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Casting numbers

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Perplexed

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"I have twin 318s (I think

"I have twin 318s (I think) with Paragon Vdrives. I have data tags on the drives themselves, but nothing on the engines other than the casting numbers on the block. Do you know of any way to determine what engines I have here?"
 
What are the casting #s?

Ch

What are the casting #s?

Check for displacement numbers under the front of the left (1-3-5-7) head.
 
Starboard: 2536030 318-6. Port

Starboard: 2536030 318-6. Port: 2536030 318-3. Vdrives are matching serial numbers model PV33.
 
I believe those are the LM ser

I believe those are the LM series. You can determine it by the 4 exhaust ports on your heads.If the center ports are closer together then it is the LM series and if the ports are evenly spaced then it is the M series. You can call Earl at 586-468-0937 to make sure I have it right.
 
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