What Head Have I Got ?

[Guest john]

Can anyone help with this ?

 

Today I stripped a pinto head ready for rebuild, having acquired it from a reputable member as a 2 litre. But while working I thought ''what if it aint ? ''

And I couldn't decide how to tell the difference.

 

Can anyone tell me how to work out from the numbers or measurements if its 2 litre, or 1.6 or what ever.? please.

 

Thanks in advance for any help.

John.

[Guest salty_monk]

John,

 

If you look in Haynes for the specs on the valve sizes & you have a set of vernier calipers you should be able to work it out from there as the sizes are different...

 

From memory 2L are 32mm & 36mm but I may be talking shiite...

 

Any numbers on the casting??

 

Dan

[Guest john]

Dan there's loads of numbers on the casting, what should i be looking for in particular ?

[Guest john]

ok, just been to measure them.

My valves are 36 and 42 mm at their max diameter.

 

My Haynes does not give this info in the valve spec section, bless 'em !!

 

so I 'm still no nearer.

[chris n]

Hi John

I know on the older engines the code for the heads are

 

1600cc 6

 

2000cc 0

 

You may be able to tell by the stamp for the unleaded codes next to number four spark plug hole

 

1600cc M, MM, N OR NN

 

1800cc S OR SS

 

2000cc L, P, PP, R OR RR

[Guest john]

Hi Chris.

It looks like i have an older head, there is nothing stamped by number 4 plughole.

 

I have found these at various points on the top.....

 

EB

 

20

 

74

 

0

 

70HM 6090-NA

[chris n]

Looks like it may be from a 20ltr Cortina with a head casting code of 0

but I could be wrong

[Guest salty_monk]

36 & 42 sounds like the 2L to me... Guess I got mixed up!

 

I think the info might be on Dave Andrews website as to which valves are in which head.... no time to look, you'll have to go search sorry...

 

Get to Dave Andrews from http://nw.rhocar.org

 

 

[chris n]

Will have a look at the codes on the engine at's in the Hood and on my older pinto engine that at the back of the garage tomorrow at some point and let you know

[Longboarder]

I can confirm that 2L heads have 42 inlets and 36 exhausts for definite.

You might have another look at the gasket face round number 4 plug space for stamped letters like the one below.

 

Nigel

 

Another give away for an injected head which must therefore be 2L and have hardened valves is the cam shaped inlet ports.

[Guest TerryBarry]

According to the Haynes Cortina manual #343

Valve head diameters are :

 

1.6 litre Inlet 42 mm Exhaust 34 mm

 

2.0 litre Inlet 42 mm Exhaust 36 mm

[Guest john]

Thanks Chris, I 've been allover the Dave Andrews site looking. The link to pinto heads is not working at the mo, maybe its trying to tell me its time for a late beer !

 

[Guest john]

Terry and Nigel, that looks pretty conclusive that its a 2.0, albeit an old one.

( Couldn't find any marks like your pic Nigel, )

 

Curious that my haynes just states '' Valve spec as for 1.3 litre'' for all the sizes of SOHC engine, without giving any diameters there either !

 

Oh well,

 

 

Thanks for the replies chaps.

[Grim]

Early 1.6 Pinto

 

42.16 Inlet

34.39 Exhaust

 

Pinto 1.6 ('85 onwards)

 

42.16 Inlet

32.10 Exhaust

 

Pinto 1.8

 

42 Inlet

34.21 Exhaust

 

Pinto 2.0

 

42.10 inlet

36.19 Exhaust

[chris n]

I have found these at various points on the top.....

 

EB

 

20

 

74

 

0

 

70HM 6090-NA

Hi John

Had a look at my old Pinto and the codes you have given from your head match it

all but the last.

My head reads 32HM 60906A