polylocks
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Engine '67 Mustang 289 V8 Loose Rocker Arm Polylock Nuts Wtf?
Trying to tune and road test my '67 Mustang 289 V8, but for some reason, the POLYLOCKS KEEP COMING LOOSE, and not always on the same cylinder or bank -- sometimes left, other times, right. I'm confident the valve adjustment procedure and pre-load and zero lash have been done correctly (performed...- cjstang6791
- Thread
- 289 compcams polylocks preload railtype rockers rockerarms valve adjustment valve lash zero lash
- Replies: 2
- Forum: Classic Mustang Specific Tech
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'67 Mustang 289 V8 Loose Rocker Arm Polylock Nuts Wtf?
Trying to tune and road test my '67 Mustang 289 V8, but for some reason, the POLYLOCKS KEEP COMING LOOSE, and not always on the same cylinder or bank -- sometimes left, other times, right. I'm confident the valve adjustment procedure and pre-load and zero lash have been done correctly (performed...- cjstang6791
- Thread
- 289 compcams polylocks rocker arms valve adjustment
- Replies: 2
- Forum: 1965 - 1973 Classic Mustangs -General/Talk-
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'67 Mustang 289 V8 Rocker Arm Poly Lock Nuts Keep Coming Loose. Wtf?
Long time reader, first-time poster and I'm seeking some advice on a rocker arm nut issue. I've been working on my '67 Mustang 289 +.030 V8 with a fairly aggressive "street/strip" cam (290/228, .504 lift), Comp Cams Roller Tip "Rail Type" rockers using poly lock nuts (some type from JEGS I...- cjstang6791
- Thread
- 289 compcams hydraulic cam polylocks rocker arms valve adjustment
- Replies: 3
- Forum: The Welcome Wagon