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- - Need help identifying head (https://www.miataturbo.net/engine-performance-56/need-help-identifying-head-26301/)

thymer

09-22-2008 05:50 PM

Need help identifying head

2 Attachment(s)

So I got a reman head from Clearwater and noticed it was a little different. My head's PN is BP05-4-2 and the new one is BP05-4-1. The only physical difference I can see is the water port on the back. Anybody know what the deal is? What's the extra water port for?

thanks!

olderguy

09-22-2008 06:12 PM

If everything else is the same, the extra port can feed your heater core when you do a coolant reroute.

MattEGTR

09-23-2008 12:51 AM

That was an Escort GT/Protege head, the small water port feeds coolant to the IAC valve, the large one to the oil cooler.

oilstain

09-26-2008 09:34 PM

Uh...http://img206.imageshack.us/img206/8...kfigurejh9.gif

quadmasta

09-27-2008 08:56 AM

Check the distance from the lower intake manifold stud to the bottom of the intake port and make sure it's the same.

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