Thread: Horsepower for 69Z 302 w/#140 cam
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Old 10-26-2015, 06:58 PM
Lynn Lynn is offline
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Default Re: Horsepower for 69Z 302 w/#140 cam
The 178 has a little less duration. I think the lash is 22 24 so it is a bit quieter than the 30 30. I have a 178 in my 69 L46 motor that is in my car now, and most guys have to ask if it is solid lifter.

I think the 140 recommended lash is 24 24, but can check this evening and say for certain.

I have the specs for the 178 (according to GM) in the Chevy Power book and can post them tonight. Someone probably has them handy.
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