Ford 2.3L 
Piston, Rod, and Crankshaft specifications.
Rods:
74 94 all rods are the same. Length of 5.205. Forging # D4xx The only exception is some did not have the oil squirt hole drilled. No specifics as to what year or model they were in.
95 97 new longer rod. Length of 5.457. Looks like the earlier rod. Forging # F5xx
98 - 00 same length, 5.457 however thinner, lighter. #F8xx Most 95 97 warranty replacements were done in sets with this rod. Replacement factory 95 97 engines usually had this rod.
Pistons;
74 94 Non turbo pistons were cast flat top, small valve reliefs. Compression Height of approx 1.59
74 93 Turbo pistons were forged, with a dish top. Compression Height of approx 1.59. Some early turbo pistons were cast and flattop.
95 98 2.3L pistons were cast with valve reliefs. Compression Height of approx 1.330. 5.457 Rod.
98 00 2.5L pistons were cast with valve reliefs. Compression Height of approx 1.192.
Pistons for a 2.3, stroke of 3.126 and a 5.7 rod use a Compression Height of 1.09
Pistons for a 2.5, stroke of 3.4 and a 5.7 rod use a compression height of approx .952
All piston pins are .912 in diameter.
Crankshafts;
74 85 / 86 were the same 3.126 stroke-using cast in rear main oil slinger and a two-piece real seal.
86 88 / 89 same journal sizes with no oil slinger and used a one-piece seal.
89 98 2.3L crankshafts had a smaller main journal, same size rod journal with one-piece rear main seals.
98 00 2.5l crankshafts, longer stroke 3.4 same journal and rear main as the 89 98 2.3 crankshafts.
If you have anything to add please e-mail Tech@powerbyace.com
© Automotive Component Engineering 2009 / 12
09/10/2009