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Old 09-05-2024, 06:05 PM
bav70ss bav70ss is offline
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Originally Posted by bav70ss View Post
We pulled the heads on my 67 Nova SS with a 327 and found coolant in the cylinders. Both headgaskets were toast on my new 700 mile motor. Any ideas as to why this would happen?
After an expensive rebuild of my detonated 327 my builder/machine shop figured out the timing mark on my larger harmonic balancer from a 350 didn't jive with my 327. At TDC the mark was out 14 degrees so he scribed a new correct mark on my balancer.
This wasn't the first motor I lost to a bad timing mark. The first build didn't have forged pistons so it was toast after 40 miles. The 2nd build lasted 700 miles...fingers crossed for the 3rd build!
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'70 Nova SS L34, M21, bench seat
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