KN420 Camshaft for 1936-'47 OHV Big Twins
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KN420 Camshaft for 1936-'47 OHV Big Twins

Item #: 106-2409
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Product is currently on backorder. You may still order this product. The product will ship within 7 days.


The S&S KN420 Camshaft is a high-lift Camshaft for modified knuckle engines. Features .420 inch valve lift and increased duration for larger engines up to 93 inch and compression ratio of up to 8.5:1. Special high-lift valve springs are required. Designed to be used with solid lifters. Fits 1936-1947 OHV big twin engines in Harley-Davidson® motorcycles and Flathead Power KN-Series engines.

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