Pinto Head Identification

[1186497]

Hi, just got a new pinto engine, no engine number as it was donated to a college, but the marking by the number 4 plug is a definate I, not L.

 

I realise this is not a usual unleaded marking, but by any chance does it mean inserts???

 

Thanks

Simon

[chris n]

Unleaded I/D for Pinto next to number 4 spark

 

1.6-- M,MM,N or NN

1.8-- S or SS

2.0-- L,P,PP,R or RR

 

it would have one of these letter stamped in the head if it was unleaded with inserts

[Mat-Moo]

Has it got a cam cover? Any markings on that?

[Guest craig030774]

has it got 205 in big numbers near the alternator

[1186497]

Hi, yes it is the 205 block, not sure about cam cover markings as engine not at my house so cant look.

 

I am presuming needs leaded petrol, but still only needed once every four fill ups.

[Longboarder]

Have a look at the shape of the inlet ports. If they are round its no help but if they are cam lobe shape then its an injection head and is unleaded.

 

Nigel

[Guest SEgan]

Hi, just got a new pinto engine, no engine number as it was donated to a college, but the marking by the number 4 plug is a definate I, not L.

 

I realise this is not a usual unleaded marking, but by any chance does it mean inserts???

 

Thanks

Simon

 

Old thread resurrection

 

Is there a definitive answer to this question?

 

I have a spare head stamped as ‘I’ next to the number 4 plug.

 

Any ideas?

 

Thanks

 

Sean

[chris n]

Old thread resurrection

 

Is there a definitive answer to this question?

 

I have a spare head stamped as ‘I’ next to the number 4 plug.

 

Any ideas?

 

Thanks

 

Sean

 

'I' OR 'L' stamped next to number 4 spark plug hole= a leaded head most likely to be 1979 - 1982 in age

[Guest craig030774]

got my inlet manifold off and i have round ports on a 205 block but the casting mark (not a stamp) says 8b

 

what the hell have i got

 

was supposed to be an injection head

[Guest chris brown]

got my inlet manifold off and i have round ports on a 205 block but the casting mark (not a stamp) says 8b

 

what the hell have i got

 

was supposed to be an injection head

It's not an injection head with round ports as there isn’t room for the injectors. All injection heads have egg shaped ports. There were lots of 205 blocks with carb heads I believe all were for leaded fuel.

[Guest SEgan]

'I' OR 'L' stamped next to number 4 spark plug hole= a leaded head most likely to be 1979 - 1982 in age

 

Cheers

 

Sean

[Guest craig030774]

oh poo been running on unleaded for the last 3 years

but it has run ok

bit of old folklore about constant hammering of valves running on leaded actually hardens the seats

 

hope this is the case

[Guest erichetherington]

A lot depends on mileage and how hard you hammer it! If you're cruising round, not doing a high mileage and have "got" away with it for 3 years forget about it. Worst that can happen is the the exhaust valve seat recess into head and you have to find/buy another. But with specialists charging whatever they can think of for inserts probably still cheaper to scrap the odd head.