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Old 10-19-2013, 03:04 PM   #1
scott-wisc
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i6 to SB clutch linkage

I replaced my 250 with a GM 350 crate. New motor is in the correct V8 location. The original 3 speed is staying. I have Hedman Headers.


In the photo, the z bar on the top is from a 68 GMC 327, the bottom is my old one from the 250. New one is 1" too long. the old one seems just a hair too long. the old one seems like it will rub the header. Anyone know what's going on here?
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Old 10-19-2013, 03:45 PM   #2
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Re: i6 to SB clutch linkage

If I removed the riveted bracket on the frame and reconfigured it mount to the side instead of the top, it looks like I'd have tons of header clearance.
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Old 10-19-2013, 04:40 PM   #3
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Re: i6 to SB clutch linkage

Mine use to hit the header too I just bent the lower arm on the z bar out so it would not hit the original z bar looks like the right one.
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Old 11-02-2013, 11:15 AM   #4
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Re: i6 to SB clutch linkage

So I took the bracket off, flipped it around, added more 3/16 metal, drilled new holes, and problem solved.
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Old 11-02-2013, 11:44 AM   #5
68gmsee
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Re: i6 to SB clutch linkage

Good job! Could help someone else that may encounter the same problem doing a swap.

A little work and some ingenuity helps when working on these old trucks.
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68 GMC 250/3 speed Saginaw p/b p/s
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Old 11-02-2013, 11:49 AM   #6
70 stepside
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Re: i6 to SB clutch linkage

Question how is the 3 speed keeping up with the small block? I'm doing the upgrade coming up and friends think I'm nuts to keep the 3 speed sag with sb
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Old 11-02-2013, 12:20 PM   #7
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Re: i6 to SB clutch linkage

Quote:
Originally Posted by 70 stepside View Post
Question how is the 3 speed keeping up with the small block? I'm doing the upgrade coming up and friends think I'm nuts to keep the 3 speed sag with sb
Most of these trucks had Saginaw and or Muncies and for normal use they can handle V8's well. I remember guys drag racing completely stock small blocks with these three speeds.
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68 GMC 250/3 speed Saginaw p/b p/s
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06 Trailblazer
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Old 11-03-2013, 06:51 AM   #8
scott-wisc
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Re: i6 to SB clutch linkage

I haven't driven it yet, but I plan on treating it like a red headed step child. As soon as something breaks, I'll post it!
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Old 11-03-2013, 08:35 AM   #9
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Re: i6 to SB clutch linkage

Hahaha....thx keep us posted. When is it going to see some asphalt?
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