73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: 78 Chevyrado on February 10, 2009, 07:41:52 pm

Title: big block weight compared to small block
Post by: 78 Chevyrado on February 10, 2009, 07:41:52 pm

How much more does a bigblock setup weigh than a comparable small block, i.e. with the same accesories and stuff?

Title: Re: big block weight compared to small block
Post by: VileZambonie on February 10, 2009, 07:53:23 pm

It's around a hundred pounds more.

Title: Re: big block weight compared to small block
Post by: eventhorizon66 on February 10, 2009, 09:46:27 pm

Is that all?  All this time, I thought it was more like 200 lbs.  So if you had an aluminum-headed BB, it would weigh roughly what an all-iron SB weighs?

Title: Re: big block weight compared to small block
Post by: 80stepsideguy on February 11, 2009, 02:38:26 am

Just about the same yes.

thanks
pat

Title: Re: big block weight compared to small block
Post by: ccz145a on February 11, 2009, 08:31:50 am

I always thought it was more like 200lbs more with iron heads.

Title: Re: big block weight compared to small block
Post by: Captkaos on February 11, 2009, 10:44:49 am

I think it is 120lbs.  Aluminum heads make it very close to the SBC weight.

Title: Re: big block weight compared to small block
Post by: 78 Chevyrado on February 11, 2009, 10:47:49 am

Thanks guys!  Even if it's 200 that's not bad.   I'm just kinda throwing around the idea of swapping to a big block when the time comes.  

Another question, what do you think it costs to get all the accessory brackets, etc for a big block.  and  does a big block use the same mounts a small block does?  I'd likely be getting everything out of the junkyard, so if it's not too hard to find I'd like to get a serpentine setup since I have to buy it all anyway....

Title: Re: big block weight compared to small block
Post by: Captkaos on February 11, 2009, 11:19:08 am

The BBC will use the same frame mounts if that is what you are talking about.  As for brackets, http://www.alangrovecomponents.com/ should have some if you can't find them in the salvage yard.

Title: Re: big block weight compared to small block
Post by: eventhorizon66 on February 11, 2009, 12:04:57 pm

Also for accessories, check these (http://www.kwikperf.com/bbc_serp_kit.html) out.  It's a good idea if you want a factory-style serpentine setup, but don't want to go fishin' for the BB serpentine setup.

Title: Re: big block weight compared to small block
Post by: 78 Chevyrado on February 11, 2009, 01:28:26 pm

Quote from: eventhorizon66 on February 11, 2009, 12:04:57 pm

Also for accessories, check these (http://www.kwikperf.com/bbc_serp_kit.html) out.  It's a good idea if you want a factory-style serpentine setup, but don't want to go fishin' for the BB serpentine setup.

That looks like the way to go right there!