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					Originally Posted by AJP1987
					
				 Yeah sorry i didnt check my post i meant LB9 we think it might be an L98.  but it has the 3.45 option and it was definately a factory 5 speed. thats the only thing we know for sure, besides the fact that the heads are aluminum. and are 5.0 and 5.7 valve covers interchangeable? | 
	
 All 87+ centerbolt valve covers are interchangable, with the exception of LSx motors.
 - Justin