Catpuss
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| posted on 29/10/06 at 12:56 PM |
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Will a 1.8 Pinto head work on a 2.0?
Well looks like the zorst stud hole on my 2.0 head is fucked never to be used again so...
I have a 1.8 engine too, I know that the 2.0 cams can go on a 1.8 engine for more power, but can I drop a 1.8 cylinder head on to a 2.0 block? Are
they the same other than cams or are the valves e.t.c different?
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jollygreengiant
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| posted on 29/10/06 at 03:00 PM |
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Will fit. It will also knock the compression ratio up to about 9.5/10.5:1 from about 8.5/9.5:1.
Gas/air flow through the carb will increase & will possibly want rejetting for optimum performance.
Also your 2.0 cam will fit it a treat and I think the valves should be the same.
Enjoy.
Beware of the Goldfish in the tulip mines. The ONLY defence against them is smoking peanut butter sandwiches.
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Catpuss
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| posted on 29/10/06 at 06:13 PM |
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Cool.
Will I still retain the "valves don't hit the pistons"?
Looking at the Haynes manual it implies the 1.3 through to 2.0 have the same head (at least for valve sizes) so I presume it will be the same for the
clearance.
At least it also means I can salvage quite a bit from the 2.0 head too.
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flak monkey
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| posted on 29/10/06 at 06:27 PM |
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The combustion chamber in the head is smaller. You will have trouble with the valves hitting the pistons if the cam belt breaks if you are using
anything other than a std 2 litre head...
David
Sera
http://www.motosera.com
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jollygreengiant
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| posted on 30/10/06 at 05:27 AM |
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I dropped a 1.6 gt head on a 2.0, apart from very high compresion ( very reluctant to start) I had no problems. (1.6 gt has same valves & cam as
2.0, just smaller combustion chambers.)
Beware of the Goldfish in the tulip mines. The ONLY defence against them is smoking peanut butter sandwiches.
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snapper
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| posted on 31/10/06 at 03:39 PM |
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The combustion chambers are indeed smaller on the 1.6 and 1.8 heads, so are the valves and so are the throats behind the valves, the ports on the 1.6
head are proporsionaly bigger compared with the 2.0L but not as big. Putting the 2.0L cam in the 1.8 and 1.6 head is a very cheap power increase,
putting the 1.6 head on the 2.0L block requires a lot of modification to get it right, including unshrouding the larger inlet & exhaust valves
that you would have put in, this now increases the chamber volume thus reducing the CR to manageble level. It is no easy way to bigger bhp. The 1.8
head sits in the middle and makes little sense to put it on without a good deal of work. Putting on a standard 2.0L head would be easy and skim it 1
to 1.5mm while your at it or source the 2.0L injection head which has the inlet port tight turn blended much better and adds 5 to 10bhp on its own,
skim that a bit and possibly use a thiner gasket.
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