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**blueovalbaboon** · 06-08-2004, 06:47 PM

In terms of the physical engine itself, all duratecs use the same heads, whether they're the 1.8. the 2.0, or the 2.3.

The blocks themselves are physically identical except that the deck height of the 2.3 block is 11mm (less than 1/2 inch) taller than the 1.8/2.0 block in order to accomodate the extra stroke length. This can be likened to the difference between a 351 Windsor and a 302, both of which also have worn the same heads from the factoy.

All models have the same powdered metal conecting rods with only the crankshaft (and consequently stroke length) differing between them. The American 2.0 has a 10.0:1 compression while the slightly dished pistons of the 2.3 yield 9.7:1 compression.

Because the only physical difference between these engines is the less than .5 inch discrepancy in deck height, it is anticipated that nearly any aftermarket part for one engine will fit the other, this goes for everything from cams to intake and exhaust.

06-08-2004, 06:47 PM	#6
blueovalbaboon Moderator Join Date: Jan 2003 Location: Lubbock, TX (my once and future--but not right now--home Posts: 16,116	Re: Project Duratec FAQ In terms of the physical engine itself, all duratecs use the same heads, whether they're the 1.8. the 2.0, or the 2.3. The blocks themselves are physically identical except that the deck height of the 2.3 block is 11mm (less than 1/2 inch) taller than the 1.8/2.0 block in order to accomodate the extra stroke length. This can be likened to the difference between a 351 Windsor and a 302, both of which also have worn the same heads from the factoy. All models have the same powdered metal conecting rods with only the crankshaft (and consequently stroke length) differing between them. The American 2.0 has a 10.0:1 compression while the slightly dished pistons of the 2.3 yield 9.7:1 compression. Because the only physical difference between these engines is the less than .5 inch discrepancy in deck height, it is anticipated that nearly any aftermarket part for one engine will fit the other, this goes for everything from cams to intake and exhaust.