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196 swap for v6? |
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tyrodtom 
AMC Addicted 
Joined: Sep/14/2007 Location: Virginia Status: Offline Points: 2814 |
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 Posted: May/01/2012 at 3:53pm |
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The origional GM v6s were the odd fire, their cranks were made as if you just cut off one of the end rodjournals off a V8, it had a uneven firing order.
To get a even firing order in a 90 degree V6, you have to split the rod journals, which makes for a weak crank, and still doesn't get rid of all the harmonics. I though GM did that in about 78. One of my friends in the USAF had a 65 Olds F-85 with the V6, that thing would romp at highway speed, nobody cared if it had a rough idle. But I got a 76 Olds Starfire for my wife, with the V6, but by then Olds V6 was the same as the Buick V6, Good thing I didn't have to drive it much, because that's the worse car i've ever owned, I rate it even below my Yugo.
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66 American SW, 66 American 2dr, 82 J10, 70 Hornet, Pound, Va.
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farna
Supporter of TheAMCForum 
Moderator Lost Dealership Project Joined: Jul/08/2007 Location: United States Status: Offline Points: 7103 |
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Posted: May/01/2012 at 5:30pm |
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It was the even crank then. That Sunfire was either a 77 or 78 model. According to Wikipedia: "In 1977, Buick devised an innovative "split-pin crankshaft" redesign of
the crankshaft, flywheel, and distributor which greatly alleviated the
problem, creating a new even-firing version of the engine." (http://en.wikipedia.org/wiki/Buick_V6#231). I still think the thing was rough, had soft engine mounts. Maybe it was an early 77 with the odd fire model in it?
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Frank Swygert
American Motors Cars Magazine www.amc-mag.com |
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Scott McElheney
AMC Apprentice 
Joined: Jul/08/2007 Location: Monticello, GA Status: Offline Points: 216 |
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Posted: May/01/2012 at 10:51pm |
Could be. From the Turbo Regal website: In 1977, Buick redesigned the firing order to make it a smoother running engine by revising the crank throws. This was a mid-year change, so some odd-fire and some even-fire V6s were made during 1977. The new even-fire engine still retained the same bore spacing as the odd-fire version, so the bores were no longer centered over the rods and the engine had to be under balanced and soft motor mounts were used. The balancing took care of the vertical component of the vibrations and the motor mounts took care of the horizontal component. As for the original topic, I'd keep it all AMC and put in a newer straight 6. I think one of the worst mistakes the US automakers have made in the last 20-25 years has been to abandon straight 6 engines, especially for trucks. I liked my '92 Ford F150 with the old 300 I-6 much better than my current '06 F150 with the 4-point-whatever liter V-6.
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Scott Mc.
'67 Amboat DPL hardtop '67 Mercury Parklane 'vert w/410 & factory 4-speed (Newest addition to the fleet!) '70 IH 1200D Travelette '66 IH Scout 800 '29 Ford Model A |
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Ken Doyle
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Joined: Jun/19/2010 Location: Haledon NJ Status: Offline Points: 118 |
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Posted: May/03/2012 at 5:34pm |
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I had a '63 660 with a cast-iron OHV 195.6 automatic and I found it to be downright peppy with excellent economy. It also had no problem at highway speeds. My 1960 Rambler Six was the same way, sure surprised unsuspecting passengers when I stomped it into the carpet. As long as you torque the head and adjust the valves once in a while, I found those engines to be bulletproof and well mannered.
Ken D.
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farna wrote: