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#1 |
Registered User
Join Date: Dec 2018
Location: Maple Park, IL
Posts: 15
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a close friend of mine has a 72 3/4 ton 4x4 and has purchased a new 632 bbc that he will be putting in his truck. What are some things he is going to need/rework to get this beast to fit. thanks
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#2 |
Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: anyone done a 632 BBC swap in a 72?
That's a tall deck motor, so about the only thing I can think of is booster to valve cover clearance. But it's not tight in stock form, but with tall covers to clear roller rockers plus the deck height... worth measuring.
Also exhaust has to be totally custom because the heads sit higher. Was the 596 really not enough? That's available in short block, bolt-in in place of a factory 402 ;-)
__________________
1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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#3 |
Registered User
Join Date: Dec 2018
Location: Maple Park, IL
Posts: 15
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Re: anyone done a 632 BBC swap in a 72?
ive been trying to find a hood for the truck because i know that it will not fit with the factory hood. been looking for the smallest cowl hood that is very suttle looking but havent had any luck. something that looks as close to stock as possible and it has to be steel not fiberglass...
also, ran into some clearance issues with the front of the engine and radiator. does anyone make a lopro pulley kit or something that will bring the front accessories in? this truck will retain a/c and all. or is pushing the radiator farther forward the only way? |
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#4 |
Senior Member
![]() Join Date: Oct 2009
Location: Godley, TX
Posts: 17,964
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Re: anyone done a 632 BBC swap in a 72?
Hmmmm.. My slo-poke 72 K20 has a piece o crap swap motor in it. Hmm... I wonderrrrrr what your buddy is gonna doooo... with his puny 'ol worthless 350?
![]() ![]() ![]() ![]() ![]() Good luck with that swap, sounds pretty ambitious. Is this for a monster truck or a stock-ish (otherwise) K20 with a hefty driveline? Curious what other mods and driveline are in store for the truck. |
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#5 |
Registered User
Join Date: Dec 2018
Location: Maple Park, IL
Posts: 15
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Re: anyone done a 632 BBC swap in a 72?
it is a factory 454 truck so that motor has been pulled already! its on 35" bfg all terrains with a 4 inch lift. I will post a picture of the truck.
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#6 |
Registered User
![]() Join Date: Jul 2015
Location: 2nd left past the stump on a dirt road.
Posts: 2,629
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Re: anyone done a 632 BBC swap in a 72?
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#7 |
Registered User
Join Date: Dec 2018
Location: Maple Park, IL
Posts: 15
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Re: anyone done a 632 BBC swap in a 72?
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#8 |
Registered User
Join Date: Dec 2018
Location: Maple Park, IL
Posts: 15
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Re: anyone done a 632 BBC swap in a 72?
here is the truck that the 632 is going in.
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#9 |
Registered User
![]() Join Date: Oct 2015
Location: Dallas Texas
Posts: 1,380
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Re: anyone done a 632 BBC swap in a 72?
Very nice looking truck. Nice looking shop as well.
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#10 |
Registered User
Join Date: Aug 2018
Location: Rochester Mi
Posts: 93
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Re: anyone done a 632 BBC swap in a 72?
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#11 |
Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,720
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Re: anyone done a 632 BBC swap in a 72?
That is a great looking truck. But there were no factory big block 4x4 trucks from 67-72 and the 454 wasn’t installed in a truck until 1973. If it had a big block installed at some point, the 632 will go in as well. Just be warned that exhaust is a PITA on a tall deck motor.
__________________
44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
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#12 | |
Registered User
Join Date: Dec 2018
Location: Maple Park, IL
Posts: 15
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Re: anyone done a 632 BBC swap in a 72?
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#13 | |
Registered User
Join Date: Dec 2018
Location: Maple Park, IL
Posts: 15
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Re: anyone done a 632 BBC swap in a 72?
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#14 | |
Senior Member
![]() Join Date: Oct 2009
Location: Godley, TX
Posts: 17,964
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Re: anyone done a 632 BBC swap in a 72?
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#15 |
Senior Member
![]() Join Date: Aug 2004
Location: Centennial, CO
Posts: 2,954
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Re: anyone done a 632 BBC swap in a 72?
Very nice looking truck!
The factory 2wd BBC trucks used the short water pump accessory drive. I think early Chevelles had the same parts. It is kind of tight but very do-able.
__________________
ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ |
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#16 |
Registered User
Join Date: Sep 2011
Location: Ark City, Kansas
Posts: 3,337
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Re: anyone done a 632 BBC swap in a 72?
LOL, I like the way you think!!!
A 632??? Why NOT, you only live once!!! |
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#17 |
Registered User
Join Date: Dec 2018
Location: Maple Park, IL
Posts: 15
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Re: anyone done a 632 BBC swap in a 72?
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#18 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,393
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Re: anyone done a 632 BBC swap in a 72?
I Think the 205 is up to the challenge if it’s in good condition. This one is going to be a beast! Beautiful truck
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Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne: 5” lift, 35’s, front dana 60 blah blah blah… http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB: 4” lift 33”s… in a million pieces http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's |
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#19 |
Registered User
Join Date: Feb 2010
Location: rochelle il.
Posts: 356
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Re: anyone done a 632 BBC swap in a 72?
I work in the Elburn area. I don't think I have ever seen that truck running around. There use to be a nice one on Ellithorpe rd but it was green and white. That is a beauty I would have remembered that one.
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#20 |
Registered User
Join Date: Dec 2018
Location: Maple Park, IL
Posts: 15
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Re: anyone done a 632 BBC swap in a 72?
It is not my truck, but thank you!! It is a close friend of mines truck and I wanted to share his build and get some help/input on a couple things on his truck! Merry Christmas!
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#21 |
Registered User
Join Date: Nov 2017
Location: Leeds west yorkshire
Posts: 307
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Re: anyone done a 632 BBC swap in a 72?
Awesome can't imagine the throttle response and power of that thing.
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#22 |
Registered User
Join Date: May 2022
Location: Scottsdale, AZ
Posts: 1
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Re: anyone done a 632 BBC swap in a 72?
Hey everyone. This is a very old thread. But would you happen to have an update on the 632 install in the K10? I have a 1972. I'm considering a 700+ hp ls swap but thought I'd consider the 632, but I don't want to overestimate my mechanical ability. Thanks, Mark.
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#23 |
Registered User
Join Date: Apr 2014
Location: California
Posts: 950
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Re: anyone done a 632 BBC swap in a 72?
The OP last logged in in early 2019, so good luck...
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