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Old 09-05-2017, 12:20 PM   #1
chastain90
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Big Block Help

I am almost finished with my big block swap in my 72 blazer. I am having issues with the clutch linkage and trying to find headers that will clear it with minor modifications. Surely someone has done this swap with a manual trans. Any help on how to modify the Z bar or headers will be appreciated. I have done research and haven't found any solutions yet. I have looked at tons of headers but haven't found anything that would bolt right in. Thanks
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Old 09-05-2017, 10:10 PM   #2
RustyBucket
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Re: Big Block Help

Convert to a hydraulic clutch & delete the Z bar.
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Old 09-05-2017, 10:15 PM   #3
chastain90
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Re: Big Block Help

I'd like to but I can't drop $700 on a kit to do that.
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Old 09-07-2017, 10:15 AM   #4
Tom Vogel
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Re: Big Block Help

I had custom headers made. Not cheap. $700 for that clutch might indeed be your cheapest route.
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Old 09-08-2017, 10:17 PM   #5
YoungPup1977
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Re: Big Block Help

be brave and replace the manual trans with a 700r4...who wants to push in a clutch all day long....
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Old 09-10-2017, 01:29 PM   #6
kwmech
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Re: Big Block Help

Quote:
Originally Posted by YoungPup1977 View Post
be brave and replace the manual trans with a 700r4...who wants to push in a clutch all day long....
700s suck behind a small block, 454 is even worse
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Old 09-10-2017, 08:35 PM   #7
YoungPup1977
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Re: Big Block Help

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Originally Posted by kwmech View Post
700s suck behind a small block, 454 is even worse
I disagree but everyone should have their opinions.
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Old 09-20-2017, 08:50 AM   #8
Mike C
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Re: Big Block Help

GM went to hydraulic clutch by '85 in the big block square bodies. I have an '85 C30 and '86 K30 that are both setup that way. Find a GM bellhousing and buy OEM parts for the swap. Be on you to fab up a clutch master mount and connect it to the clutch pedals.

Big block swaps in 67-72 4x4 trucks are just a PITA. More so with manual trans.
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Old 09-20-2017, 03:55 PM   #9
scotto0609
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Re: Big Block Help

I kinda remember from many moons ago using hooker super comp headers on my bb manual trans. 70 burb. hope that helps.
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