Big Block Z-Bar .... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Bishops Trucks · 03-03-2006, 07:50 AM

Does anyone have the complete z-bar assembly for a big block '71 ? I have been looking for a long time with no luck.

**ScottH** · 03-03-2006, 11:03 AM

Not to highjack the thread, but is there a difference between SBC & BBC z-bars?

72armyswbtruck · 03-03-2006, 02:12 PM

What is one and what does it look like? I might have one if you can show me a picture or explain to me where it is at.

sakohntr · 03-03-2006, 02:19 PM

There is no difference.....

Bishops Trucks · 03-03-2006, 08:05 PM

Billsbowtie has one for a small block but said it will not fit a big block. Thats the reason I started this thread. If there is no differance I will take what anybody has. Just let me know... 72army, look in parts for sale, billsbowtie has a picture of one. If you have one I will take it.

fast_dev · 03-03-2006, 09:34 PM

im told they are not different, but if you don't change the bracket on the frame it won't work. i just did a big block swap with a stick. i used a 6 cyl z-bar (had to cut a little off the end, has no effect on function) with the 6 cyl push rod from the pedal (had to file the back a little to clear the header, can't even see it on the truck) and you can modify the pivot ball bracket by moving the ball. i'll see if i can get pics for you. a correct big block pivot ball is pretty hard to find. Devin

Bishops Trucks · 03-03-2006, 10:04 PM

Thanks fast dev, I would welcome pictures if you can get some. When you say change the bracket on the frame, do you mean move it back or swap with a differant year ? Appreciate your input.
Thanks, Jim

**ScottH** · 03-03-2006, 10:34 PM

I'm going to do this as well later this year, would also appreciate pics or other helpful insights.

Thanks.

fast_dev · 03-03-2006, 11:37 PM

sorry for the crappy pics, i'll get better ones, i'll also take some pics of the factory big block stick truck i have but that will have to be over the weekend. for now heres what i got. pic 1 is of the modified pushrod. pic 2 is the modified pivot ball. this is from a small block truck, grind the weld off the back of the ball then you will have to grind on the bracket to get it to fit on the big block, then bolt it to the motor and put the z-bar in. mark your bracket and drill a new hole for the ball and weld it in from the backside. this is using the correct big block towers also. Dev.

Bishops Trucks · 03-04-2006, 07:48 AM

Thanks Dev,
Pictures are worth a thousand words.

03-03-2006, 07:50 AM	#1
Bishops Trucks KEEP ON TRUCKIN' Join Date: Jun 2005 Location: Sterling, Va. Posts: 5,731	Big Block Z-Bar .... Does anyone have the complete z-bar assembly for a big block '71 ? I have been looking for a long time with no luck. __________________ JIM '97 GMC Sierra K1500 '95 Chevy Silverado C1500 '71 Cheyenne Z71 / LT1 & 4-Speed SWB K/10 Father/Son Project http://www.youtube.com/watch?v=4l689JKXPnA http://67-72chevytrucks.com/vboard/payments.php "LIVIN' FREE FOREVER"

03-03-2006, 11:03 AM	#2
ScottH Senior Member Join Date: Sep 2002 Location: Hampstead, NC Posts: 8,187	Re: Big Block Z-Bar .... Not to highjack the thread, but is there a difference between SBC & BBC z-bars?

03-03-2006, 02:12 PM	#3
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,034	Re: Big Block Z-Bar .... What is one and what does it look like? I might have one if you can show me a picture or explain to me where it is at. __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

03-03-2006, 02:19 PM	#4
sakohntr Registered User Join Date: Mar 2002 Location: Floodwood Minnesota Posts: 1,057	Re: Big Block Z-Bar .... There is no difference..... __________________ 1967 K30 Napco 292/SM420 original paint 30k miles 1968 K60 Napco 396/5spd. dbl frame 52" michelins 1969 K10 SWB GMC 454/4spd 6" 35's posi,hooks 1972 C30 longhorn,BB/AT,A/C,Tilt,Toolbox,lokr 1987 K20 Chevrolet Suburban. 6" lift. 5.7L/TH400 1979 K60 GMC Coleman 4x4, 427/Allison.

03-03-2006, 08:05 PM	#5
Bishops Trucks KEEP ON TRUCKIN' Join Date: Jun 2005 Location: Sterling, Va. Posts: 5,731	Re: Big Block Z-Bar .... Billsbowtie has one for a small block but said it will not fit a big block. Thats the reason I started this thread. If there is no differance I will take what anybody has. Just let me know... 72army, look in parts for sale, billsbowtie has a picture of one. If you have one I will take it. __________________ JIM '97 GMC Sierra K1500 '95 Chevy Silverado C1500 '71 Cheyenne Z71 / LT1 & 4-Speed SWB K/10 Father/Son Project http://www.youtube.com/watch?v=4l689JKXPnA http://67-72chevytrucks.com/vboard/payments.php "LIVIN' FREE FOREVER" Last edited by Bishops Trucks; 03-03-2006 at 08:09 PM.

03-03-2006, 09:34 PM	#6
fast_dev Registered User Join Date: Dec 2000 Location: Ringtown,PA Posts: 555	Re: Big Block Z-Bar .... im told they are not different, but if you don't change the bracket on the frame it won't work. i just did a big block swap with a stick. i used a 6 cyl z-bar (had to cut a little off the end, has no effect on function) with the 6 cyl push rod from the pedal (had to file the back a little to clear the header, can't even see it on the truck) and you can modify the pivot ball bracket by moving the ball. i'll see if i can get pics for you. a correct big block pivot ball is pretty hard to find. Devin __________________ 68 chevy 406 small block, budget drag racer, new best e.t 11.91 @112 67 nova numbers matching 327 4 speed 13.6 @ 102mph 70 longhorn c-30 402/4 speed 70 c-10 swb 402, muncie 4 speed 94 s-10 350/th350 3:73 posi 71 c-20 402/th400 towrig for racetruck. 72 4wd lifted on 35's 72 350/3 speed winter beater

03-03-2006, 10:04 PM	#7
Bishops Trucks KEEP ON TRUCKIN' Join Date: Jun 2005 Location: Sterling, Va. Posts: 5,731	Re: Big Block Z-Bar .... Thanks fast dev, I would welcome pictures if you can get some. When you say change the bracket on the frame, do you mean move it back or swap with a differant year ? Appreciate your input. Thanks, Jim __________________ JIM '97 GMC Sierra K1500 '95 Chevy Silverado C1500 '71 Cheyenne Z71 / LT1 & 4-Speed SWB K/10 Father/Son Project http://www.youtube.com/watch?v=4l689JKXPnA http://67-72chevytrucks.com/vboard/payments.php "LIVIN' FREE FOREVER"

03-03-2006, 10:34 PM	#8
ScottH Senior Member Join Date: Sep 2002 Location: Hampstead, NC Posts: 8,187	Re: Big Block Z-Bar .... I'm going to do this as well later this year, would also appreciate pics or other helpful insights. Thanks.

03-03-2006, 11:37 PM	#9
fast_dev Registered User Join Date: Dec 2000 Location: Ringtown,PA Posts: 555	Re: Big Block Z-Bar .... sorry for the crappy pics, i'll get better ones, i'll also take some pics of the factory big block stick truck i have but that will have to be over the weekend. for now heres what i got. pic 1 is of the modified pushrod. pic 2 is the modified pivot ball. this is from a small block truck, grind the weld off the back of the ball then you will have to grind on the bracket to get it to fit on the big block, then bolt it to the motor and put the z-bar in. mark your bracket and drill a new hole for the ball and weld it in from the backside. this is using the correct big block towers also. Dev. Attached Images __________________ 68 chevy 406 small block, budget drag racer, new best e.t 11.91 @112 67 nova numbers matching 327 4 speed 13.6 @ 102mph 70 longhorn c-30 402/4 speed 70 c-10 swb 402, muncie 4 speed 94 s-10 350/th350 3:73 posi 71 c-20 402/th400 towrig for racetruck. 72 4wd lifted on 35's 72 350/3 speed winter beater

03-04-2006, 07:48 AM	#10
Bishops Trucks KEEP ON TRUCKIN' Join Date: Jun 2005 Location: Sterling, Va. Posts: 5,731	Re: Big Block Z-Bar .... Thanks Dev, Pictures are worth a thousand words. __________________ JIM '97 GMC Sierra K1500 '95 Chevy Silverado C1500 '71 Cheyenne Z71 / LT1 & 4-Speed SWB K/10 Father/Son Project http://www.youtube.com/watch?v=4l689JKXPnA http://67-72chevytrucks.com/vboard/payments.php "LIVIN' FREE FOREVER"

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