Aluminum vs. Iron BBC for the street

[blakeaz33]

Looking for information or feedback on advangages / disadvantages of aluminum versus iron block BBC for street use. What is the weight differential on a stock iron SBC vs an aluminum BBC. Anyone have links to to info or discussion on these topics?

[ProdigyCustoms]

A complete all aluminum big block is barely north of 400 LBS. I do not know the weight of iron small blocks, but I believe it is about the same. No problem with the aluminum block on the street. They run cooler and weigh less.

[Bandit]

A complete all aluminum big block is barely north of 400 LBS. I do not know the weight of iron small blocks, but I believe it is about the same. No problem with the aluminum block on the street. They run cooler and weigh less.
I agree, if you can justify the extra $4000 or so to save 100 lbs. off the nose of your car, they are the ultimate. :hail: I want one in the worst way. No disadvantages on the street that I know of. Just the big price tag. :wow:

[deuce_454]

no disadvantage.. and BBC's still outperform most every engine out there when built right.. head flow is easily in the 400 range with streetable heads, my dream engine is a 499 or 522 all aluminum big block chevy with a crower ultralight rotating assembly, profiler heads and a kinsler injection.. but my bank doesnt feel me on this...

[rocketman]

i'm working on a 33 ford coupe that will have 510 aluminum motor in it with kinsler efi injection.a semi pro street style hiboy,i just wish it would be done for this summer but it wont

[deuce_454]

not to hijack but... this is whats going in my 32 roadster.. iron 454, 512 casting, steel crank, L88 rods, 11:1, ported oval port heads, Enderle stack injection TEC 3 fmu

[rocketman]

sweet,thats gonna be one nice 32

[clill]

as long as we are throwing in 32's..

[mazspeed]

as long as we are throwing in 32's..
Is that one yours Charlie?

[clill]

Yep.....better info on it at www.musclerides.com

http://www.musclerides.com/Pages/Members/madeyoulook_1.php

[camcojb]

Yep.....better info on it at www.musclerides.com (http://www.musclerides.com/)

http://www.musclerides.com/Pages/Members/madeyoulook_1.php

lets see the other one! :unibrow:

Jody

[mazspeed]

Yep.....better info on it at www.musclerides.com

http://www.musclerides.com/Pages/Members/madeyoulook_1.php

Looks like my dad's 32, sort of :lol:

[clill]

the other one

[deuce_454]

WOW! love the little details, things like the fuel rail cover on the birdcatcter! if mine turns out half as nice ill he one happy puppy :thumbsup:

[ProdigyCustoms]

Yup, I hate Charlie!

[rocketman]

those are some sweet 32's,my 33 is going to have the headers come out the hoodsides and the injector stacks out the top of the hood.that champange roadster is awesome

[3kidsnotime]

What about the aluminum big block question :rolleyes:

[blakeaz33]

What about the aluminum big block question :rolleyes:

Should have been more specific in my original post - I believe I've got a pretty good understanding of the the pros with aluminum, from what I understand an all aluminum BBC s/b approximately comparable in weight to a SBC. I'm planning on going with an all aluminum BBC for my project and was interested in anyfeed back on potential negatives I may not have taken into consideration for this project. It is the typical PT 69 camaro with AC and 6 spd, C5 clip, and DSE quadralink 9" rear. Appreciate any feedback of links to info - Thanks in advance.

[deuce_454]

... anyfeed back on potential negatives I may not have taken into consideration for this project.

appart from having to use de-mineralized water in your coolant (which i think most of us are willing to accept)... there are no negatives.. (appart from price perhaps)

go for it i say


btw.. dont forget to post some pics!

[Bandit]

appart from having to use de-mineralized water in your coolant (which i think most of us are willing to accept)... there are no negatives.. (appart from price perhaps)

You SHOULD use distilled water for iron blocks as well (I don't always, escpecially when I'm leaking/burning a lot of coolant...:( )