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11-10-2012, 12:56 PM
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Registered User
Join Date: Aug 2010
Location: Olathe, KS
Posts: 61
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Difference between Light Duty and Heavy Duty 350?
I've never really ran across this before, what is the difference between a 350 Light Duty vs. Heavy Duty? I show an LS9 engine code, but when you go to look up parts they give you an LD or HD choice and there are differences such as the plugs.. (Example: Ext Tip or not.) I haven't found any way to tell which motor I have at this point besides just knowing it's a 350. Any insight on this?
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1982 C-20, 454, TH-400, PS, A/C, 71,000 miles 1978 C-20, 350, TH-400, PS, Non-A/C, 112,000 miles If it ain't broke, there is still probably room for improvement.  Speed costs money, how fast do you want to go? |
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