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

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69 swb - in the process of being torn down and born again!

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.

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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

They came with big blocks and 4 sppeds, big blocks and TH 400's, so all you need is the big block pieces.

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'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

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



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69 swb - in the process of being torn down and born again!

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)

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'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

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.


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Lutz, Fl
My Team Website
The Heavy Chevy Website
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• 72 Cheyenne 10 LWB GM 12-bolt 3.08 w/ Auburn Posi
  91 454 Edel Intake 850 cfm carb Comp Cam 268/.500 Hedman Headers Dual 3'' Exhaust
• 71 Cheyenne 20 4x4 Fact. A/C PS PB Tilt Currently in the works...
  Put it to the floor...

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

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ZZ502 coral Ice pink

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.