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twin11 T I have a Comp Cams Roller Cam in my Nova's 454 (Thumper Cam Kit CCA-K11-600-8). Rocker arms are Comp Ultra Pro Magnum. When motor was initially rebuilt it ran nice and quiet (for a roller cam based engine). Now it's noisy as hell but only on one side of the block. I've had two really good mechanics adjust the rockers in attempt to reduce the noise with no luck at all. The first mechanic even replaced the lifters/rocker arms but this did not help either. Still loud on the same side of the motor. Does any one have an idea what I should check next? #1 · Jan 8, 2019 I have a Comp Cams Roller Cam in my Nova's 454 (Thumper Cam Kit CCA-K11-600-8). Rocker arms are Comp Ultra Pro Magnum. When motor was initially rebuilt it ran nice and quiet (for a roller cam based engine). Now it's noisy as hell but only on one side of the block. I've had two really good mechanics adjust the rockers in attempt to reduce the noise with no luck at all. The first mechanic even replaced the lifters/rocker arms but this did not help either. Still loud on the same side of the motor. Does any one have an idea what I should check next? Sort by Oldest first Oldest first Newest first Most reactions #2 · Jan 9, 2019 Are you getting oil on the problem side of the engine? #3 · Jan 9, 2019 No problem getting oil on that side of the motor. It pumped at least a quart or more out while my mechanic was adjusting them today. Show more replies 0 Reply #6 · Jan 10, 2019 What makes you think it's the roller rockers? It's probably the lifters. #8 · Jan 10, 2019 As I stated earlier first mechanic put a new set of lifters and roller rockers in the engine. 0 Reply #7 · Jan 10, 2019 What valve covers are you using? I’ve seen a few cases where the bigger bodied roller rockers will touch the valve cover and make noise. Insert Quotes Post Reply

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