View Single Post
camgrinder camgrinder is offline
Registered User
camgrinder's Avatar
Join Date: Feb 2004
Location: California
Posts: 921
The GE40 has intake durations of 256 I/ 248E and the 20/21 had durations of 258 I / 246 E.
The GE40 numbers are given at .050" valve lift. These 20/21 numbers are given at some other valve lift spec which is unknown.

The 20/21 cam at .050" Valve lift is 238/226 degrees according to WebCams page.
John Dougherty
Dougherty Racing Cams
Old 12-26-2004, 02:01 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #27 (permalink)