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flatjack9 · 01-21-2018, 11:54 AM

I checked a stock spring at recommended installed height and compressed .030 (cam lift) witht the following results: 39lb at 1.89" and 80lb at 1.59". Then 60lb at 1.675 and 110 lb at 1.375. (no coil bind). More pressure than needed for a stock cam.

01-21-2018, 11:54 AM	#201
flatjack9 Senior Member Join Date: May 2010 Location: Oshkosh, Wi Posts: 4,527	Re: Rebuilt Flathead Problems. I checked a stock spring at recommended installed height and compressed .030 (cam lift) witht the following results: 39lb at 1.89" and 80lb at 1.59". Then 60lb at 1.675 and 110 lb at 1.375. (no coil bind). More pressure than needed for a stock cam.