small block sidewinder heads?

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small block sidewinder heads? #2288274 04/15/17 03:41 PM 04/15/17 03:41 PM
Joined: Jan 2003 Posts: 1,365 elmira ny hp340nos OP pro stock
hp340nos OP pro stock Joined: Jan 2003 Posts: 1,365 elmira ny	any buddy have any experience on the small block sidewinder head?looking to replace my cast x heads with a pair down the road.motor is a 340 stroker.heads now flow 270@.600in and 168@600ex.looking to go with full porting what will these sidewinders flow?thanksmike

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