I just bought a rebuilt motor and I was looking for info on the casting. People on here keep talking about BubbaF250's website and I can't find it. Can you help? Some of the threads I read don't make me feel good. My casting is D7TE-A-2-B, heads are D5AE-A2A, Block by Oil pressure sending unit says its from the MCC and 9. I guess these blocks are prone to cracking. Am I screwed.

I am finally ready to put this motor in and I needed to know what harmonic balancer to use. So I googled the casting date and started feeling sick. Should I send this thing back? Please help.

Josh.

P.S. does anyone know what harmonic balancer I should use?

 

D7TE-A-2-B block 351M 75-80 and 71-80 400. The 351M and 400 share the same block. the only difference is the piston and crank. Look for # at crank. They are on the first counterweight in front. D5AE heads are for 351M and 400. you can look at engine build date code but that won't reveal if it's a 351m or 400, just if you have the one for prone craking. It's locate at front left at the bottom of block arround 2-3" from the bottom of front face of the block. 77G19J on my block. Good rag with solvent.

 

Bubba's M-Block Ford V8 Workshop

 

MCC w/ 8-D-9 means its cast in Michigan April 9, 1978 so you should be fine block wise.

The following is quoted from www(dot)projectbronco(dot)com

*click below for the link*
Technical Atricles

" This nasty rumor got started because there were water jacket cracking problems associated with certain "M" block engines that were cast at Ford's Michigan (Code MCC) foundry prior to March 2nd, 1977. All "M" blocks that were cast at the Cleveland (Code CF) Foundry are okay. Your 78 or 79 "M" block should be just fine unless you have a very early model 78 Bronco made in 1977 or you are working with an older 351M/400. In this case, you should check your engine casting code to make sure it is okay. The casting code on the 351M/400 engine consist of 4 digits. The first digit is the year in which it was cast. The second digit is the month (A=January, B=February, C=March, etc....). The last two digits represent the day of the month the engine was cast. The casting code is located on the top rear face of the block right next to the oil pressure switch (See Fig. 4 below). Fig. 1 shows an "M" block engine with the casting code of MCC 7C01, which means it was cast at the Michigan foundry on March 1st, 1977. Fig. 2 showsthe casting code off of my engine, (MCC 9B28) which shows that it was cast at the Michigan foundry on February 28th, 1979. the "9B28" is upside-down because that is actually the way it appears on my engine. Yours may be right side-up as in Fig. 1 or upside-down as in Fig. 2. I have seen them both ways. "