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05-13-2002, 05:30 PM
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#1 |
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Careful, they attack...
Join Date: Aug 2001
Location: Waterford, MI, USA
Posts: 1,107
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Hard to install a big block?
I had an idea to put in a big block, like a 427 or 454. Is it hard to get one in? I have a 69 1/2 ton, SWB, stepside with a th-350. I know I would need another trans, but I am more worried about getting the engine in there. Also what about a 4-spd. Could I even get the clutch linkage around the engine. I know some of you guys have big blocks, so I was wondering if you could give some tips. Thanks
jmanz69 ------------------ 69 swb - in the process of being torn down and born again! |
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05-13-2002, 05:36 PM
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#2 |
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now thats a true COON DOG
 Join Date: Nov 2000
Location: Franconia, NH
Posts: 1,977
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Not hard at all! I did this 2 winters ago to my 71 swb stepside (2wd). I also have a 4-speed hooked up to it........... getting that in place was a royal B*tch. to put the 4-speed in you are going to need a 4-speed X-member out of a BB 4-speed truck. If you have anymore questions feel free to e-mail me.
------------------ 71 SWB Stepside, was a 250, now is a 402 Big Block with 4 speed and 3.73's 72 LWB 4x4 350 4-speed 3.08's posi wearing army olive drab green (SOLD!) 68 BURB 50TH LOOKALIKE with built 350 4-speed 4.11's and posi
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current project 67  402BB stout th350 3.08's with a locker. Plan on tubs 18.5's out back! (thanks Burnsman!)71 SWB Stepside, was a 250, now is a 402 Big Block with 4 speed and 3.73's ( was crushed by a tree, bed sold, motor pulled)  was my first truck!... oh well...72 LWB 4x4 350 4-speed 3.08's posi wearing army olive drab green (SOLD!) 68 BURB 50TH LOOKALIKE work in progress, soon to have 250-I6 with a 3-speed on the tree 4.11's and posi ( currently sitting in back yard tarped awaiting time, $$$, and lots of love!) 67 1 TON- work truck 396 sm 420 4-speed, flat bed 4.57 gears "big red" (my first landscape truck, very rusty and crusty! but still gets the job done when needed!) |
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05-13-2002, 09:13 PM
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#3 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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They came with big blocks and 4 sppeds, big blocks and TH 400's, so all you need is the big block pieces.
------------------ '69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it. FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite. E-mail longhornmail@yahoo.com My name is Andy...not Randy...I'm in Ohio...Not Illinois...close enough? Columbus Ohio |
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05-13-2002, 09:29 PM
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#4 |
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Careful, they attack...
Join Date: Aug 2001
Location: Waterford, MI, USA
Posts: 1,107
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I have the low hump cab, will that cause a problem? I need a new one anyway so I could get a high hump. Also, I wsa thinking more along the line of a Muncie 4-spd. Would that make a difference? Thanks
------------------ 69 swb - in the process of being torn down and born again! |
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05-13-2002, 09:52 PM
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#5 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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I don't know 4 speeds, but if it is out of a car, you will probably have shifter location problems.
As far as the high/low hump issue, you will need the high hump, esp with both a big block AND a 4 speed. If you decide to fix your cab, all you need to do is hack out the old one, and bolt in the high hump. (it's a bolt in piece with the high hump) ------------------ '69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it. FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite. E-mail longhornmail@yahoo.com My name is Andy...not Randy...I'm in Ohio...Not Illinois...close enough? Columbus Ohio |
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05-13-2002, 10:19 PM
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#6 |
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Slowly getting CRSS...
Join Date: Jul 2001
Location: Lutz, Florida
Posts: 656
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ive got a 454 backed by a th350 in mine, no major probs what so ever
had to move everything back 2'' column shifter linkage and trans x-member. i ended up getting the not 72 bb mounts so i had to drill new holes. w/ mechanical fan and a 4 core radiator i have about 1/2'' between em. had to notch the frame just a tad to get the long tube headman headers clear sufficiently. ------------------ Lutz, Fl My Team Website The Heavy Chevy Website ------------------
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-Nic Lutz, Fl My Team Website The Heavy Chevy Website ------------------
There is No replacement for Displacement... "If everything seems under control, you're just not going fast enough." - Mario Andretti |
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05-13-2002, 10:43 PM
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#7 |
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Registered User
Join Date: Mar 2002
Location: Calgary,Alberta,Canada
Posts: 12
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I put a 502 in my 71 just bought the towers and mts from the general and she droped right in and I have the stock TH350 know problems yet and it's going on 3 years now
------------------ ZZ502 coral Ice pink
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ZZ502 Buckets 3:73 posi coral Ick Pink |
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05-13-2002, 10:56 PM
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#8 |
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Registered User
Join Date: Dec 2000
Location: Ringtown,PA
Posts: 555
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you don't need the high hump cab with a car four speed, i have a 402 and a muncie in my 68. i used the big block motor mounts, and the bell housing mounts, that's all.
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68 chevy 406 small block, budget drag racer, new best e.t 11.91 @112 67 nova numbers matching 327 4 speed 13.6 @ 102mph 70 longhorn c-30 402/4 speed 70 c-10 swb 402, muncie 4 speed 94 s-10 350/th350 3:73 posi 71 c-20 402/th400 towrig for racetruck. 72 4wd lifted on 35's 72 350/3 speed winter beater |
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