348-409 Weights

This chart lists the approximate weights of the 348, 409 and 427 Z-11 blocks and their parts.


  348     409     427 (Z-11) Notes
Alternator N/A      
Alternator Pulley #3829387 N/A 1 lb 9.4 oz 1 lb 9.4 oz Hi-perf deep groove
Block (empty) 180 lbs      
Camshaft 10 lbs 10 lbs 10 lbs  
Carburetor (4 bbl AFB)   7 lbs    
Carburetor (4 bbl WCFB)     N/A  
Carburetor (4 bbl Rochester)     N/A  
Clutch Disc 7 lbs 7 lbs    
Connecting rod        
Crankshaft   67 lbs    
Cylinder head 55 lbs 53 lbs    
Distributor w/cap   7 lbs    
Fan blade (4 blade, non clutch)        
Fan blade (5 blade, clutch type)   3 lb 9.3 oz 3 lb 9.3 oz  
Fan clutch        
Fuel pump        
Flywheel 26 lbs 26 lbs    
Generator 23 lbs 23 lbs N/A  
Harmonic balancer (small)     N/A  
Harmonic balancer (large)   9 lbs    
Intake manifold (1 X 4 aluminum)     N/A  
Intake manifold (2 X 4 aluminum)   20 lbs    
Intake manifold (3 X 2 iron)   N/A N/A  
Intake manifold (1 X 4 aluminum)     N/A  
Lifters (16) 3 lbs 3 lbs 3 lbs  
Pressure Plate 22 lbs 22 lbs    
Oil pan 9 lbs 9 lbs    
Oil pump 4 lbs 4 lbs    
Pistons w/rings   16 lbs    
Starter 21 lbs 21 lbs    
Timing cover        
Valve cover, painted, original (each) 2 lb 2.9 oz     heavily painted w/brackets
Valve cover, chrome, original (each)        
Valve cover, reproduction (each)   2 lb 6.4 oz   no brackets
Valve springs (16) 4 lbs 4 lbs 4 lbs  
Water Pump (passenger car) 13 lb 9.4 oz 13 lb 9.4 oz    
Water Pump (truck)        


Information on this page was recieved from visitors of this site or printed sources and are believed to be correct. Most of the weights are rounded off to the nearest pound and should be used as a guide.

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