Whats the dif between 2l and 1.8l kombi heads and valves?
Is it fine to throw 2l heads on a 1.8l?
milt.
milt Learner Dubber
16 posts · joined Oct 2003 ·
Head difference
Andy Andy\'s Adventures
2,820 posts · joined Nov 2002 ·
Milt,
In short yes.
I haven't got the info at hand, but 1.8L heads have different (larger) exhaust valves AND a different shaped combustion chamber.
So if your fitting a 2L head to a 1.8L you will need to re-set compresion ratio and adjust the carb jetting or FI to suit.
AMC assured me they stocked the 1.8L heads also if you want to keep it stock.
Andy
:thumb
In short yes.
I haven't got the info at hand, but 1.8L heads have different (larger) exhaust valves AND a different shaped combustion chamber.
So if your fitting a 2L head to a 1.8L you will need to re-set compresion ratio and adjust the carb jetting or FI to suit.
AMC assured me they stocked the 1.8L heads also if you want to keep it stock.
Andy
:thumb
Bizarre Moderator The artist formerly known as blue74l
12,785 posts · joined Aug 2002 ·
Dont 2.0L heads have the square exhaust port as well??
Futue te ipsum!!!
kombikim disfunctionally capable
1,521 posts · joined Dec 2002 ·
only about 1979 (I think) on & Daisy (aircooled T3's) have the square ports
Please, I need drivers side window regulator (winder mechanism) for my '54
Andy Andy\'s Adventures
2,820 posts · joined Nov 2002 ·
That's right Kim, '79 and on for square ports.
milt Learner Dubber
16 posts · joined Oct 2003 ·
Perfomance wise and life span does it matter if you use 2l heads on a 1.8l??
kombikim disfunctionally capable
1,521 posts · joined Dec 2002 ·
not really,
the 1.8 has larger inlet valves but the 2L has a more efficient combustion chamber design, there is no diffrence in performance that you could notice, life span of either can be🙁🙁 subject to correct valve clearences being maintained & making sure they dont overheat
the 1.8 has larger inlet valves but the 2L has a more efficient combustion chamber design, there is no diffrence in performance that you could notice, life span of either can be🙁🙁 subject to correct valve clearences being maintained & making sure they dont overheat
Please, I need drivers side window regulator (winder mechanism) for my '54
Bizarre Moderator The artist formerly known as blue74l
12,785 posts · joined Aug 2002 ·
Depends
General consensus is 1800 heads are better cause of the bigger valves.
Depending on the head builder 2.0L heads are better to rebuild cause even one that has dropped a valve is good/better to turn into a big valve head - guessing you are cutting new seats into fres material
Exhaust ports - well my mates like the square ports.
General consensus is 1800 heads are better cause of the bigger valves.
Depending on the head builder 2.0L heads are better to rebuild cause even one that has dropped a valve is good/better to turn into a big valve head - guessing you are cutting new seats into fres material
Exhaust ports - well my mates like the square ports.
Futue te ipsum!!!