Quote:
	
	
		
			
				
					Originally Posted by  L78steve
					 
				 
				Ive got one slightly used not even rusty. I will have to check on the part number but Its off a 70 396 Nova. 
			
		 | 
	
	
 Big block heat risers are larger than small blocks, unless the small block has the 2 1/2 inch manifolds that were used on Corvettes and 62, 63, 64 300 horse full size cars.