Quote:
Originally Posted by Jeff Teuton
I think 287 is the casting #.
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After calling the MP tech line, I can confirm that yes 287 is the casting #
Kevin said that it has been used for 5 part # s over the years
Current part # P4529993
Which lead to the final question for the head guys, can you install smaller valves?
4529993 stage V for 2.14 intake and 1.81 exhaust,
The discontinued 4529992 was for the 2.08/1.74