[IL] COMP Cams Ultra Pro Magnum Rocker Arms 1618-16

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Old Aug 12, 2025 | 07:22 PM
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From: Northwest Chicago Suburbs
Car: 1991 Camaro Z-28 (Durango R/T)
Engine: 383 L98 W/ HSR
Transmission: 700R4 Tuned Shift 2600 Stall
Axle/Gears: 3.73 10Bolt Posi W/ Al Cover, Disks
COMP Cams Ultra Pro Magnum Rocker Arms 1618-16

Up for sale is a full set of 16 Ultra Pro Magnum Rockers. These are full roller rockers made from ultra strong chromoly, but designed to be lighter than aluminum. They feature the self aligning tabs for standard L98 engines. Includes all the locks. They are 1.6 ratio instead of the factory 1.5 ratio to get you extra lift without having to change your cam, this is 6.7% more lift. It definitely made a noticeable difference to power and exhaust tone when I changed them out from the stock rockers. They were on my engine for maybe the last 15k miles, but they literally look brand new. Clearly not much wear when everything is lubricated and rolling. I built a new engine with heads that required guide plates, so I bought the exact same ones again but with the standard non self aligning tips.

These are about $470 new, I am asking $350 OBO for this set, local pickup or buyer pays actual shipping cost from 60047.




Last edited by raptere; Aug 12, 2025 at 08:58 PM.
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Old Nov 7, 2025 | 07:36 AM
  #2  
raptere's Avatar
Thread Starter
Senior Member
20 Year Member
Liked
Loved
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Joined: Oct 2002
Posts: 801
Likes: 91
From: Northwest Chicago Suburbs
Car: 1991 Camaro Z-28 (Durango R/T)
Engine: 383 L98 W/ HSR
Transmission: 700R4 Tuned Shift 2600 Stall
Axle/Gears: 3.73 10Bolt Posi W/ Al Cover, Disks
Re: COMP Cams Ultra Pro Magnum Rocker Arms 1618-16

These really show very little wear. I have always been very diligent about oil changes in this car.

This is also the quickest and easiest way to actually make MORE POWER, its just like increasing the lift of your camshaft without having to tear your engine half apart. This can be done by only removing the valve covers and swapping these out for the stockers. They significantly reduce friction and heat too!
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