Mercury Cougar XR7 Convertible 1970.

Mercury Cougar XR7 Convertible 1970.
Mercury Cougar XR7 Convertible 1970
Visar inlägg med etikett cylinder head. Visa alla inlägg
Visar inlägg med etikett cylinder head. Visa alla inlägg

torsdag 1 augusti 2013

I have 351C-4V Closed Chambers heads!

My motor aint the original so i did some investigation of what motor i really have.
The heads have #4 on the left corner so i did know that it was 4V-heads but not if it was open or closed chambers.

I started to meassure the deck height to asure me about that it is a Cevelamd and not a 351M or 400.

Meassured several times and got 23,4 cm/9.2" each time. :)

Took pictures of the backside of the motor and found a chassi number for the car the motor was originally in OF....

Then i tried to see what casting number it was behind the starter, could only read DOAE,,,,

Pulled the valve covers to see the date code 9J9! :) :)

9J9 means 1969 sept 9:th, and is so called closed Chambers or Quench Heads.
Compression ratio is 11.0:1.