Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. | 
	
		
			
  | 
	|||||||
| Register | Album Gallery | Thread Gallery | FAQ | Community | Calendar | Become a Paid Member | Today's Posts | Search | 
 
 | 
	
	
| 
		 | 
	Thread Tools | Display Modes | 
| 
		 
			 
			#1  
			
			
			
			
			
		 
		
	 | 
||||
		
		
  | 
||||
| 
		
	
		
		
			
			 
			
			No affiliation to the seller, but WOW, what a great car. 
		
		
		
			https://detroit.craigslist.org/okl/c...704466769.html  | 
| 
		 
			 
			#2  
			
			
			
			
			
		 
		
	 | 
||||
		
		
  | 
||||
| 
		
	
		
		
			
			 
			
			Original 3.31 gear?  I don't think so with an L78
		 
		
		
		
		
		
		
			
				__________________ 
		
		
		
		
		
	
	Day 2 is Life.  | 
| 
		 
			 
			#3  
			
			
			
			
			
		 
		
	 | 
||||
		
		
  | 
||||
| 
		
	
		
		
			
			 
			
			Standard gear on a L78 was a 3.73, 3.31 was optional.
		 
		
		
		
		
		
		
		
		
	
	 | 
| 
		 
			 
			#4  
			
			
			
			
			
		 
		
	 | 
||||
		
		
  | 
||||
| 
		
	
		
		
			
			 
			
			It may have been optional, but how likely with an M21?
		 
		
		
		
		
		
		
			
				__________________ 
		
		
		
		
		
	
	Day 2 is Life.  | 
| 
		 
			 
			#5  
			
			
			
			
			
		 
		
	 | 
|||
		
		
  | 
|||
| 
		
	
		
		
			
			 
			
			i wonder if he ment its a 331 gear in a KK housung??
		 
		
		
		
		
		
		
		
		
	
	 | 
| 
		 
			 
			#6  
			
			
			
			
			
		 
		
	 | 
||||
		
		
  | 
||||
| 
		
	
		
		
			
			 
			
			I thought that also, but I think he was referring to KK tach as a knee knocker tach.
		 
		
		
		
		
		
		
		
		
	
	 | 
| 
		 
			 
			#7  
			
			
			
			
			
		 
		
	 | 
||||
		
		
  | 
||||
| 
		
	
		
		
			
			 
			
			That's how I read it.
		 
		
		
		
		
		
		
		
		
	
	 | 
| 
		 
			 
			#8  
			
			
			
			
			
		 
		
	 | 
|||
		
		
  | 
|||
| 
		
	
		
		
			
			 
			
			The way I read the ad, I doubt that it's an original L78 car, just happens to have a 1970 vintage L78 in it now, so the 3.31 gear is probably original to the car.
		 
		
		
		
		
		
		
			
				__________________ 
		
		
		
		
		
	
	Bill Pritchard 73 Camaro RS Z28, L82, M20, C60  | 
| 
		 
			 
			#9  
			
			
			
			
			
		 
		
	 | 
|||
		
		
  | 
|||
| 
		
	
		
		
			
			 
			
			I thought the same. He doesn’t say that it was originally an L78, but says he has a dated block so makes it sound like it was. I really like the car... no matter what the original hp!   
		
		
		
		
		
		
		
		
	
	What’s a ‘66 Chevelle SS wearing original black paint and non-original drivetrain worth?  | 
| 
		 
			 
			#10  
			
			
			
			
			
		 
		
	 | 
|||
		
		
  | 
|||
| 
		
	
		
		
			
			 
			
			I have an original l78 block for 1966 Chevrolet. Dated May 1966. Standard bore. $1800.00
		 
		
		
		
		
		
		
		
		
	
	 | 
![]()  | 
	
	
		
		
  | 
	
		
  |