Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Vortec heads with high left capabilities
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Old 09-22-2005, 08:57 PM
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Blazin72 Blazin72 is offline
You got a leaky spark tube...
 
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Yeah, those LS1 heads are pretty good from the factory, the LS6 heads are even better. Theres just one problem...the LS1 heads do not interchange with the older small blocks. LS1s have four head bolts around each cylinder, Gen Is and IIs have five.
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