You sure that had a 391 because for the L 8000 series they never listed a 391. They started with a 401 and went up to a 534 in gas engines. We ran 371 V4 in the L800s and they had a short life span(100,000 miles if lucky). All our L800's were latter repowered with Chevy 427s.
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Today's Featured Article - Tractor Profile: Allis-Chalmers WD45 (Gas Version) - by Staff. Beginning production in 1953, the WD45 had the same general look as the WD tractor which was produced earlier - but was much more powerful. This was due to the new 4-cylinder "Power Crater" gasoline engine with a 4 x 4-1/2 inch bore and stroke. Some people feel this was one of the most significant tractors offered by Allis-Chalmers in those days. Nothing in its weight or power class could match its performance. In 1954 they began offering the WD45 with the new "Snap-Coupler&quo
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