anyone done a 632 BBC swap in a 72?

[8lugthug]

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

[davepl]

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 ;-)

[8lugthug]

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?

[jocko]

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? Hmmm.... (I still have relatives in Indiana!) Hmmmm..... Hmmmmm...

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.

[8lugthug]

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.

[toolboxchev]

[8lugthug]

https://mail.aol.com/webmail/getPart...scope=STANDARD

[8lugthug]

here is the truck that the 632 is going in.

[35boulder]

Very nice looking truck. Nice looking shop as well.

[CRUSH2.0]

Originally Posted by 8lugthug

here is the truck that the 632 is going in.

WOW I like that!! What tires and lift are on that?

[Mike C]

Originally Posted by 8lugthug

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.

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.

[8lugthug]

Originally Posted by Mike C

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.

Sorry meant to say it had a 454 in it when purchased. the Headers will most likely have to be made from scratch. i can already see its going to be a huge pain. the front pulleys and radiator clearance seems to be tough. anyone know of some kind of lo pro pulleys set or someway to extend this gap? Thanks!

[8lugthug]

Originally Posted by jocko

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? Hmmm.... (I still have relatives in Indiana!) Hmmmm..... Hmmmmm...

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.

It will be running a built th400 with a built 205 tcase behind it. the truck will look exactly how it sits so to keep the classic style of the truck. all the internals of the axles will be beefed up with lockers and most likely chromoly shafts. He had to get an adapter to pair the 205 with the th400 which married together great.

[jocko]

Originally Posted by 8lugthug

It will be running a built th400 with a built 205 tcase behind it. the truck will look exactly how it sits so to keep the classic style of the truck. all the internals of the axles will be beefed up with lockers and most likely chromoly shafts. He had to get an adapter to pair the 205 with the th400 which married together great.

Got it, thanks for sharing. I can't imagine what the 632 conversion will end up costing, but, dang, I wouldn't change ANYthing on that beauty! Ha. That's just me though - everyone has their own truck plans & dreams, completely understand that simple fact. I really like that the plan is to keep it semi-stock looking on the outside. Can't wait to see how it progresses and thanks again for sharing.

[clay68c10]

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.

[68Gold/white]

LOL, I like the way you think!!!

A 632??? Why NOT, you only live once!!!

[8lugthug]

Originally Posted by 68Gold/white

LOL, I like the way you think!!!

A 632??? Why NOT, you only live once!!!

Haha exactly!

[57taskforce]

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

[OL SKOOL]

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.

[8lugthug]

Originally Posted by 57taskforce

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

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!

[Sparky dave]

Awesome can't imagine the throttle response and power of that thing.

[markaz]

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.

[jumpsoffrock]

The OP last logged in in early 2019, so good luck...