rodj

Hyd
1800-5800
60121
219int @50
227exh@ 50
.515lift int @1.5/1
.530exh lift
112° LSA

All OEM roller cams are the same.
Only difference is the drive pin length to suit either reg SBC or each of the two Optispark styles
That is why Comp Cams list the same grind as #8-XXX for reg and 7-XXX for LTX engines

In any case, if you get a cam intended for a LTX, you just cut the longer pin down to reg SBC length

Marv02

Thanks for the part Number

I been looking for anouther cam nothing real Lopey but more than what I put in my new motor I dont like This could be the cam I been looking for.

So far this ZZ4 cam is in my engine working RPM range I listen it on U Tube has the Not stock nastyer sound I wanted when I installed the cam I have now.

I read Comp Cams and other make the same type of Cam as in the ZZ4which one should I order for a Non Roller type Block I want to make the Motor a roller motor.

Agffter what I have read I want a Roller cam.

Now will I have to get my chip redone for this mod ???.

cv67

Youll definitely hear the 60121 for sure if thats what you choose to do.

rodj

You need a "Retro Fit" cam

http://www.summitracing.com/search/B...p/?keyword=CAM

Only thing is the retro fit roller lifters to suit are $$$

Marv02

Ya Money I tried of spending Money on the car But I want to get where I want it before I go start anouther Project.
( Dont tell my wife LOL)

As for the Retro Fit.

Voodoo makes a Retor Fit cam and Liffter for it Can PN 60111 Liffters
72330LUN

I might redegree the cam so it comes in sonner that put the RPM range from 1600 to 5600 straight up it will be 1800 to 5800 thats a little much for TPI.

When I clayed the Valve to piston with the cam thats in it now I had .200 more clearance to play with and still would have .100 to go this is straight up timming.

I at .447 now I be adding .083 more lift using 1.5 RRA. this should work with out any issues.

I need to look in to what are going to be the best Roller Liffters and Next what size push rods I going to need I order the stuff Next month I getting all my ducks I a row.

I have to get a hold the guy who burned My chip and see If I need to send it back for a Reburn or get a New one made.

But They make anouther cam with less lift PN 50143 RPM range 1800 to 6000 Duration 287in/298ex, Ex Dur 298 In287 219/217@50 In Lift.471 ex.480 I woundering if this cam will have the same idel as the other cam but with this cam I will not have to change out valve springs.