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Old 07-19-2006, 02:44 PM
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351W Base 396

Hey Guys whats happenen? I have a push rod question. One of my buddys has a 396(351Windsor base) in a fox body stang. After he ordered parts and put the engine together it ran fine for a while then ******* hit the fan. Apparently when he bought the pushrods they were for a cleveland and it ran and sounded fine for a while then it started knocking and causing all sorts of havoc in the top end(bent rods, exploded lifters, exploded rockers, destroyed valves, alot of metal end the bottom end, and the pistons are a little banged up). My question is, is there alot of difference in the pushrods and secondly should it have even ran?

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Old 07-19-2006, 04:22 PM
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did any one check rocker arm geometry?
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Old 07-23-2006, 01:09 PM
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Quote:
Originally Posted by nitro_baller4692
did any one check rocker arm geometry?

Exactly.... it ran fine for a while. Did he measure the length of the pushrods needed by using a pushrod checker? I'll bet NO.

Sounds a lot like it was over revved, also. Could have been pumped up hydraulic lifters or a miriad of other problems.

Stiffer heavy duty pushrods are often overlooked. Pushrod flex could have been a problem also.

I am still amazed how many people spend thousands on all the biggie parts and then ignore the top end.

Don't cheap-out on the valve train. Nothing else works if the valve train fails. As you have learned.

You need to run 100% of the recommended parts ALL from the cam manufacturer.


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