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Camshaft Basics Lobe Centerline Test

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Camshaft Basics Lobe Centerline Test
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302/347 Small-Block Ford LCA Cam Test
When used in the 302, the 276/280 roller hydraulic cam on a 110 LCA proved optimal, as even a 1 degree change either way produced worse results. Using a SCAT stroker kit, this engine was stretched to 347 inches and re-tested with the original 110 LCA cam. The stroker kit really helped both power and torque. When the 110 LCA was replaced with a more appropriate 108 LCA cam, the output made a further jump to the tune of some 20 lb-ft and 20 hp. The 108 cam in the 347 gave as much in terms of idle and vacuum as did the 110 LCA in the 302. Dozens of tests such as this show conclusively that the overlap and LCA--not the duration--are the first steps toward generating a cam spec. View Related Article
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