a 350ci engine with 4 bolt mains. Actually from what I hear, just about all of these castings are machined for 4 bolt mains. However there is some instances where it could also be a 2 bolt main block. The deciding factor is based on the engine number located on the front right side below the alternator. This number is V0427TYY followed by C72183818 on the next line. The stock intake has casting number 3919803. If you know of a way to determine the year and model of the car or truck that this engine came in, I would like to know. I tried taking the numbers to the Chevy dealer here in town, but they were unable to find any thing on this engine. Suggesting it may have come from a crate motor. Thanks, Dennis btw, the car is a 72 240Z, which actually was listed on this board. I bought it for $500 and had it running in less then 10 hours. The time included towing the car home from San Jose, Ca. Quote Link to comment Share on other sites More sharing options...
SpeedRacer Posted June 9, 2000 Share Posted June 9, 2000 Dennis, Check out this site http://www.mortec.com/castnum.htm but you are right, it is a bit confusing. It says that it can either be a: 3970010....302.....69....4...Z-28 Camaro 3970010....350...69-80...2 or 4 If that thing is a 4 bolt 302 it is worth a lot of money (if it is in good shape)!! The local guy here wanted $1,200 just for a NOS crank! Quote Link to comment Share on other sites More sharing options...
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