I'm sure this is common knowledge to some of you, but I've seen head weights asked about and lots of general 'oh pretty good' type answers so I thought I'd post these. We like real info!
'452' assembled................49.9 lbs
'452' bare.........................45.4 lbs
Edelbrock RPM assembled..29.1 lbs
Edelbrock RPM bare...........23.7 lbs
TF 240 assembled.............32.0 lbs
TF 240 bare......................??? I dunno, didn't strip one down just to weigh it
(If I remember to do it later when I set up the springs, I'll update)
These are all Big-Block heads.
Assembled heads are castings with valves/springs/hardware only, no rocker gear.
The Edelbrocks are milled .020" with no porting or other machining.
The 452s have stock valves/springs/hardware with the exception of P/C-type seals. The only machining is a .005" deck skim and the minor cutting needed for the seals.
'452' assembled................49.9 lbs
'452' bare.........................45.4 lbs
Edelbrock RPM assembled..29.1 lbs
Edelbrock RPM bare...........23.7 lbs
TF 240 assembled.............32.0 lbs
TF 240 bare......................??? I dunno, didn't strip one down just to weigh it
(If I remember to do it later when I set up the springs, I'll update)
These are all Big-Block heads.
Assembled heads are castings with valves/springs/hardware only, no rocker gear.
The Edelbrocks are milled .020" with no porting or other machining.
The 452s have stock valves/springs/hardware with the exception of P/C-type seals. The only machining is a .005" deck skim and the minor cutting needed for the seals.