Sweptline Showcase
A lot, but basically the series 1 was the standard or base engine and the Series 3 was the workhorse. It had higher quality metalurgy, heat treated exhaust valve and most importantly, it was detuned to last a long time, with smaller valves, lower compression, etc.Quote
mastrclndr
So I see a chart depicting the 318 series broken down thus:
318-1. . .Standard Engine. . . . . .used on D100 thru 300 series
318-2. . .Semi-Premium Engine. .used on D400 thru 600 series
318-3. . .Full Premium Engine. . .used on D400 thru 700 series
What's the difference between the 3 engines?
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