dek1581 Posted December 21, 2015 Share Posted December 21, 2015 was looking at 1991 Mack CF 688FC. It has M code (for year 1991) in the vin number, even though I thought Mack ended production of this model in 1990 (correct me if wrong). is there a way to know what engine/tranny this rig has by the aforementioned model number? Quote Link to comment https://www.bigmacktrucks.com/topic/43196-mack-cf-vin-decoding/ Share on other sites More sharing options...
j hancock Posted December 21, 2015 Share Posted December 21, 2015 "88" is a 350 engine. 426 units produced. Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/43196-mack-cf-vin-decoding/#findComment-316739 Share on other sites More sharing options...
dek1581 Posted December 22, 2015 Author Share Posted December 22, 2015 did they still make 2 valves in 1990 or is it a 4 valve? Quote Link to comment https://www.bigmacktrucks.com/topic/43196-mack-cf-vin-decoding/#findComment-316833 Share on other sites More sharing options...
Superdog Posted December 22, 2015 Share Posted December 22, 2015 that should be a 4 valve Quote Link to comment https://www.bigmacktrucks.com/topic/43196-mack-cf-vin-decoding/#findComment-316838 Share on other sites More sharing options...
dek1581 Posted December 23, 2015 Author Share Posted December 23, 2015 was this e6 or em6 and was that the most horsepower you could get until e7 came out? Quote Link to comment https://www.bigmacktrucks.com/topic/43196-mack-cf-vin-decoding/#findComment-316921 Share on other sites More sharing options...
Superdog Posted December 23, 2015 Share Posted December 23, 2015 E6 and yes 1 Quote Link to comment https://www.bigmacktrucks.com/topic/43196-mack-cf-vin-decoding/#findComment-316929 Share on other sites More sharing options...
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