All the comp grind mag efi cams are now rated with a 1.6 rocker...
Anything in the .550 lift area or more and you will have to cut the heads
or risk bottoming out the retainers.
Greg Conner
1996 RC
3.9 hybrid
>From: "Bernd D. Ratsch" <fasstdak@hotmail.com>
>Reply-To: dakota-truck@dakota-truck.net
>To: <dakota-truck@dakota-truck.net>
>Subject: DML: RE: Re: RE: Re: 1.6 vs. 1.7 rr's
>Date: Sun, 14 Nov 2004 07:09:00 -0600
>
>
>Nonononono....
>
>Most cams are rated for 1.5 (with some rated at 1.6)...but also depends on
>the advertised lift (ex: .512" with 1.6:1 or .512" with 1.5:1). More than
>likely, your cam is at the .512" lift with 1.6:1 rockers.
>
>- Bernd
>
>-----Original Message-----
>From: owner-dakota-truck@bent.twistedbits.net
>[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Mike Sykes
>Sent: Saturday, November 13, 2004 7:05 PM
>To: dakota-truck@dakota-truck.net
>Subject: DML: Re: RE: Re: 1.6 vs. 1.7 rr's
>
>
> >>Here's the formula:
>(Cam Lift/Rated Rocker Ratio)* New Rocker Ratio In other words: (.512 /
>1.6) * 1.7 = .544<<
>
>aiight... so (.512 / 1.5) x 1.7 = .580 lift That's a ton of lift....
>
>Newport News VA
>2000 FR R/T CC
>
>"...someone set up us the bomb...."
>
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