Splayed main caps on a factory 4 bolt SBC block? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 11-24-2005, 01:43 PM
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Splayed main caps on a factory 4 bolt SBC block?

Can you take a 4 bolt main 350 block and put splayed caps on it, or will it be weak, where the factory outer holes are? I have a nice 350 4 bolt block, that needs the center caps and didn't know if I could convert it over or not.....any thoughts? Thanks for the help!!!

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Old 11-24-2005, 05:25 PM
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You can put splayed caps on, but you also can buy stock-style main caps in billet steel. These are plenty strong. Oliver, Callies makes these.

Chris Laarman
Ottawa Engine and Performance
www.ottawaengine.com
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Old 11-24-2005, 07:48 PM
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I believe in order to use splayed caps on a factory block, you must start with a 2 bolt main block and have it machined for the splayed caps. If you have a 4 bolt block, you should use the straight bolt caps. You will need to have it align bored. Hope this helps.

Jeff
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