Wieght difference between small block and big block

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LXguy

LXguy

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hey

Anyone know the weight difference between an aluminum headed small block and iron headed big block?

Thanks for any help

Steve
 
Approximately 150 lbs. I'd heard that 440's weigh 650 with the 340 about 100 lbs. less. Take away another 50 lbs. for aluminum heads.
 
Which big block Steve - RB or low deck? Or are you just asking in general? Methinks there may be a significant difference between the two big blocks...
 
I know I cant pick up a 440 block by myself (for one it's too awkward) 360 block I can pick up. haha yeah i know ima big help right?
 
small block and big block are about one fat woman apart.
 
StrokerScamp said:
small block and big block are about one fat woman apart.
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Oh yeah,I can relate to this!So if I use a small block-then I can put another chubby girl in the seat beside me,Right?
 
d5667 said:
Oh yeah,I can relate to this!So if I use a small block-then I can put another chubby girl in the seat beside me,Right?
Click to expand...

maybe two if they aint too chubby.
 
HemiMark said:
670 with manifolds........... low deck 620........small block..........525

http://www.team.net/sol/tech/engine.html

in God we Trust..........
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but that doesnt take into consideration for aluminum parts. say you gotta all iron 440 VS a small block with aluminum heads, intake and headers. heck that might be 3 fat women worth of difference.
 
StrokerScamp said:
but that doesnt take into consideration for aluminum parts. say you gotta all iron 440 VS a small block with aluminum heads, intake and headers. heck that might be 3 fat women worth of difference.
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You guys fight over the fat chicks, I'll take the all steel 440 and one skinny chick with a big duel induction set up..........
 
So on the iron head 360 vs. aluminum headed 440, the diff would be about 70 lbs?

This assumes those weights are correct (though I don't know if those listed are with cast iron manifolds), and that aluminum heads on a big block save 50 pounds.

Local guy can't catch me. He claims its because his engine weighs 250 pounds more than mine. I guess the 80 cubic inches and aluminum heads he's got counts for nothing. LOL

Steve
 
All depends on the parts really. A forged 4" crank and H beams are heavier... most other racey parts are lighter. I've always used 60lbs for small block to B wedge, and 150lbs from small block to RB wedge similarly built as a guide. /6 and B wedge weigh fairly to the same too. If the guy has cast manifolds, AC, options, etc.... then it could be a lot heavier. My buddy's Cuda went 4100lbs w/o driver with Dana, Hemi 4sp, iron 6bbl, AC, PW, shaker, etc.
 
moper said:
All depends on the parts really. A forged 4" crank and H beams are heavier... most other racey parts are lighter. I've always used 60lbs for small block to B wedge, and 150lbs from small block to RB wedge similarly built as a guide. /6 and B wedge weigh fairly to the same too. If the guy has cast manifolds, AC, options, etc.... then it could be a lot heavier. My buddy's Cuda went 4100lbs w/o driver with Dana, Hemi 4sp, iron 6bbl, AC, PW, shaker, etc.
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....and that was without a fat woman.
 
Thats really good,best I could do was 18.6 with a 235 and a 186 in the front.Oh yeah the car was 69 RR 383 4 speed;but I didnt start it up.
 
moper said:
My buddy's Cuda went 4100lbs w/o driver with Dana, Hemi 4sp, iron 6bbl, AC, PW, shaker, etc.
Click to expand...

My understanding is that the hemi is a good clip heavier than the RB.


HemiMark said:
I'll take the all steel 440 and one skinny chick with a big duel induction set up..........
Click to expand...

Dual induction? Is that a chick with a big mouth and a big mouth friend?

:toothy10:
 
I believe the Hemis are closer to 800 lbs.

And no fat chicks, but a fat driver...lol. He at the time went 340lbs himself. I still got it to go 109mph...lol.
 
Ok Lets see;20"each-honker x4=80 18.6 x2 =37.2 80+37.2=117.2 I beat your 109 I WIN!!!!!!
 
Need to consider automatic transmissions, too. The 727 for the B/RB is a bit heavier than the 904 that was hooked to most LAs.
 
a good set of headers like TTI wont save you much wieght over manifolds.
 
That's a good point, how much does the 727 weigh over the 904? 80 lbs?
 
OEM Mopar Engine Weights
Here's a small list of [approximate] weights for stock engines.
Note most of these are fully dressed engines with stock parts.
We all know the savings to be had with aluminum intakes, ect...



331/354 Hemi with alum. intake and water pump 504
392 Hemi with alum. intake and water pump -564
Slant 6 --------------------------------- 525
273-340 -------------------------------- 525
360--------------------------------------550
361-400 ---------------------------------620
413-440 ---------------------------------670
426 Street Hemi --------------------------765
 
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