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"COMPRESSION HEIGHT FOR BIG BLOCK CHEVY"

  
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"COMPRESSION HEIGHT FOR BIG BLOCK CHEVY"

 
pepsi1 pepsi1
Guru | Posts: 1718 | Joined: 09/11
Posted: 01/01/13
11:12 PM

"THIS COMPRESSION HEIGHT IS FOR BIG BLOCK CHEVY"

CUBIC  ROD                                     DECK                COMPRESSION    
INCH   LENGTH   BORE        STROKE     HEIGHT              HEIGHT

396    6.135"   4.094"         3.760"       9.800"              1.765"
402    6.135"   4.125"         3.760"       9.800"              1.765"
427    6.135"   4.250"         3.760"       9.800"              1.765"
434    6.135"   4.125"         4.000"       9.800"              1.645"
454    6.135"   4.250"         4.000"       9.800"              1.645"
489    6.135"   4.250"         4.250"       9.800"              1.520"
489    6.385"   4.250"         4.250"       9.800"              1.270"
489    6.535'   4.250"         4.250"       10.200"             1.520"
502    6.135"   4.466"         4.000"       9.800"              1.645"
540    6.385"   4.466"         4.250        9.800"              1.270"
 
BOB  

Dave632 Dave632
Addict | Posts: 2225 | Joined: 07/08
Posted: 01/02/13
04:08 PM

Nice post but I feel left out here Bob.

You did not include any of the engines I built in the last 10 years.
Then again I am not too normal. Crazy
Look at my post count 1666, the devil made me do it +1000. Tongue

Dave  
[[SUPPORT AMERICAN CARS, STOMP A RICE CAR TODAY.]]

skyeking skyeking
Addict | Posts: 2738 | Joined: 08/09
Posted: 01/02/13
05:19 PM

Hi there,
The more I read about BBCs the more I like
the small block of which I presume, [like many others]
is the far more reliable of all the BOW TIE Brigade
and goes for ALL without Exception...
Chew on that Amigo..  
skyeking

pepsi1 pepsi1
Guru | Posts: 1718 | Joined: 09/11
Posted: 01/02/13
06:04 PM

Icon QuoteDave632:
Nice post but I feel left out here Bob.

You did not include any of the engines I built in the last 10 years.
Then again I am not too normal. Crazy
Look at my post count 1666, the devil made me do it +1000. Tongue

Dave


Dave:
You know as I was doing this I thought about your 632. Do you remember all the specs on it? I'll put it in. Anything bigger then a "coffee can for bore", I get lost...LOL...

Bob  

68scott385 68scott385
Guru | Posts: 1990 | Joined: 10/09
Posted: 01/02/13
06:58 PM

I want to know how the 454 & 489 can have the same bore & stroke but one is 35 inches bigger than the other?! TYPO(s)?

By my math, 4.25 bore & 4.25 stroke make 482, not 489. I hate to nit-pick but we want valid information, right?  
68scott385 68scott385 68scott385

pepsi1 pepsi1
Guru | Posts: 1718 | Joined: 09/11
Posted: 01/02/13
09:58 PM

Because yours truly screwed up Okay!  Confused

Bob  

68scott385 68scott385
Guru | Posts: 1990 | Joined: 10/09
Posted: 01/02/13
10:13 PM

We all do Bob. I'm not trying to be ugly. Colleectively, we have enough trouble with uninformed newbs wanting the moon for peanuts, if we, as a group, publish inferior information, we confuse the newbs we try so hard to get/keep on the straits of reality.

The only way I caught the typo was that I was copying the information for myself, so don't feel slighted by my pointing out an error, instead feel good that someone is getting some use of the knowledge you are sharing.  
68scott385 68scott385 68scott385

pepsi1 pepsi1
Guru | Posts: 1718 | Joined: 09/11
Posted: 01/02/13
11:13 PM

Icon Quote68scott385:
We all do Bob. I'm not trying to be ugly. Colleectively, we have enough trouble with uninformed newbs wanting the moon for peanuts, if we, as a group, publish inferior information, we confuse the newbs we try so hard to get/keep on the straits of reality.

The only way I caught the typo was that I was copying the information for myself, so don't feel slighted by my pointing out an error, instead feel good that someone is getting some use of the knowledge you are sharing.


Thanks Scott:
None taken.  Thats great to know some guys really do read posts...LOL...If you see anything else please let me know. Dealing with numbers in columns bites. Then the columns keep shifting I'll bet I did that 8 times before it came close... I did it for the Small Block also....Yeah I don't want to think I'm helping guys, and giving the wrong information... Confused ...LOL...
Thanks again Scott
Bob  

pepsi1 pepsi1
Guru | Posts: 1718 | Joined: 09/11
Posted: 01/02/13
11:16 PM

Icon QuoteDave632:
Nice post but I feel left out here Bob.

You did not include any of the engines I built in the last 10 years.
Then again I am not too normal. Crazy
Look at my post count 1666, the devil made me do it +1000. Tongue

Dave


Dave
I saw that and wasn't going to touch it!

"Happy Holidays Dave"

Bob  

68scott385 68scott385
Guru | Posts: 1990 | Joined: 10/09
Posted: 01/02/13
11:49 PM

Icon Quote68scott385:
We all do Bob. I'm not trying to be ugly. Colleectively, we have enough trouble with uninformed newbs wanting the moon for peanuts, if we, as a group, publish inferior information, we confuse the newbs we try so hard to get/keep on the straits of reality.

The only way I caught the typo was that I was copying the information for myself, so don't feel slighted by my pointing out an error, instead feel good that someone is getting some use of the knowledge you are sharing.


Icon Quotepepsi1:
Thanks Scott:
None taken.  Thats great to know some guys really do read posts...LOL...If you see anything else please let me know. Dealing with numbers in columns bites. Then the columns keep shifting I'll bet I did that 8 times before it came close... I did it for the Small Block also....Yeah I don't want to think I'm helping guys, and giving the wrong information... Confused ...LOL...
Thanks again Scott
Bob


I've tried to post information in columns too, it ain't easy. I've tried to copy/paste from Word & Excel and they don't transfer well either. I make a point of proof-reading everything before I hit the post button but it doesn't always work.  
68scott385 68scott385 68scott385

Dave632 Dave632
Addict | Posts: 2225 | Joined: 07/08
Posted: 01/03/13
10:11 AM

Bob I was just trying to give you a hard time.
I don't think I have ever seen a post on this site looking for information on a 632.
Just for kicks here are the specs. Bore 4.60, stroke 4.75, rod length 6.7 this was the same for both engines, deck height on the Big M = 10.2 on the Keith Black aluminum it was 10.6.
Both of these motors were reliable seeing as how they were being used. Never took out a piston or a rod in either. Bearings did get beat up some as these used steel rods and the N20 tended to beat them up pretty well.

As far as my post count it is above the devil number so I guess I am safe for now. Grin
Dave  
[[SUPPORT AMERICAN CARS, STOMP A RICE CAR TODAY.]]

pepsi1 pepsi1
Guru | Posts: 1718 | Joined: 09/11
Posted: 01/03/13
03:38 PM

Dave :

With that length of an arm it doesn't surprise me one bit. Can you imagine the frequncy those rods saw? I don't know if aluminum would have stood up any better, with a shock load like that. Too bad we didnt cross paths racing back then at Great Meadows and E-Town. Grin  Cool

Did you ever run into the Persico Bros. From Rochester, Buffalo area. They ran a 78,79 Pro,Mod Camaro.
Funny story, I was at E-Town (When they had the Summer Nationals were @ E-Town) with my once friend (20 year project) they where thrashing, and were a person short,I asked them if I could give them a hand.  
  They knew was as Bob. I knew them as Mike, Ron. Mike said yeah do this, he did  the clutch. An injector stuck. That burned the piston. They made the final rounds. I don't know how they out as (20 year project) was mourning I gotta go to work in the morning. NJ to Mass.
  I saw them that same year at NE Dragway Epping NH IHRA then. They asked me where I went? They ran runner-up. Then I told them my name. The rest is history. Great guys.  

skyeking skyeking
Addict | Posts: 2738 | Joined: 08/09
Posted: 01/03/13
03:54 PM

So there!!
Chew on that Amigos!!!  
skyeking

Dave632 Dave632
Addict | Posts: 2225 | Joined: 07/08
Posted: 01/04/13
03:35 PM

Never ran into the Persico Bros.
I moved to Fla in 78 so I was gone from the area by then and
I did not get back into racing until the 90s when my then teenage
son took a big interest in cars.
Yes, too bad we did not meet back then.  
[[SUPPORT AMERICAN CARS, STOMP A RICE CAR TODAY.]]