401 cam specs

[Judd]

Anybody know the lift and duration on a factory 401 cam?

[39 Century]

Hey Judd - Here is an excerpt from an article in Car Craft maybe this will help:

You might be surprised to learn that ’59-’61 401s were fitted with one of the most radical factory cam grinds of their day. It featured 299/290 degrees of duration and 0.441/0.439 inches of lift at 0.050 on the intake/exhaust, ground on a 109-degree centerline. This grind helped air flow through the restrictive head design and small 1.875/1.5 intake/exhaust valves, but left the stodgier Buick owners asking their dealers why their luxury liners ran so rough. The LSA was toned down to 114 degrees for ’62, but the “rump-rump Buick idle” (as quoted from Hot Rod’s ’65 GS road test) had already become famous—or, depending upon who you ask, infamous.

You can read the full article if you, CLICK HERE