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| Non Pontiac Motors in Pontiacs includes factory 403,305,350 Chevy, Buick V6, Also Pontiac Motors in non-Pontiacs! |
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#1
06-19-2004, 07:59 AM
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Just had a professionally "Built" 4 speed auto out of a Grand National installed to replace my old 2 speed...Who Knew??
Same drive shaft, same column shift,  but a REAL Low, a Passing Gear and an Overdrive too.BOP double bolt pattern on bell housing makes it sort of universally GM friendly, I got a lock-up torque converter, throttle cable initiates passing gear kick down, "Sweet." 2nd gear chirp from my 1 Bbl. 6 cylinder!!  Not Cheap, but it drives like a different car now!!
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#2
06-19-2004, 07:59 AM
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Just had a professionally "Built" 4 speed auto out of a Grand National installed to replace my old 2 speed...Who Knew??
Same drive shaft, same column shift, but a REAL Low, a Passing Gear and an Overdrive too.BOP double bolt pattern on bell housing makes it sort of universally GM friendly, I got a lock-up torque converter, throttle cable initiates passing gear kick down, "Sweet." 2nd gear chirp from my 1 Bbl. 6 cylinder!! Not Cheap, but it drives like a different car now!!
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I'll be back... |
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#3
06-19-2004, 12:11 PM
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______________________________ 1968 Firebird Coupe - 3665 lbs. 350 HO Long Branch Manifolds TH350 3.23 open BP axle PS, PDB and Deluxe interior GPE Starter ... Small body HEI ... 2.5" Pypes w/X-pipe ... Ruggles Qjet 14.1 @ 99.1 |
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#4
06-23-2004, 09:28 PM
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word of wisdom make sure u'all have the cable adjusted right or u'all burn up the trans as it controls everything
DRIVE IT LIKE U'ALL STOLE IT!
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connman |
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#5
06-24-2004, 03:54 PM
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I read that somewhere else, too.
I ain't touching the cable myself, I got a 12 month warranty, I'm going to put as many test miles on it as I can.
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#6
07-15-2004, 05:32 PM
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Got one in my 78 T/A from Bowtie Overdrives. Works a treat!
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#7
07-23-2004, 01:43 PM
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When swapping from a TH400 you only need to swap the yoke and move the crossmember back a bit. I have them off and on in my 70 GTO, the 455 kills them off pretty easily in stock form. Havent gotten one built yet, and mine always seem to have issues when I build them. So I keep a spare 400 handy..
love that OD tho, 1800 rpm @ 80 mph!! |
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#8
07-23-2004, 02:31 PM
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Mine was redone locally by a guy that races Grand Nationals, he only uses GN, or SC Grand Prix 200 r4's and says mine will hold up to around 500HP.
When I get my fuel injected V8 I might strain it but for now it's behind an OHC 6, so I don't think I can hurt it. That's the most direct bolt up to replace my 1967 2 speed. Cruises at around 1900 to 2000 @ 80 MPH.
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