Big block Chevy heads
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| + | ==Chambers== | ||
| + | BBC heads have a few different chambers. But usually what you'll hear is "open" or "closed" chambers. In the image below, the closed chamber heads are on top, open chamber heads below. | ||
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| + | There are also "semi-closed" chamber heads like the c/n 215 heads. They are shaped more like an open chamber head, but with less volume. These heads are a decent choice for a production head especially on a smaller displacement engine (up to 454 cid). | ||
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| + | [[File:Closed vs open chamber bbc.jpg]] | ||
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==BBC L29 Vortec heads== | ==BBC L29 Vortec heads== | ||
[[File:ChevyBigBlockL-29vortec chamb.jpg]] | [[File:ChevyBigBlockL-29vortec chamb.jpg]] | ||
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Use anti seize compound on all threaded aluminum bolt or sender holes, especially the spark plug threads. Only remove fasteners or senders when the head is cold. | Use anti seize compound on all threaded aluminum bolt or sender holes, especially the spark plug threads. Only remove fasteners or senders when the head is cold. | ||
| + | ==Resources== | ||
| + | ===BBC casting numbers=== | ||
| + | *[http://www.nastyz28.com/bbcmenu.php Big Block Chevy Engine Parts Identification] from nastyz28.com | ||
| + | **[http://outintheshop.com/faq/casting/castings2.html Chevy BB casting number "go-to" site] from outintheshop.com | ||
[[Category:GM]] | [[Category:GM]] | ||
[[Category:Engine]] | [[Category:Engine]] | ||
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