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Old 10-05-2008, 07:50 PM
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self aligning rockers

I am putting together a marine sbc. I have added an XM256H and vortec bowtie small port heads. I was going to install the pushrods and rockers and discovered that the heads have a large Y for the pushrods to go through. I was going to use the stock rockers, but it occurred to me that without guide plates or self aligning rockers I would be in for a world of hurt at start up. Do I need guide plates and self aligning rockers or can I just use self aligning rockers such as the GM stamped steel versions?

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Old 10-05-2008, 08:10 PM
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Either use guide plates or self aligning rockers...not both.

If the heads do not have guide plates or a slot to guide the pushrod...you need the late style self aligning rockers.
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Old 10-05-2008, 08:22 PM
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why couldn't you use 3/8 pushrods?
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Old 10-05-2008, 08:58 PM
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Thanks again. Self aligning it is.
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Old 10-06-2008, 01:20 AM
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You might be wantin' to rescue some from a boneyard motor once you find out what Chevrolet gets for 'em.
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Old 10-06-2008, 08:24 AM
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I've seen them on Summit's website for about $50.
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Old 10-06-2008, 09:15 AM
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I got the GM parts from jegs for $55.
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