Max cubic inches for a stock BBC

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Max cubic inches for a stock BBC

Post  GT300TD on February 21st 2013, 12:37 pm

Had a few brewskis with a couple of BBChevy guys, both long time friends. They said that the stock block BBC would handle 572 cubic inches, I said I thought that you have to have an after market block. I've been to the High Flow Dynamics site more than once to compare the difference between BBF and BBC, but need some more 'ammunition' for future discussions.
Thanks Smile




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Re: Max cubic inches for a stock BBC

Post  maverick on February 21st 2013, 12:43 pm

I don't believe you're gonna get 572" into a production 9.8" block. I think they're yanking your unit.
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Re: Max cubic inches for a stock BBC

Post  GT300TD on February 21st 2013, 12:49 pm

How about the tall block 10.2?


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Re: Max cubic inches for a stock BBC

Post  Lem Evans on February 21st 2013, 12:51 pm

It'd still have to have a 4.5 bore....aint gonna happen.

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Re: Max cubic inches for a stock BBC

Post  GT300TD on February 21st 2013, 1:13 pm

Very Happy
What is the most cubic inches they can get out of a 9.8 and a 10.2?


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Re: Max cubic inches for a stock BBC

Post  kim on February 21st 2013, 1:24 pm

http://www.roadsters.com/bbc/

All tabled out for you

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Re: Max cubic inches for a stock BBC

Post  bigblok2000ranger on February 21st 2013, 2:03 pm

496 is about the max on a stock block without major work then maybe 509 with a huge stroke and if the cylinder walls are thick enough, but most will be limited to the 496.
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Re: Max cubic inches for a stock BBC

Post  GT300TD on February 21st 2013, 2:12 pm

Thanks kim and bb ranger hehehe Very Happy cheers


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Re: Max cubic inches for a stock BBC

Post  the Coug on February 21st 2013, 2:41 pm

496 is the absolute max a BBC can be built to ...
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Re: Max cubic inches for a stock BBC

Post  blown86hallet on February 21st 2013, 3:37 pm

.125" on a 454 is around 481-3...... we never went above that...
496 is the max, but that is really pushing it...

I have this battle all the time with the chevy guy's

the chart on the link does not lie
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Re: Max cubic inches for a stock BBC

Post  GT300TD on February 21st 2013, 3:59 pm



Thanks a lot guys. I've known these two since the early 70's and they are very good friends. They respect Fords and never 'run' on them, but they are still Chevy guys. I just want to know a little of what I am talking about when we get together Cool .


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Re: Max cubic inches for a stock BBC

Post  the Coug on February 21st 2013, 5:13 pm

GT300TD wrote: Had a few brewskis with a couple of BBChevy guys, both long time friends. They said that the stock block BBC would handle 572 cubic inches, I said I thought that you have to have an after market block. I've been to the High Flow Dynamics site more than once to compare the difference between BBF and BBC, but need some more 'ammunition' for future discussions.
Thanks Smile





ask him to Prove it ! and them watch him sweat, Cuz he can't do it....there are some very few and far in between instances that you could accidentally find one of those blocks that can go .125 over but those are Far Far in between finds...
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Re: Max cubic inches for a stock BBC

Post  466cj on February 21st 2013, 6:00 pm

572 as everyone has said is NOT going to happen with a stock block BBC, but the good news is a 572 is possible with a stock block BBF. Just watch them chebby guys turn Ford blue with envy. Laughing

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Re: Max cubic inches for a stock BBC

Post  maverick on February 21st 2013, 6:36 pm

466cj wrote:572 as everyone has said is NOT going to happen with a stock block BBC, but the good news is a 572 is possible with a stock block BBF. Just watch them chebby guys turn Ford blue with envy. Laughing

I'm sure that block envy is the reason they told him that b.s.

Take a bare BBF and BBC block and a measuring tape to their house and have them take notes. Rolling Eyes
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Re: Max cubic inches for a stock BBC

Post  rmcomprandy on February 21st 2013, 6:58 pm

GT300TD wrote: Very Happy
What is the most cubic inches they can get out of a 9.8 and a 10.2?


I have built some 572 Chevrolet engines with a stock production tall deck truck block.
4.350" bore and 4.810" stroke. They could go bigger to 4.375" bore on some blocks.
It certainly is not a common build.

Maximum regular 9.8" deck = 527 cubic inches. 4.375" x 4.375"
Much more with a 502 short deck truck block. (stock production bore = 4.466").


Last edited by rmcomprandy on February 21st 2013, 7:04 pm; edited 3 times in total (Reason for editing : addition)

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Re: Max cubic inches for a stock BBC

Post  lghting94 on February 21st 2013, 7:01 pm

What about the 502 chevy block?
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Re: Max cubic inches for a stock BBC

Post  rmcomprandy on February 21st 2013, 7:05 pm

lghting94 wrote:What about the 502 chevy block?

That bore will go to 4.530" however, no more than a 4.375" stroke which is a 565.

You can strech the bore to 4.560" if you fill it to the water pump holes. Then it is, (you guessed it), 572 cubic inches.

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Re: Max cubic inches for a stock BBC

Post  rmcomprandy on February 21st 2013, 7:28 pm

I hear a lot of Ford guys exclaim "they just don't know Fords" when talking about most Chevy guys but, it appears here that a bunch of Ford guys don't know Chevy's either. Shocked

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Re: Max cubic inches for a stock BBC

Post  richter69 on February 21st 2013, 7:43 pm

I try not to mess with them.
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Re: Max cubic inches for a stock BBC

Post  bigblockfox468 on February 21st 2013, 7:52 pm

richter69 wrote:I try not to mess with them.

You Suspect yeah right..... lol!
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Re: Max cubic inches for a stock BBC

Post  61coon on February 21st 2013, 7:56 pm

rmcomprandy wrote:I hear a lot of Ford guys exclaim "they just don't know Fords" when talking about most Chevy guys but, it appears here that a bunch of Ford guys don't know Chevy's either. Shocked


I know about Chevys. I've owned 2 and they are cheap made junk.....
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Re: Max cubic inches for a stock BBC

Post  richter69 on February 21st 2013, 7:58 pm

kinda like the 6.0/6.4/6.7 diesel engines....
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Re: Max cubic inches for a stock BBC

Post  bigblockfox468 on February 21st 2013, 8:31 pm

bigblockfox468 wrote:
richter69 wrote:I try not to mess with them.

You Suspect yeah right..... lol!


Aw shit...I thought you were referring to the BBC owners.....my bad Embarassed
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Re: Max cubic inches for a stock BBC

Post  bbf-falcon on February 21st 2013, 10:03 pm

rmcomprandy wrote:I hear a lot of Ford guys exclaim "they just don't know Fords" when talking about most Chevy guys but, it appears here that a bunch of Ford guys don't know Chevy's either. Shocked

I don't care to admit that I don't know ANYTHING about Chevy engines. Never interested me enough to find out. Smile

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Re: Max cubic inches for a stock BBC

Post  Bret Powell on February 21st 2013, 10:09 pm

lghting94 wrote:What about the 502 chevy block?

The early 502s were Bowtie blocks and I built a pair of those years ago using 4.61 bore.

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