mopar superstock only casting # 4532287
 

This casting is listed on the NHRA's 1970 listing for big block heads casting #'s.

D = 2843906, 3462346, 3751213, 4006452, 3769902, 3769975, 4120187, 4532287(SS ONLY)

Anyone know if this is the old PN for the stage 5 head?

Thanks

Re: mopar superstock only casting # 4532287
 

Yes, and they are still available if MP is still there.

Re: mopar superstock only casting # 4532287
 

Jeff
Is there any advantage to the MP heads over say a 906 after being worked to the SS volume limits other than you are starting with new castings?

Re: mopar superstock only casting # 4532287
 

Don't know about the 287's, but I have a set of 2402286 with a 1-1-7 date code (assume that is Jan 1 1967)in the shop to freshen up for a customer. No doubt about it...They are a Max Wedge.

Re: mopar superstock only casting # 4532287
 

I'm showing P4529992 as the part number,is this current??

Stewart,you have a PM...

Re: mopar superstock only casting # 4532287
 

I think 287 is the casting #.

Re: mopar superstock only casting # 4532287
 

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

Re: mopar superstock only casting # 4532287
 

And we can't use these in stock because....