Editing Swirl port SBC heads

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==Overview==

Swirl port SBC heads are often overlooked for any king of performance use. This page will weigh the pros and cons of using them in a "street performance" application.

==History==

==Casting numbers and ID==
The 5.7L TBI truck engines used c/n 14102191 and 193 heads.

==Design limitations==
===TBI swirl-inducing vane===
[[File:Tbi swirl port vane.jpg|thumb|left|350px|TBI swirl port vane.]]
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===L30 5.0L Vortec head=== 
{|
|[[file:305_VORTEC_SWIRL_RAMP_CN_059.jpg|thumb|center|305 Vortec L30 casting number 12558059.]]
|[[File:305 VORTEC CHAMBER CN 059.jpg|thumb|center|305 Vortec L30 casting number 12558059 chamber]]
|[[File:L31 305 VORTEC HEAD CASTING ID.jpg|thumb|center|305 Vortec L30 casting ID.]]
|}

==Modifications and porting==
==Resources==
*[http://outintheshop.com/faq/casting/castings2.html SBC head casting number go-to site]
*[http://web.archive.org/web/20080518030656/http://www.mortec.com/ MorTec archived]

[[Category:Engine]]
[[Category:GM]]