962 cam question
Thread Starter
Racer
Joined: May 2008
Posts: 318
Likes: 0
From: Wheaton, Illinois
962 cam question
I am using the 962 cam for my 355 build. The 962 specs out at 222/222 @ 450/460. What would be my lift using Comp's 1.60 roller rockers to increase lift, can I still use my stock valve covers w/ them? Thanks
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
When you start getting into roller rockers the fit is tight. I have to use a thick valve cover gasket and I had to pinch in where the breathers are. They do fit but you might have to massage the covers and use a thick gasket. I am running CC rollers and have a lift of .550/.560 and they do clear.
Burning Brakes
Joined: Feb 2005
Posts: 894
Likes: 91
Just to keep the record straight the "962" cam is a 224*/224* x .450"/.460", not the 222*/.222* x .447"/.447".
It's on a 114 L/S and is normally installed at a 114 ICL. This is/was the L-82 cam! This cam by the way gives us 355+ HP @ 5800 RPM and 380+ Ft.Lbs. Torque @ 4100 RPM using a 9.75:1 C.R. on the 350" platform (not the stroker)! It happens to be an excellent SB cam for "moderate performance" with decent "manners"!
On the other hand, the 222*/222* mentioned above is from the 327/350 HP unit! It's on a 114 L/S but has a 110* ICL.
Thanks, Gary in N.Y.
P.S. All the "roller" components you are looking to use will fit. If the unit is done correctly, the "true" roller rockers will fit along with the stock Vette covers and the single gasket (most times), occasionally you need the "double-thicks"! Component brands play a part here, certain ones fit and certain ones don't? The photo here shows a '69 Vette, 100% OEM appearing but with the "full-roller" treatment, lifters AND the pictured "Blue-Racer" rockers. This is a 383" retro-hydraulic roller with the "186" heads and the "386" block! This is on the dyno tonight and will be tested shortly!!
Last edited by GOSFAST; Nov 14, 2008 at 07:35 PM. Reason: Add info
Le Mans Master
Joined: Mar 2004
Posts: 7,477
Likes: 1,495
From: Little Rock AR
.450"/1.5 = .300" lobe lift
.300" lobe lift *1.6 = .480" with your new rocker arm ratio
.460"/1.5 = .307" lobe lift
.307" Lobe lift *1.6 = .490" with your new rocker arm ratio.
That's all there is to it.
-Mark.
.300" lobe lift *1.6 = .480" with your new rocker arm ratio
.460"/1.5 = .307" lobe lift
.307" Lobe lift *1.6 = .490" with your new rocker arm ratio.
That's all there is to it.
-Mark.
