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					Originally Posted by rocketman
					
				 you cant really compare a 15* ls1 to a 23* sbc,but ake a 15* ls1 to a 18* sbc and they are very close,most the aftermarket ls1 heads are 13* to unshroud the valve,sbc 18* and 15* heads flow just as well
 I am just say that the sbc isn't dead.
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My ported factory ls1 heads flow more then my out of the box Dart 18's did at about 1/4 the cost! I love LS1's!! They allow poor people to go fast!!