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11-09-2010, 09:45 AM | #1 |
Senior Member
Join Date: Feb 2001
Location: Killen, Alabama USA
Posts: 3,619
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SBC to BBC clutch differences? Z-bar??
I'm thinking of going from small block to big block in my 4 speed 1 ton. Are there any differences in the engine pivot ball, Z-bar or other clutch related parts? Thanks.
Joshua
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72 Cheyenne Super swb. Factory 402/400,tach,posi,AM/FM, A/C. Adding cruise, 8-track 72 Cheyenne Super swb. 350/350 A/C, bucket seats 72 Cheyenne swb. Factory 402/400, tilt, posi, A/C 72 Cheyenne Super K-10. 350/4 spd., posi. 72 Suburban 350/350 tilt, tach, AM/FM, A/C, luggage rack 72 GMC Sierra lwb. 350/350, A/C. medium green/olive interior |
11-09-2010, 10:53 AM | #2 |
Junior Member
Join Date: Dec 2006
Location: Southeast Missouri
Posts: 2,436
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Re: SBC to BBC clutch differences? Z-bar??
My '71 C-10 came with a 350 and granny type 4 speed. When we put the '73 454 in it I bought a pivot ball for it from Napa/Auto Tire and Parts #65-1197 for a little over $10. The one for the 454 screws in the block.
We used the rest of the clutch linkage stuff from the 350 set-up. I have heard some have had to shorten the Z-bar, but in my case we did not.
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'67 Chevy C-20 short stepper - build complete, 454/SM-465. '75 C-30 Single Cab DRW-350 small block/NP-435. '77 GMC-6500 Dump Truck, 427 Tall Deck. '92 GMC K-3500 Duallie, 454/4L80E. |
11-09-2010, 09:26 PM | #3 |
Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,724
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Re: SBC to BBC clutch differences? Z-bar??
You can use most of the small block parts if you use the small block motor mounts and stands. If you use big block mounts and stands you need the bracket for the z-bar, the z-bar and the pushrod through the firewall.
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44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
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