Jpri Posted January 21, 2021 Share Posted January 21, 2021 This is my engine number Etazb 673a, my question is, is this considered a e6 motor? I just bought this dump truck and need to know what it is so I can order parts for it. When I look up Mack engines there called e6 or e7 ect.. but I don’t see anything that links my number to any of these motors. Also I know what most of the letters mean but what does the b stand for? Thanks for any help and if anyone knows a good spot to buy parts that would be great too. Quote Link to comment https://www.bigmacktrucks.com/topic/65614-engine-identification-help/ Share on other sites More sharing options...
Joey Mack Posted January 22, 2021 Share Posted January 22, 2021 The E-7 was born in 1990... You have an E-6... what year? Quote Link to comment https://www.bigmacktrucks.com/topic/65614-engine-identification-help/#findComment-467389 Share on other sites More sharing options...
Jpri Posted January 22, 2021 Author Share Posted January 22, 2021 It’s a 1979 Quote Link to comment https://www.bigmacktrucks.com/topic/65614-engine-identification-help/#findComment-467393 Share on other sites More sharing options...
Jpri Posted January 22, 2021 Author Share Posted January 22, 2021 So are all motors before the e7 a e6 even though the change of hp? Mine is a 315hp if it matters. Quote Link to comment https://www.bigmacktrucks.com/topic/65614-engine-identification-help/#findComment-467394 Share on other sites More sharing options...
Joey Mack Posted January 22, 2021 Share Posted January 22, 2021 basically ,,, yes.... But I have limited knowledge on different E-6's... I'm currently building an E-6 2valve. 1960'ish... So I am learning as well... Someone here will hook you up better, however, you have a great engine, they just run and run and run... jojo 1 Quote Link to comment https://www.bigmacktrucks.com/topic/65614-engine-identification-help/#findComment-467395 Share on other sites More sharing options...
Joey Mack Posted January 22, 2021 Share Posted January 22, 2021 E-6 is 672 Cubic inches, The E-7 is 728 Cubic inches... Quote Link to comment https://www.bigmacktrucks.com/topic/65614-engine-identification-help/#findComment-467396 Share on other sites More sharing options...
Farmnaked Posted January 28, 2021 Share Posted January 28, 2021 I went through the same thing a few months ago. I have a 1979 R model dump truck. It has an ETZ673c in it. Not much info out there about this engine. I know this doesn’t really help you any but thought I would share it. Quote Link to comment https://www.bigmacktrucks.com/topic/65614-engine-identification-help/#findComment-467833 Share on other sites More sharing options...
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