Reply to "racing camshaft recommendations?"

George PAdmin.

quote:

Originally posted by ilyes:

Would you run longer valves or stock length should be ok? If I were to run beehive spring for that cam, and need to achieve 1,900 of assembled height, would stock vavles be long enough?

The stock spring height is 1.82" If the springs you choose require a different mounting height (beehive springs) then that additional height must be achieved one of 3 ways.

(1) off-set valve spring retainer locks
(2) machining the valve spring seats
(3) longer valves

Installing longer valves raises the tip of the valve 0.100", so although they accommodate taller springs longer valves also impact rocker arm geometry. This approach is OK as long as the rocker arm geometry is corrected.

11/26/141:24 PM

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