M758

Guys,
I just did a little detailed inspection of my 83 944 parts car.
Turns out the P/O just installed a new waterpump & timing belts and a replaced the head. Makes sence since he gave me a headwith broken stud when I bought the car. Anyway it looks like guy replaced he head with a 951.xxx. part number head.

Aside from valves & valve springs anything difference about a 951 head from a NA head?

My guess is no!

pete944

Ceramic exhaust ports. I think they're the same other than that.

EDIT- I believe the cam profile is slightly different but don't quote me on that.

SidViscous

"I believe the cam profile is slightly different"

pete944

Ha ha.

BeerBurner

Zing!

BB.

M758

Thanks for the info, but I am pretty sure the car has the orginal cam. It looks like the guy was doing a headgasket and messed-up the head. Then went at go a 951 head as a replacment. I am not certain about valves or valve springs (could be 951 or 944), but I'd guess the cam and cam tower are original.

So aside from valves & valve springs what is different?

Just the coating on the exhaust ports?

Danno

"Just the coating on the exhaust ports?"

The 951 cam is same as early-944NA cam. Also...

- Sodium-filled exhaust valves

M758

Thanks Danno,

But is the machined aluminum casting that is the head any different?

Yes or no? By the silence it seems the answer is no?