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small block vs. big block weight? #1135152
12/16/11 01:02 PM
12/16/11 01:02 PM
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Lima, Peru
domingo Offline OP
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How much would a stock block 340 with w2 iron heads and aluminum intake weigh

vs.

a stock block 440 with aluminum heads and aluminum intake?

Re: small block vs. big block weight? [Re: domingo] #1135153
12/16/11 02:30 PM
12/16/11 02:30 PM
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Kalispell Mt.
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HotRodDave Offline
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Don't know the total but I got tired of hearing the BS about how close in weight the blocks are and through a 400 block on a scale just now and the bare block and caps weighs 220# while a 360 roller block with caps is 165# on the same scale.


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: small block vs. big block weight? [Re: HotRodDave] #1135154
12/16/11 02:35 PM
12/16/11 02:35 PM
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HotRodDave Offline
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And in case you are wondering a 596 head (assembled) weighs 50# and a 516 head (assembled) weighs 48#


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: small block vs. big block weight? [Re: HotRodDave] #1135155
12/16/11 02:39 PM
12/16/11 02:39 PM
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Charleston
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sixpackgut Offline
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I have always heard a bb with aluminum heads weighs the same as an all iron sb


Gen 3 power 6.22@110, 9.85@135
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performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: small block vs. big block weight? [Re: HotRodDave] #1135156
12/16/11 02:40 PM
12/16/11 02:40 PM
Joined: Oct 2006
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quick77rt Offline
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What year block, my older 71 360-s are near 180 and my x blocks are over 215 with the 4 bolt caps, however id like to try a better scale, a digi home scale I dont feel is super accurate th way the weight is spread out.


I never ask the weight of big blocks, just see how much the yard gives me for the cast iron.

Re: small block vs. big block weight? [Re: quick77rt ] #1135157
12/16/11 02:47 PM
12/16/11 02:47 PM
Joined: Nov 2007
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Kirkland, Washington
Pacnorthcuda Offline
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Quote:


I never ask the weight of big blocks, just see how much the yard gives me for the cast iron.






Big-Blocks rule!

Re: small block vs. big block weight? [Re: quick77rt ] #1135158
12/16/11 02:50 PM
12/16/11 02:50 PM
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dogdays Offline
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I think you're misremembering the point, Dave, that an RB bare block weighs about the same as a B bare block.

I can't remember anyone here on this board trying to say that a 440 weighs as much as a 360. Now if the 360 is factory stock and the 440 has as many aluminum parts on it and lightweight reciprocating assembly, then they're probably close...but stock-to-stock the 440 weighs more than 100# more according to all the published data.

R.

Re: small block vs. big block weight? [Re: dogdays] #1135159
12/16/11 02:56 PM
12/16/11 02:56 PM
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Kirkland, Washington
Pacnorthcuda Offline
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Quote:

I think you're misremembering the point, Dave, that an RB bare block weighs about the same as a B bare block.

I can't remember anyone here on this board trying to say that a 440 weighs as much as a 360. Now if the 360 is factory stock and the 440 has as many aluminum parts on it and lightweight reciprocating assembly, then they're probably close...but stock-to-stock the 440 weighs more than 100# more according to all the published data.

R.




Thats my thoughts too---Take a 440 and use AL heads/intake/waterpump housing and you're talking SB weight. Not sure if a lighter recip weight is going to help that much in the overall weight (maybe) but it can't hurt!

Re: small block vs. big block weight? [Re: Pacnorthcuda] #1135160
12/16/11 03:49 PM
12/16/11 03:49 PM
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Kalispell Mt.
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HotRodDave Offline
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How can you even think it is fair to compare a BB with a bunch of $$$ tied up in aluminum stuff but saddle the SB with all the factory iron. If you want to make it fair then give the SB aluminum heads also.

Also just weighed cranks, 400 cast crank (the lightest BB crank) 63#

360 crank (heaviest SB crank) 57#

6# rotateing weight is a lot more important to going fast than 6# static weight BTW


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: small block vs. big block weight? [Re: HotRodDave] #1135161
12/16/11 03:53 PM
12/16/11 03:53 PM
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Kalispell Mt.
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HotRodDave Offline
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69 440 HP block, no main caps and .060 over is 215# add all that metal back on and it will definately be more than the 400 by at least 10# and have a heavier crank.


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: small block vs. big block weight? [Re: HotRodDave] #1135162
12/16/11 04:08 PM
12/16/11 04:08 PM
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Kirkland, Washington
Pacnorthcuda Offline
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Quote:

How can you even think it is fair to compare a BB with a bunch of $$$ tied up in aluminum stuff but saddle the SB with all the factory iron. If you want to make it fair then give the SB aluminum heads also.

Also just weighed cranks, 400 cast crank (the lightest BB crank) 63#

360 crank (heaviest SB crank) 57#

6# rotateing weight is a lot more important to going fast than 6# static weight BTW




The comparison is strictly WEIGHT (Not $$$), Obviously a SB with AL goodies would be lighter yet----duh.

Yes Rotating weight is more important---NEWSFLASH--RECIPROCATING weight is even More important than rotating.
But only the static weight of the assembly is germane to the issue at hand.

Re: small block vs. big block weight? [Re: domingo] #1135163
12/16/11 04:14 PM
12/16/11 04:14 PM
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Alberta Canada
StrokerAspen Offline
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Quote:

How much would a stock block 340 with w2 iron heads and aluminum intake weigh

vs.

a stock block 440 with aluminum heads and aluminum intake?




I haven't weighed any of my stuff, but I would guess they aren't far off of each other. My W2's feel pretty heavy!

I think my combo would probably weigh close to the same as a big block with iron heads, but I am using a tall deck R3 now.

-Kenny

Re: small block vs. big block weight? [Re: domingo] #1135164
12/16/11 04:20 PM
12/16/11 04:20 PM
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Romeo MI
MR_P_BODY Offline
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Quote:

How much would a stock block 340 with w2 iron heads and aluminum intake weigh

vs.

a stock block 440 with aluminum heads and aluminum intake?




Rule of thumb is 100# different as said for stock to
stock... with a stock SB at 500#... take off about
15# for the intake thats about 485#.. a 440 stock is
about 600# so take off about 35# for heads and another
15# for the intake, you have about 550#... just all
rough weights... if you were to change the W-2 heads
you can knock off 40# more

Re: small block vs. big block weight? [Re: domingo] #1135165
12/16/11 04:22 PM
12/16/11 04:22 PM
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Northern Indiana
Dunnuck Racing Offline
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I went from a 440 with aluminm heads to my small block with aluminum heads,and lost 70 lbs. Both were similarly equipped(headers,motor plate,etc.)

Keith

Re: small block vs. big block weight? [Re: Dunnuck Racing] #1135166
12/16/11 05:57 PM
12/16/11 05:57 PM
Joined: Jan 2003
Posts: 9,670
Lima, Peru
domingo Offline OP
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I am asking because Id like to know if it would make much of a difference handling to go from a stock stroke 440 with all the aluminum goodies, to a 340 stroker with w2 heads and aluminum intake.

I have the 440 ready and assembled, and I also have the parts to build a 340 stroker with the w2 heads but its all apart....

I was just thinking out loud.

Domingo

Re: small block vs. big block weight? [Re: domingo] #1135167
12/16/11 06:03 PM
12/16/11 06:03 PM
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LONG ISLAND
fishy340 Offline
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100lbs give or take 5 lbs! As far as handeling goes thats a huge difference..ps plus the w2 headed 340 will make more power...

Re: small block vs. big block weight? [Re: domingo] #1135168
12/16/11 06:14 PM
12/16/11 06:14 PM
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Posts: 24,562
Brookeville, Md
Mr.Yuck Offline
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Quote:

How much would a stock block 340 with w2 iron heads and aluminum intake weigh

vs.

a stock block 440 with aluminum heads and aluminum intake?



no idea what they weigh but I know which one will make the most power.


[IMG]http://i66.tinypic.com/pui5j.jpg[/IMG]
Coming soon!!!!
Re: small block vs. big block weight? [Re: fishy340] #1135169
12/16/11 06:16 PM
12/16/11 06:16 PM
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck Offline
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Quote:

100lbs give or take 5 lbs! As far as handeling goes thats a huge difference..ps plus the w2 headed 340 will make more power...




thanks I needed a good laugh

Re: small block vs. big block weight? [Re: domingo] #1135170
12/16/11 07:13 PM
12/16/11 07:13 PM
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Kalispell Mt.
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HotRodDave Offline
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If by "all the aluminum goodies" you mean water pump and housing also then there is gonna be less than 20# differance and the advantage may actually go to the BB because the weight will be slightly lower, either way it will be very slightly different. As for witch one makes more power it will depend on more than just saying aluminum BB heads VS W2, a stage V is aluminum but so is a stealth and a good W2 can make more HP than a stock stealth head so we would need to know more about the two combos.


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: small block vs. big block weight? [Re: Mr.Yuck] #1135171
12/16/11 07:53 PM
12/16/11 07:53 PM
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ademon Offline
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Quote:

Quote:

How much would a stock block 340 with w2 iron heads and aluminum intake weigh

vs.

a stock block 440 with aluminum heads and aluminum intake?



no idea what they weigh but I know which one will make the most power.


well we know its not your 440-6 from your ET

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