Gen 1 SBC Weights - Aluminum vs Iron

I found this online somewhere, id give the credit but i dont remember where i found it, anyway:



Gen-1 SBC Weights- Pounds(lbs)


Block (Iron 4-bolt main)- 165
Block (Aluminum 4-bolt main)- 95
Crankshaft- 52
Cylinder Head (Single Iron w/valves, springs, rockers, etc.)- 50
Cylinder Head (Single Aluminum w/valves, springs, rockers, etc.)- 25
Cylinder Head Bolts (All)- 3
Connecting Rods (Stock 5.7 inches w/caps, studs, nuts)- 12
Pistons Pins Rings (All)- 9
Camshaft- 8
Lifters (Solid All)- 4
Pushrods (all)- 3
Timing Set- 3
Oil Pump- 4
Distributor (Stock HEI w/cap, rotor, coil)- 6
Intake Manifold (Stock 4-Barrell Aluminum)- 18
Carburetor (Holley 4-Barrell) 12
Carburetor (Holley 2-Barrell)- 7
Fuel Pump (Stock Mechanical)- 2
Headers- 10
Flywheel (Iron 168 teeth)- 28
Harmonic Damper- 8
Water Pump (Iron Short)- 9
Water Pump (Aluminum Short)- 5
Valve Cover (1 Steel)- 2
Timing Cover (Steel)- 1
Oil Pan (Steel)- 7
Alternator (Stock Delco 1977)- 10
Starter (Stock)- 18
Starter (Tilton)- 9
Pulleys (Steel)- 6
Brackets (Steel)- 4


SBC Complete, Iron block, Aluminum Heads, 4-Barrell Holley,
Lightest Parts, No Flywheel- 425

Same as above with Aluminum Block- 355

And this list is of what ive weighed myself in lbs:

EQ vortec heads 64cc 55lbs
starter 19.4
iron water pump long 16
har bal 8
alt 12
quadrajet 10.5
smog heads 76cc on gm goodwrench 350 45.5
radiator brass copper 3 core 25
battery 78group 32.5
intake eddy old 2101 14.7
intake eddy vortec rpm 17.9
header flowtech full length 11.5
crank pulley steel 3 pulley4.4
old style stamped steel valve cover 1.7
bill alum valve cover 1.7
billet distributor 5.5
old iron exh man 16.5

Great post.  I found a link that I find pretty useful as well.  I do not know how accurate it is, but it has weights for many different engines, including Buick, Pontiac, and Oldsmobile.  

http://www.carnut.com/specs/engdim.html