33 Coupe Engine 18        5/26/03

After talking to more than four cam manufactures, I decided to go with Iskenderian. This will be the second cam I have owned from them. The one I got was a special grind that only took 3 days to get after I ordered it. 
 

 

 

Now this is a solid roller made out of a solid piece of 8620 steel and then heat treated. I didn't want to go with a hydraulic roller because a solid cam can RPM better. Plus I'm use to a solid cam. The specs on the cam are: Lift - .645, duration @ .050 264 Intake and 272 Exhaust with a 110 degree lobe center. Now if you don't know what the "@ .050" is, the older way to call it out is 298 degrees on the intake and 306 exhaust. If you still don't know what all this means.....well......let's put it this way, it should have a rough idle. The lobe center is how the cam works at certain RPM's. Say I had a 106 degree lobe center, this would have a really cool sounding idle but would be very peaky. This means that the cam would work in a smaller RPM range. The larger the lobe center, the larger the RPM range. They make 104 all the way to 114 degree lobe center so it just depends on what your wanting to do with your car. 
 

 

 

RED ZONE Roller Lifters feature the new Marathon Roller Bearing -- the bearing that keeps on rolling longer! Marathon bearings utilize a larger diameter pin and a shock absorbing, thicker outer race for higher fracture toughness! The resulting increased cross sectional area helps prevent premature bearing failures even under the sustained RPM red line abuse of professional endurance racing. In drag racing, Marathon bearings withstand higher (up to 1/2 ton) spring loads, delivering over twice the number of runs between rebuilds! 
 

 

 

After looking at these new lifters, I had to have them. Why? Because of the way they oil. Now the way roller lifters get oil on the rollers is by way of the splashing effect from the crankshaft. The higher the RPM, the more splashing which means more oiling. This is the big reason that you wouldn't want a solid roller on the street but Iskenderian came up with a way of oiling the rollers and cam lobes. Notice the oil hole next to the dark ring. This oil hole goes to the top to oil the rocker arms but doesn't stop there. Notice the small hole next to the pin that goes through the roller? This gets some much needed oiling to some critical places that others don't.
 

 

 

I got this picture from Isky's website to show one other place they oil. Notice the two small holes where the roller would sit. This has got to be one of the best features of this lifter because this will oil the all critical cam lobes. With out this kind of lifter, I would be chancing things. 
 

 

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