Crower cam question (Pontiac 389)

I currently have a Crower 60242 hydraulic cam. I've had it in the car since about '91. I am doing a little freshening up of the engine('66 Pontiac 389 block) and I am contemplating going to a roller cam.

Does anyone know of a Crower roller cam that would have close to the same characteristics as my 60242?

60242 Specs:
Duration: 280/286
Lift: .456"/.468"
RPM Range: 1700 - 6200

 

Call Crower, there customer service and tech support kicks ass.

 

Thank you. Yeah, I'll probably do that. I tried their online deal, they wanted me to fill out their entire camshaft recommendation chart, but I already know what I have works for my gears, compression, etc... I was wanting just a quick suggestion from them, I guess it's always easier just to tell them what I am looking for on the phone.

Plus I figured somebody on here might have first hand experience with running one of theirs.

 

Why roller ? Those hft cams can make quite a bit of power. I had the bigger 60243 in my 389 bored out to a 400 with 670 heads, but that's about 10:1 compression. The one part about these crower cams is they have to be checked with a degree wheel, they are known to be of, can't just install them dot to dot and leave it be. I had to advance mine with an offset key in the cam gear.

 

Crower doesn't list a Hydraulic roller, might grind a chevy profile for you on a Pontiac blank, call and ask.



The XR276R would make sense;

 

Did a model of a 389, stock 6x heads, 9.5, 180 intake 750 cfm, small tube headers with that cam. I compared it to the Comp 276 and the Crane 621.

Here it is compared to the Crane installed straight up. The Comp is ground for a 106 lobe center, in like that it is closer in torque to the crower but down about 10 HP to the Crane at 5,000. In at 110 you can't tell the difference. Same story if you advance the Crane to 108 ICL,closer in Torque 10 less at 5000,

 

Thanks guys for all the responses.

55 chieftain,
Yes you are correct it does make great power with around 10.5:1 compression and I did set it up with a degree wheel. I am a machinist so i check everything within an inch (or should I say a .0001") of its life. More than likely I'll stick with the 60242.

hoop 98,
Thank you for the comparisons! What is the modeling software that you are running? I thought about picking something like that up, but just haven't had the time to look any further into it.

 

Dyno Sim 5



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