Engine/Transmission (1994 - 1998) 12V 53 Blocks

[RSchwarzli]

After reading the article in issue 60, under the 12V section, Joe Donnelly describes what a 53 block can be identified by.



My question is, I have the stiffening rib 10" above the pan, the drilled holes and the second oil drain hole. I have everything Joe described as a Storm block EXCEPT for the 53 in the drivers side of the block. What gives? Is it a Storm block or not? As my block was cast in 97 (motor build date of Nov 97) is it possible this is one of the motors that was updated to the new style, but prior to the 53 castings? Anyone have any thoughts?



Thanks!



Robert

 

[RSchwarzli]

Here we go!

 

[Glen Pratt]

I'd like to know too. My truck build date was the same as yours.

 

[Forrest Nearing]

I believe there are early non-storm blocks...



I wouldn't worry though, the 12v's don't seem to be nearly as prone as the 24v's to cracking 53's. I've had two 98's with 53 blocks, and I wouldn't turn down another over a 53

 

[Shadrach]

The Storm block came out in May 97. All blocks produced after that date are Storm blocks. They can be identified by the dual turbo drain holes. This gives the block more versatility for different applications, such as some tractors which have a front out exhaust. There is also a 3/4 NPT plug near the oil cooler. This is used for a coolant heater. It makes it much easier to change the heater. It also has only 3 frost plugs there instead of 4. There were several other minor differences as well. There were several plants where the blocks were made. The "53" was a production run from the Brazil plant. Therefore not all Storm blocks were "53"s. If it doesn't have a "53" on it you won't have the cracking problem. I have seen blocks with numbers 53, 55, etc and some without numbers. They were cast too thin in that area and could crack when operated under heavy loads, such as towing in hot weather up a mountain. I have seen these blocks in motorhomes as well. It's just like the KDP, not everyone fell out, although I would check the pin. Shadrach

 

[edgeman]

I don't get this "storm block" Thing... . I have a 97 ram 3500 and was wondering if you could give me a little insite about the engine!

 

[Forrest Nearing]

Straight Thread O-Ring Metric fittings



vs. pipe thread