Rocker Arms 1.6
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Junior Member
Joined: Feb 2004
Posts: 74
Likes: 0
From: Dobson ,NC
Car: 87 IROC - Z
Engine: 406 smblk
Transmission: 4 speed manual
Rocker Arms 1.6
I have a 406ci sm would I make more power with 1.6 rockers on all valves or staggered ,also does this change the duration THANKS 480'' lift cam
Supreme Member
Joined: Jul 2005
Posts: 1,423
Likes: 1
From: Miramichi, NB
Car: 86 Monte Carlo
Engine: Blown 489
Transmission: TH400
Axle/Gears: 9" 370s
i was told they make a .30 extra lift with 1.6 roller rockers, maybe its from a certain brand, like crane gold or comp cam magnum's
TGO Supporter
Joined: Aug 1999
Posts: 14,811
Likes: 1
From: Jackson County
it'll increase lift .032 and in a round about way increase duration, good way to start a lot of arguments is asking that question, but you already knbow that i;'m sure from doing a search before you asked right? all in all you won't notice any real power gains with BS dyno
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