P1800/123GT Engine

Dylan144GT · Oct 1st, 2008, 14:21

Hi All

I've been told that the 123GT had the P1800 engine in it and thats part of what made it special and set it above the other Amazons. My train of thought begs the question... What were the differences from the other models that ran the same B18 and B20 engines. I know the B18B gained a large advance in power in its last form at 115hp but the P1800 was around long before that homologation which occoured around 66-67 and thats when the first GT's arrived.

This one has puzzled me for a while and its irritated me so badly now that I beg someone to please put an end to it!

Dylan

222s · Oct 1st, 2008, 15:50

AFAIK, the only internal differences between the various versions of the B18 were limited to the headgasket (to change compression ratio) and the camshaft.

I think that this also applies to the B20s, except that the fuel injected ones had bigger valves.

Oct 1st, 2008, 14:21	#1
Dylan144GT Member Last Online: May 21st, 2023 08:35 Join Date: Aug 2008 Location: Cape Town	P1800/123GT Engine Hi All I've been told that the 123GT had the P1800 engine in it and thats part of what made it special and set it above the other Amazons. My train of thought begs the question... What were the differences from the other models that ran the same B18 and B20 engines. I know the B18B gained a large advance in power in its last form at 115hp but the P1800 was around long before that homologation which occoured around 66-67 and thats when the first GT's arrived. This one has puzzled me for a while and its irritated me so badly now that I beg someone to please put an end to it! Dylan Last edited by Dylan144GT; Oct 1st, 2008 at 15:10.

Oct 1st, 2008, 15:50	#2
222s Amazoniste Last Online: Sep 19th, 2016 21:52 Join Date: Nov 2002 Location: Emsworth View Photos By: 222s	AFAIK, the only internal differences between the various versions of the B18 were limited to the headgasket (to change compression ratio) and the camshaft. I think that this also applies to the B20s, except that the fuel injected ones had bigger valves. __________________ Paul - 1967 Amazon 222S B20 o/d Estate & 1961 A-H Sprite Mk2 948cc WANTED - For '67 Amazon estate - offside rear quarter, preferably new old stock.

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