Nicks Garage 383 build

Killer6 said

That's awesome, I calculated from the event timing & lift split, the duration/overlap,.... & came up with 256°/260°......but My books for a '66 showed .390"/.395" lift????? 2bbl. 383.
I wanted to put up an iteration of the 383 I put in the Popo Dippy adding a RR intake & 750 3310 Holley into DesktopDyno..

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Early sixties, there were basically two big block cams (not counting the rammed 413s): The two barrel cam was 252 duration, .390/.395 lift, and the four barrel was 268 duration, .430 lift. The latter was used in the Chrysler 300 non-ram 413s (single four barrel or dual fours inline), the 383 four barrel and the 426 wedge four barrel.

Then the above two cams were dropped, and (through 1970) two and four barrel 383 and standard 440 all used a 256/260 duration, .425/.437 lift cam. This cam was also used in A body 383s in 67 and 68. The 440 hi-po, Road Runner and Super Bee 383s had a 268/274 duration, .450/.465 lift cam. This cam was also used in 69 A body 383s and 440s.

Some late sixties ads showed the hi-po motors having a (if I remember correctly) a 284/292 cam, but I am 100% sure this was the same as the 268/284 cam measured more like a GM cam.