Engine weights

[MaineShark]

Roughly, what does a small-block weigh? I hear all the comparison weights (ie, how much less it weighs than a big block), but not just the raw number.

Carb to pan, with iron heads?

With aluminum heads?

Joe

[66427-450]

Some of my old notes regarding midyears (from some GM literature I’m sure) say that a HP BB with alum intake and heads weighs only 75 lbs. more than a base SB. Those heads are huge, and the use of alum saves a lot.

If some Dude comments that BB are to/so heavy, remind them that a base SB with Air Conditioning weighs more than a HP BB

[JohnZ]

Car weight statistics (option affects vs. base '67 300hp 3-speed car) from Chevrolet Engneering:

L79 327/350hp - 8# lighter (aluminum intake)
L36 427/390 - 215# heavier (iron intake)
L68 427/400 - 151# heavier (aluminum intake)
L71 427/435 - 149# heavier (aluminum intake)
L89 Alum. Heads - subtract 73# from L71 penalty
M20 4-speed - 5# lighter
M35 Powerglide - 1# heavier
N40 Power Steering - 21# heavier
C60 A/C - 93# heavier
U69 Radio - 21# heavier
J50 Power Brakes - 12# heavier
C07 Hardtop - 49# heavier
C48 Less Heater - 20# lighter
A31 Power Windows - 5# heavier
J56 H.D. Brakes - 6# heavier

'67 Coupe Curb Weight (full fuel) - 3155# (1555 front, 1600 rear)
'67 Convt. Curb Weight (full fuel) - 3175# (1535 front, 1640 rear)

[66427-450]

Very good info John, thanks........ That confirms what I had believed