Technical 1242 Engine Head on 1108 Block ?

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Technical 1242 Engine Head on 1108 Block ?

Pras83

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Whilst searching the forum I came across this.

What is the point ? Does it increase HP ?

Thanks
 
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arc

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it'll reduce it if anything, the early (pre may 1997) 1242cc punto heads have smaller inlet valves than the 1108cc Cinq/Sei heads
 

LanciaMad

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Pras83 said:
Whilst searching the forum I came across this.

What is the point of that? Does this increase HP ?

Thanks

I heard its the same head...
 
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Pras83

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Oh ok then there's no point really.

I was just thinking of buying a skimmed head on eBay as they are only £40 inc postage. Rather then get mine skimmed. (if my HG is blown)

They are selling both the 1.2 & 1.1 heads for the same price.

So if it was any improvement I'd go with the 1.2 head.
 

arc

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do they say which engines they have come off, cos like i say the puntos before 1997 had smaller inlet valves.

no point buying one really though.. just get urs skimmed, its cheaper
 
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Pras83

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Arg.

Can't find the auction anymore...

I think i saved it in my bookmarks at home.
 

arc

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well yeah, any FIRE head will fit any FIRE engine -but like i said, theyre not all the same!
 

arc

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1108 cinq engine (176.B2): Inlet 31.5mm
1108 punto engine (176.A6): Inlet 30.5mm
1242 punto engine (176.A7): Inet 30.5mm
1242 punto engine (176.B4): Inlet 31.5mm

all use 27.5mm exhaust valves.

hth
 

arc

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i dunno about the 1108, or the mk2 punto MPI's but the 1242 MPI (punto75 engine), 176.A8 has 31.5mm inlet valves.

but [email protected] has an uno.. which will be SPI, so i assumed he'd only want the SPI's valve sizes!
 

[email protected]

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Well I'm getting a custom fuel injection manifold made for MPI, and I want to fit the biggest valves possible as it's going to be a N/A conversion.
Do you know if I can get bigger valves to fit from another vehicle?
 
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