The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > All 4x4 Tech & Off Roading

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 03-02-2008, 07:05 PM   #26
RustyParts
Registered User
 
RustyParts's Avatar
 
Join Date: May 2006
Location: Wyman, Kentucky
Posts: 403
Re: 67-72 BigBlock 4x4s! Pos pics info here.

I put a 454 in my '72 Jimmy and had to do some work to the firewall on the drivers side for valve cover clearance. I cut out some of the firewall moved it towards the drivers side and rewelded it.

I also moved the engine, tranny/transfer case forward 1" for HEI clearance, didn't really have to move the engine, but the HEI was to close for my preference.

Also had to trim the frame rails for header clearance.
Attached Images
     
__________________
1972 GMC Jimmy, 4WD, 454 CI, 350 Turbo, 4" lift, 35" tires

The math teacher said my son "Bubba" could be a mathmatical genius. cause he's got 13 fingers!
RustyParts is offline   Reply With Quote
Old 03-06-2008, 04:20 AM   #27
CDA 455
MidlifeCrisisUnderWay
 
CDA 455's Avatar
 
Join Date: Jul 2007
Location: 43rd State
Posts: 139
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Awesome thread!



As soon as I put the Ram Jet 502 in my '72 Blazer, I'll post pics.
__________________
DIY4X

1972 CST Blazer <---sold
CDA 455 is offline   Reply With Quote
Old 04-02-2008, 05:57 PM   #28
green724x4
Registered User
 
green724x4's Avatar
 
Join Date: Feb 2007
Location: MI
Posts: 214
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Here is my swap.
427 bored .30 to 431 ci
Thorley = 304-Y
Moved drivetrain 7/8" forward for clearance.
Running what I believe is a oil pan out of a passanger car with stock crossmember. Som slight modifications to the firewall.
Attached Images
     
green724x4 is offline   Reply With Quote
Old 04-05-2008, 01:39 AM   #29
Virginia72SWB4X4
Registered User
 
Join Date: Jan 2004
Location: Fredericksburg, Virginia
Posts: 144
Re: 67-72 BigBlock 4x4s! Pos pics info here.

I'm confused about whats different between a 2WD and 4 WD when it comes to engine placement. There were BB's put in 2WD trucks.
Does the engine sit further back or higher in the engine bay in a 4WD then a 2WD?

Why the need to cut the firewall on a 4WD?

Gary
Virginia72SWB4X4 is offline   Reply With Quote
Old 04-05-2008, 08:36 PM   #30
Yukon Jack
Post Whore
 
Yukon Jack's Avatar
 
Join Date: Feb 2000
Location: Rose Hill, KS, USA
Posts: 12,684
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Yes, the motor in a 4wd is set further back. Probably partly for better weight transfer and partly to give a slightly longer front driveshaft to reduce it's angle.
__________________
1970 Blazer with a 400 sbc and 4" lift
1980 Pontiac Trans Am, 455 Oldsmobile
2012 Kawasaki Concours 14
Yukon Jack is offline   Reply With Quote
Old 04-07-2008, 07:16 PM   #31
Virginia72SWB4X4
Registered User
 
Join Date: Jan 2004
Location: Fredericksburg, Virginia
Posts: 144
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Thanks Yukon. I was always puzzled why the modifications were necessary.

Gary
Virginia72SWB4X4 is offline   Reply With Quote
Old 04-08-2008, 04:17 AM   #32
FormerMember
Account Suspended
 
Join Date: Feb 2004
Posts: 3,051
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Bigger block (Cadillac!) in my former C now K40:


I used the DIY4X engine crossmember and made the engine saddles.

Squeezes in there:


Should be fun with the dual turbos...

Last edited by FormerMember; 04-02-2009 at 03:01 PM.
FormerMember is offline   Reply With Quote
Old 04-26-2008, 05:04 PM   #33
hellrazrblade
Purple People Eater
 
hellrazrblade's Avatar
 
Join Date: Dec 2006
Location: Houston
Posts: 53
Re: 67-72 BigBlock 4x4s! Pos pics info here.

'71 Blazer w/ 3" body lift and a 396 ('69 Chevelle). It has plenty of room, and I even put in a huge Mallory HEI with no clearance issues. The hood's straight now, by the way.
Attached Images
  
__________________
1971 K5 Blazer 396ci/TH400/NP205/Dana 44/GM 12 Bolt/38" TSLs
2004 Chevy 1500 4X2 X-Cab 327ci
hellrazrblade is offline   Reply With Quote
Old 04-26-2008, 09:06 PM   #34
Yukon Jack
Post Whore
 
Yukon Jack's Avatar
 
Join Date: Feb 2000
Location: Rose Hill, KS, USA
Posts: 12,684
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Can you shoot a couple pics of your firewall in the valve cover area?

What engine crossmember are you using and how is your oil pan clearance?

Good looking K5 btw.
__________________
1970 Blazer with a 400 sbc and 4" lift
1980 Pontiac Trans Am, 455 Oldsmobile
2012 Kawasaki Concours 14
Yukon Jack is offline   Reply With Quote
Old 05-10-2008, 05:39 AM   #35
CDA 455
MidlifeCrisisUnderWay
 
CDA 455's Avatar
 
Join Date: Jul 2007
Location: 43rd State
Posts: 139
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Here's a sneak-peek at mine and the rig the motor is going into:
Attached Images
     
__________________
DIY4X

1972 CST Blazer <---sold
CDA 455 is offline   Reply With Quote
Old 05-10-2008, 03:03 PM   #36
FormerMember
Account Suspended
 
Join Date: Feb 2004
Posts: 3,051
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Quote:
Originally Posted by CDA 455 View Post
Here's a sneak-peek at mine and the rig the motor is going into:
I dig the Michelin XML's. I've been looking for a set.
FormerMember is offline   Reply With Quote
Old 05-10-2008, 05:21 PM   #37
Yukon Jack
Post Whore
 
Yukon Jack's Avatar
 
Join Date: Feb 2000
Location: Rose Hill, KS, USA
Posts: 12,684
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Tasty looking motor!!!
__________________
1970 Blazer with a 400 sbc and 4" lift
1980 Pontiac Trans Am, 455 Oldsmobile
2012 Kawasaki Concours 14
Yukon Jack is offline   Reply With Quote
Old 05-11-2008, 04:04 AM   #38
Burt4x4
Registered User
 
Burt4x4's Avatar
 
Join Date: Feb 2000
Location: Modesto, CA
Posts: 1,842
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Hell Ya CDA that will be fun to drive!
__________________
1972 K5 MPFI454/Sm465/Np205/D60/14FFd/Re-Centerd H1s w/Swamper Iroks
Burt4x4 is offline   Reply With Quote
Old 05-11-2008, 07:34 AM   #39
CDA 455
MidlifeCrisisUnderWay
 
CDA 455's Avatar
 
Join Date: Jul 2007
Location: 43rd State
Posts: 139
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Quote:
Originally Posted by grendel View Post
I dig the Michelin XML's. I've been looking for a set.

Thanks!


I also have a set of Michelin XML 325/85R16's (39X13) as well.
__________________
DIY4X

1972 CST Blazer <---sold
CDA 455 is offline   Reply With Quote
Old 05-11-2008, 07:45 AM   #40
CDA 455
MidlifeCrisisUnderWay
 
CDA 455's Avatar
 
Join Date: Jul 2007
Location: 43rd State
Posts: 139
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Quote:
Originally Posted by Yukon Jack View Post
Tasty looking motor!!!
Quote:
Originally Posted by Burt4x4 View Post
Hell Ya CDA that will be fun to drive!


Thanks guys!


Basically the only thing left to get is a fuel tank and fuel system.

I'm thinking a late model Blazer tank and a 8.1 Vortec fuel system set up.

I need baffles in the tank and a high pressure pump (40-70 PSI).
__________________
DIY4X

1972 CST Blazer <---sold
CDA 455 is offline   Reply With Quote
Old 05-11-2008, 07:48 AM   #41
FormerMember
Account Suspended
 
Join Date: Feb 2004
Posts: 3,051
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Quote:
Originally Posted by CDA 455 View Post
Thanks!


I also have a set of Michelin XML 325/85R16's (39X13) as well.
Where are you getting them? I want a set for my tow rig.
FormerMember is offline   Reply With Quote
Old 05-11-2008, 08:33 AM   #42
CDA 455
MidlifeCrisisUnderWay
 
CDA 455's Avatar
 
Join Date: Jul 2007
Location: 43rd State
Posts: 139
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Quote:
Originally Posted by grendel View Post
Where are you getting them? I want a set for my tow rig.


I bought them off of eBay the last couple of years.

From a place at the International Border down in San Diego.


The skinny set I bought two years ago and the wider set I bought last year.
__________________
DIY4X

1972 CST Blazer <---sold
CDA 455 is offline   Reply With Quote
Old 05-11-2008, 08:37 AM   #43
CDA 455
MidlifeCrisisUnderWay
 
CDA 455's Avatar
 
Join Date: Jul 2007
Location: 43rd State
Posts: 139
Re: 67-72 BigBlock 4x4s! Pos pics info here.

When I order my T-case I'll use my TH350/NP205 in the mean time.


I'm looking at the Atlas 4SP or the StaK 5.44.
__________________
DIY4X

1972 CST Blazer <---sold
CDA 455 is offline   Reply With Quote
Old 05-11-2008, 02:42 PM   #44
FormerMember
Account Suspended
 
Join Date: Feb 2004
Posts: 3,051
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Quote:
Originally Posted by CDA 455 View Post
When I order my T-case I'll use my TH350/NP205 in the mean time.


I'm looking at the Atlas 4SP or the StaK 5.44.
When you go Stak, you never go back.

Let me know if you can find more of the wider XML.s

Last edited by FormerMember; 04-02-2009 at 03:01 PM.
FormerMember is offline   Reply With Quote
Old 05-11-2008, 04:34 PM   #45
CDA 455
MidlifeCrisisUnderWay
 
CDA 455's Avatar
 
Join Date: Jul 2007
Location: 43rd State
Posts: 139
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Quote:
Originally Posted by grendel View Post
When you go Stak, you never go back.

Let me know if you can find more of the wider XML.s



Which StaK T-case is that?
__________________
DIY4X

1972 CST Blazer <---sold
CDA 455 is offline   Reply With Quote
Old 05-11-2008, 04:57 PM   #46
FormerMember
Account Suspended
 
Join Date: Feb 2004
Posts: 3,051
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Quote:
Originally Posted by CDA 455 View Post
Which StaK T-case is that?
4 speed. It's in my Jeep.

http://www.pirate4x4.com/forum/showthread.php?t=489888

It's on topic, too... it's a BBC in a 4x4 :p

Last edited by FormerMember; 05-11-2008 at 04:59 PM.
FormerMember is offline   Reply With Quote
Old 05-11-2008, 09:31 PM   #47
CDA 455
MidlifeCrisisUnderWay
 
CDA 455's Avatar
 
Join Date: Jul 2007
Location: 43rd State
Posts: 139
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Quote:
Originally Posted by grendel View Post
4 speed. It's in my Jeep.

http://www.pirate4x4.com/forum/showthread.php?t=489888

It's on topic, too... it's a BBC in a 4x4 :p


You mean 3 speed ?!



Why'd you pick StaK over Atlas?

The only reason I'm thinking of getting a Stak is because Atlas is going through major changes in their gear-cutting. They're bringing it in-house and I'm concerned about QA since they're starting from scratch.
__________________
DIY4X

1972 CST Blazer <---sold
CDA 455 is offline   Reply With Quote
Old 05-11-2008, 11:24 PM   #48
FormerMember
Account Suspended
 
Join Date: Feb 2004
Posts: 3,051
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Quote:
Originally Posted by CDA 455 View Post
You mean 3 speed ?!



Why'd you pick StaK over Atlas?

The only reason I'm thinking of getting a Stak is because Atlas is going through major changes in their gear-cutting. They're bringing it in-house and I'm concerned about QA since they're starting from scratch.
The Atlas isn't rated for our trucks. Talk to Vic. I have too much HP and too heavy a rig. Atlas = Dana 300 based t-case. Stak all new engineering.
FormerMember is offline   Reply With Quote
Old 05-12-2008, 01:31 AM   #49
CDA 455
MidlifeCrisisUnderWay
 
CDA 455's Avatar
 
Join Date: Jul 2007
Location: 43rd State
Posts: 139
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Quote:
Originally Posted by grendel View Post
The Atlas isn't rated for our trucks. Talk to Vic. I have too much HP and too heavy a rig. Atlas = Dana 300 based t-case. Stak all new engineering.

Really ?!!

On their website they claim they can handle tons of torque. My rig will weigh approx. 5500LBS to 6000LBS easily (Fully loaded for a trail-run). And the Ram Jet will be doing 565FT/LBS of torque (At the crank)!


This is a first for me: Atlas = Dana 300 based t-case.


And StaK is all new engineering from the ground up?

I'm eye-balling the StaK 5.44/3.05:1 model.



BTW; Who's Vic ?!
__________________
DIY4X

1972 CST Blazer <---sold
CDA 455 is offline   Reply With Quote
Old 05-12-2008, 01:35 AM   #50
FormerMember
Account Suspended
 
Join Date: Feb 2004
Posts: 3,051
Re: 67-72 BigBlock 4x4s! Pos pics info here.

Quote:
Originally Posted by CDA 455 View Post
Really ?!!

On their website they claim they can handle tons of torque. My rig will weigh approx. 5500LBS to 6000LBS easily (Fully loaded for a trail-run). And the Ram Jet will be doing 565FT/LBS of torque (At the crank)!


This is a first for me: Atlas = Dana 300 based t-case.


And StaK is all new engineering from the ground up?

I'm eye-balling the StaK 5.44/3.05:1 model.



BTW; Who's Vic ?!
Vic is one of the original owners of Atlas

When they released the Atlas, it was SWB only (Jeep, Bronco, Land Cruiser, etc). You can find pictures all over the place. It's one of the original marketing points for the NP205 derived Lomax by Novak.

Stak is it's own design, not based off a production t-case. They were also first to market with a tough 3 speed t-case, they also have proto-type four speeds out... same case.
FormerMember is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 07:38 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com