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Discussion Starter · #1 ·
I wasn't planning on replacing the push rods, but now I'm wondering if I should. I have a new Lunati cam (60203) and lifters. None of the old push rods are bent, so is it ok to re-use them?
 

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Make sure that you check for correct length - that may answer your question.
You can also pick up some HP by going to a thicker wall push rod - .080 or thicker will buy you some free HP.
Also be aware that the pushrod wears pattern into you rocker arm so they should be considered a matched set
 

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I don't know what push rods you have.
I will tell you, IF your BBC has Chevy 5/16 pushrods...pretty common after 1972....move up to 3/8" units and guide plates
 

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Discussion Starter · #5 ·
The engine is a 1971 402, but came with 049 heads with date code of 72, so I'm not sure which size the pushrods are. The heads do have guide plates though.

I have them installed now, but didn't install the intake, so I can still easily make any changes needed
 

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The 5/16 jobs are barely adequate for daily use when they came out. Throw a cam and big springs at 'em and you're asking for trouble..... All your BBC would have guide plates.
Have fun with the toy Bill
 

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I would upgrade if you're running high spring pressures.
 
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