B/RB Chrysler Valley Pan Bolt Pattern Dimensions

cutta · 05-03-2013, 09:37 AM

If anyone has this data, it would be much appreciated. I need to draw up a design. To clarify, I'm looking for the dimension for the B and RB blocks. I believe the width changes some.

John Dinkel · 05-03-2013, 12:54 PM

Go to an auto parts store and buy a gasket for a 383 and one for a 440. The 440 is bigger.

GTX JOHN · 05-05-2013, 03:20 AM

Approximately one inch difference as I remember.
10 1/4 C/L of intake bolt holes on Low Deck and
11 1/4 on High Deck in overall width on undecked
blocks.
Is that the dimension you need.........Monday I could jig
some up and give you any other Dimensions you need.
Rods are .4 to .5 longer depending on engine High Block
The valley pan hold down bolts are in the exact same place
but the straps are wider past the holes on the high block.

GTX JOHN · 05-05-2013, 06:04 PM

You can cut down big block high deck brackets to fit low
deck . You can fab or buy aftermarkets from 440 Source.
Be sure there is clearance for intake to heads to fit properly.

treessavoy · 05-05-2013, 07:12 PM

Quote:

Originally Posted by GTX JOHN

You can cut down big block high deck brackets to fit low
deck . You can fab or buy aftermarkets from 440 Source.
Be sure there is clearance for intake to heads to fit properly.

John,

Doesn't Indy make their own valley pans for both blocks?

JimR

GTX JOHN · 05-06-2013, 04:31 AM

Yes........They are a pain to use.... at least the one piece ones.
You have to pull off a head to get it of to access the lifters
and cam. I am not sure if they fit std. heads as I have only
used them with Indy Heads.
440 Source make several different ones- also at a reasonable price as well.
I just use the stock tin ones on most application and trim
the Head area to use paper gaskets and buy Beer for a
Month on the Savings.

cutta · 05-07-2013, 08:55 AM

GTX John, I will get a schematic of the dimensions I need and post it here so you can see what dimensions I'm looking for. Schematic is now attached

GTX JOHN · 05-08-2013, 04:19 AM

Boy............ am I lost. I need some reference point to
start from and I will jig it up. Are we starting at the machined
areas on front and back of block where valley pan bolt down.
Can anybody explain the diagram to me?

Mack Reeves · 05-08-2013, 06:27 AM

Quote:

Originally Posted by GTX JOHN

Boy............ am I lost. I need some reference point to
start from and I will jig it up. Are we starting at the machined
areas on front and back of block where valley pan bolt down.
Can anybody explain the diagram to me?

I'm with you on that one... I thought I was the dumb one...

I have a complete 400 engine in my garage that I will do any measurements needed I just need to know where...... It also has the two piece valley pan and I have a spare one piece one.... I will ship it to you it that will help....

cutta · 05-08-2013, 09:17 AM

Okay, its funny how things can seem simple to you but not to others lol. Anyway, here is a picture of a valley pan to help connect the dots so to speak.

In the schematic I laid out the basic bolt layout of the valley pan and drew a line through the centers so as to indicate they sit on an angle. Imagine my schematic laid over the pic of the valley pan where the wholes line up with one another. This should make things more clear.

05-03-2013, 09:37 AM	#1
cutta Member Join Date: Jul 2008 Location: Little Rock, AR Posts: 347 Likes: 0 Liked 5 Times in 2 Posts	B/RB Chrysler Valley Pan Bolt Pattern Dimensions If anyone has this data, it would be much appreciated. I need to draw up a design. To clarify, I'm looking for the dimension for the B and RB blocks. I believe the width changes some. __________________ Adriel Paradise, Paradise Racing Team Driver/Crew Chief(at least my dad claims me to be) B.S. Mechanical Engineering, University of Arkansas Last edited by cutta; 05-03-2013 at 11:01 AM.

05-03-2013, 12:54 PM	#2
John Dinkel Senior Member Join Date: Nov 2005 Location: Pinckney, Michigan Posts: 507 Likes: 399 Liked 263 Times in 68 Posts	Re: B/RB Chrysler Valley Pan Bolt Pattern Dimensions Go to an auto parts store and buy a gasket for a 383 and one for a 440. The 440 is bigger. __________________ John Dinkel 3295 STK

05-05-2013, 03:20 AM	#3
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,726 Likes: 2,775 Liked 2,448 Times in 691 Posts	Re: B/RB Chrysler Valley Pan Bolt Pattern Dimensions Approximately one inch difference as I remember. 10 1/4 C/L of intake bolt holes on Low Deck and 11 1/4 on High Deck in overall width on undecked blocks. Is that the dimension you need.........Monday I could jig some up and give you any other Dimensions you need. Rods are .4 to .5 longer depending on engine High Block The valley pan hold down bolts are in the exact same place but the straps are wider past the holes on the high block. Last edited by GTX JOHN; 05-05-2013 at 02:06 PM.

05-05-2013, 06:04 PM	#4
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,726 Likes: 2,775 Liked 2,448 Times in 691 Posts	Re: B/RB Chrysler Valley Pan Bolt Pattern Dimensions You can cut down big block high deck brackets to fit low deck . You can fab or buy aftermarkets from 440 Source. Be sure there is clearance for intake to heads to fit properly.

05-06-2013, 04:31 AM	#6
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,726 Likes: 2,775 Liked 2,448 Times in 691 Posts	Re: B/RB Chrysler Valley Pan Bolt Pattern Dimensions Yes........They are a pain to use.... at least the one piece ones. You have to pull off a head to get it of to access the lifters and cam. I am not sure if they fit std. heads as I have only used them with Indy Heads. 440 Source make several different ones- also at a reasonable price as well. I just use the stock tin ones on most application and trim the Head area to use paper gaskets and buy Beer for a Month on the Savings.

05-07-2013, 08:55 AM	#7
cutta Member Join Date: Jul 2008 Location: Little Rock, AR Posts: 347 Likes: 0 Liked 5 Times in 2 Posts	Re: B/RB Chrysler Valley Pan Bolt Pattern Dimensions GTX John, I will get a schematic of the dimensions I need and post it here so you can see what dimensions I'm looking for. Schematic is now attached Attached Thumbnails __________________ Adriel Paradise, Paradise Racing Team Driver/Crew Chief(at least my dad claims me to be) B.S. Mechanical Engineering, University of Arkansas Last edited by cutta; 05-07-2013 at 09:38 AM.

05-08-2013, 04:19 AM	#8
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,726 Likes: 2,775 Liked 2,448 Times in 691 Posts	Re: B/RB Chrysler Valley Pan Bolt Pattern Dimensions Boy............ am I lost. I need some reference point to start from and I will jig it up. Are we starting at the machined areas on front and back of block where valley pan bolt down. Can anybody explain the diagram to me?

05-08-2013, 09:17 AM	#10
cutta Member Join Date: Jul 2008 Location: Little Rock, AR Posts: 347 Likes: 0 Liked 5 Times in 2 Posts	Re: B/RB Chrysler Valley Pan Bolt Pattern Dimensions Okay, its funny how things can seem simple to you but not to others lol. Anyway, here is a picture of a valley pan to help connect the dots so to speak. In the schematic I laid out the basic bolt layout of the valley pan and drew a line through the centers so as to indicate they sit on an angle. Imagine my schematic laid over the pic of the valley pan where the wholes line up with one another. This should make things more clear. __________________ Adriel Paradise, Paradise Racing Team Driver/Crew Chief(at least my dad claims me to be) B.S. Mechanical Engineering, University of Arkansas