Upgrade Cam
Team Owner
Joined: Mar 2003
Posts: 26,118
Likes: 1,874
From: Greenville, Indiana
Originally Posted by 71vert
If you wanted to upgrade a stock 66 427/390 with a better cam than original what would you put in? I love the sound of a solid lifter, any suggestions?
Jerry
Jerry
I don't know what you consider as "better" but why not try the 427/425 cam? It will work perfectly with your engine.
You may have to change valve springs, Not sure about that but I know several people that made a direct replacement like this in '65/'68.
Instructor
Joined: May 2003
Posts: 125
Likes: 0
From: Lexington KY
Originally Posted by MikeM
I don't know what you consider as "better" but why not try the 427/425 cam? It will work perfectly with your engine.
You may have to change valve springs, Not sure about that but I know several people that made a direct replacement like this in '65/'68.
You may have to change valve springs, Not sure about that but I know several people that made a direct replacement like this in '65/'68.
Intermediate
Joined: Mar 2005
Posts: 37
Likes: 0
I've been using Crane #133802 in all the 390hp or 400hp 427's . The sound is very close to factory, maybe just a little more bump at idle. If it's out of stock, I'll use Crane #134242. This cam you will notice or at idle than the #133802. Neither of these cams are real choppy at idle. They will sound a step or two above stock. I had a '67 400hp that I used the #133802 in, and you mashed the throttle 1st gear, 3500rpms and the tire(radials) would bust loose. It was a fun car to drive. JUST MY OPPINION!!!!
#133802 222/234 @ .050 .529/.525 lift
#134242 226/236 @ .050 .534/.553 lift
#133802 222/234 @ .050 .529/.525 lift
#134242 226/236 @ .050 .534/.553 lift
