SmallBlock VS BigBlock

[moparcrazy]

So I have a 440 with iron block & aluminum everything else, my question is would a all iron Smallblock weigh the same ?, more? or less?

 

[mopar 3 B]

What do you mean by aluminum eveything else?

 

[5.7 hemi]

A fully dressed "iron" small weighs damn the the same as a 440 iron block fully dressed with aluminum heads, water pump/housing and intake. The weight of said 440 would be around 510-520 lbs.

 

[moparcrazy]

What do you mean by aluminum eveything else?

not internals just head's, water pump, manifold, pulley's, brakets

 

[66Satellite47]

I may be wrong, but the small block is still lighter. But a big block will always be more consistant

 

[Budnicks]

Iron 273-340 LA is appr. 525#'s
Iron 225 slant 6 is appr. 525#'s
Iron 360 LA {I think} is appr. 550#'s
Iron 413-440 RB is appr. 670#'s
Iron 361-400 B is appr. 620#'s
Iron 331-354 Hemi is appr. 504#'s
Iron 392 Hemi is appr. 564#'s
Iron 426 "Street" Hemi is 765#'s
all aluminum KB Hemi starts @ appr. 530#'s

if that helps any...

 

[5.7 hemi]

AndyF over on FABO just weighed his stroked 400, no carb or accessories and it's 516lbs.

 

[mopar 3 B]

Mopar performance had some light wt small blocks for the dirt track boys. If I remember right 600hp at 200 lbs.

 

[Bladecutter]

Mopar performance had some light wt small blocks for the dirt track boys. If I remember right 600hp at 200 lbs.

200 lbs?! An iron 360 is 550. The Mopar 4.7 Corsair motor, iron block w/ aluminum SOHC heads is 435 lbs. Have You got a link for these 200 lb wonders? Thats less than VW 1600. They are 250 lbs. full dress.

 

[Budnicks]

Mopar performance had some light wt small blocks for the dirt track boys. If I remember right 600hp at 200 lbs.

They had all alum. 410 sprint 830+ HP
A8 race block/W9 race heads combos
alky Fuel injected ones too,
but there's no way ever they were only 200 Lbs,
they were listed as 345 lbs
they are also are $43k reg. - $48k outlaw
http://www.hotrod.com/articles/ccrp-0608-mopar-spint-car-engine/

http://moparproshop.com/inc/sdetails/925

not sure what the hell is going on with the links

 

[Bladecutter]

According to Hughes, weight of stock 413, 426W & 440,,,,670 lbs.
Also according to Hughes, an 'LA' 360 is what i said previous post,,
550.
Info i took off of a link on FABO:
Stage 6 heads(i assume that means alum) saves. 50lbs for the pair.
Alum intake saves. 25 lbs.
Alum water pump saves 15 lbs.
Headers saves. 25 lbs.
Overall weight savings 115 lbs.

670 lbs
-115 lbs
= 555 lbs

 

[Bladecutter]

not internals just head's, water pump, manifold, pulley's, brakets
View attachment 500895

You are right around 555 lbs if You had headers...it looks like You have cast iron manifolds,,if so, add back 25 lbs.
So in answer to Your question, You are in weight neighborhood of a stock 360.
The stats for the alum parts come from BigBlockDart.com
The stat for stock 440 weight(670 lbs)comes from
hughesengines.com

 

[Photon440]

200 lbs?! An iron 360 is 550. The Mopar 4.7 Corsair motor, iron block w/ aluminum SOHC heads is 435 lbs. Have You got a link for these 200 lb wonders? Thats less than VW 1600. They are 250 lbs. full dress.

Made for sprint car racing, the Mopar A8 small block engine is good for 850 hp. @ 7800 rpm. at only 345 pounds. The block itself is only 130 lbs. Get one on Amazon before they're gone. https://www.amazon.com/Mopar-P5007909AB-Sprint-Car-Block/dp/B007NPZAC8

 

[5.7 hemi]

That's a bad bitch!!

 

[Bladecutter]

Made for sprint car racing, the Mopar A8 small block engine is good for 850 hp. @ 7800 rpm. at only 345 pounds. The block itself is only 130 lbs. Get one on Amazon before they're gone. https://www.amazon.com/Mopar-P5007909AB-Sprint-Car-Block/dp/B007NPZAC8

This i figured. That it could be less than 400lbs, but not less than 300lbs. Is the block based on 340 geometry?

 

[Bladecutter]

That's a bad bitch!!

Yeah, X2!

 

[Bladecutter]

Made for sprint car racing, the Mopar A8 small block engine is good for 850 hp. @ 7800 rpm. at only 345 pounds. The block itself is only 130 lbs. Get one on Amazon before they're gone. https://www.amazon.com/Mopar-P5007909AB-Sprint-Car-Block/dp/B007NPZAC8

Bet some of those were running Kinsler fuel injection gear.

 

[Bladecutter]

AndyF over on FABO just weighed his stroked 400, no carb or accessories and it's 516lbs.

That seems to match close to the figures i ferreted out.

 

[moparcrazy]

That seems to match close to the figures i ferreted out.

Bladecutter 400 block weigh less then a 440 !!

 

[Bladecutter]

Bladecutter 400 block weigh less then a 440 !!

Oop....i thought the 400 would be same as 413/440, but like i found on Hughes, stock 440 weight is 670, so alum heads save 50, alum intake saves 25 & the wata pump saves 15. Im only going off stats i found, no hands on experience. I was intrigued by Your question, so i dug a little. By the figures i found, You're not much heavier than a stock small block.