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Old 04-29-2007, 09:06 PM   #1
69BBsuburban
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Question Help needed: swapping out 292 for a V-8 in a 4x4

Tech question here, not sure if I should post this in the engine, 4x4, or this section....but here it goes....
Have a '69 Suburban 1/2T 4x4 with a 292. I pulled the 292 out, going to get a Big Block.....anyway, the crossmember is angled as the motor mounts are off-set. See pics.....that's a spare 454 block I had laying around for mock-up. The driver's side pretty much lines up, although once heads and V/C's are on it I think it'd be a tight fit.
What stuff do I need to swap in the V-8? Are all 4x4 V-8 crossmembers the same??? I assume I'll need motor mounts/towers as well.

Any help with this greatly appreciated!!!
I plan on getting the parts ASAP....
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Old 04-29-2007, 09:10 PM   #2
1969k10stepside
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Re: Help needed: swapping out 292 for a V-8 in a 4x4

So,you want a BBC in your 4x4?Well,some problems people run in to is clearance with the firewall that most people handle with different valve covers,body lifts,or moving all the crossmembers dealing with motor/tranny/t case forward.The 6 cylinders had different motor crossmembers than the sbc V8s.There was no stock BBC in a 4wd in 67-72.The 292s had the crossmember at an angle.All the holes are in the frame for when you convert to the V8 style.No drilling required.I did this with my 71.It had a 292 and now has a mild 350.Just changed the crossmember and bolted it in the right spot.

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Old 04-29-2007, 09:19 PM   #3
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Re: Help needed: swapping out 292 for a V-8 in a 4x4

Cool...thanks...wouldn't happen to have a pic or two would ya???
But a bolt-in??? I unbolted the pass. side mount from the crossmember and frame and moved it back, the rear hole is off. No big deal I guess. So I can probably just use these and get just the crossmember then.....
Gotta have a BB....run 'em in all my rigs.
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Old 04-29-2007, 09:31 PM   #4
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Re: Help needed: swapping out 292 for a V-8 in a 4x4

The minimum you will need is a V8 crossmember.Some people use the crossmember from the 73-87 4wds for more clearance under the motor.The holes should all be there.You might find they line up once you have the correct crossmember.I dont have a pic with the V8 crossmember installed,but I think I do have a pic of where it should be.Now for clearance,do you prefer to run a body lift,move all the motor/tranny/t case crossmembers forward,or take the old hammer to your firewall?

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Old 04-30-2007, 04:28 PM   #5
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Smile Re: Help needed: swapping out 292 for a V-8 in a 4x4

Quote:
Originally Posted by 1969k10stepside View Post
Now for clearance,do you prefer to run a body lift,move all the motor/tranny/t case crossmembers forward,or take the old hammer to your firewall?
Hahaha!...Well, I'd rather not use a body lift OR a hammer. I'll move everything forward if needed, provided there will be enough clearance for the waterpump......
Thanks for the help!
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Old 04-30-2007, 04:55 PM   #6
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Re: Help needed: swapping out 292 for a V-8 in a 4x4

Send Yukon Jack a PM. He put a big block in his 4x4, he will give you some pointers.
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Old 04-30-2007, 06:35 PM   #7
alschevy
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Re: Help needed: swapping out 292 for a V-8 in a 4x4

so what are you going to do with the 292 six engine. i have been trying to find one for my 67 chevy truck
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Old 04-30-2007, 07:46 PM   #8
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Re: Help needed: swapping out 292 for a V-8 in a 4x4

I'm redoing my 72 292 and have an internet bud who is looking for an offset air cleaner for is truck ...let me know if anything is going to get gone.
Thanks,
joe
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Old 05-01-2007, 12:57 AM   #9
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Re: Help needed: swapping out 292 for a V-8 in a 4x4

Your just down the road from me. I can let you look at my small block 4x4 this weekend. Shoot me a PM
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Old 05-01-2007, 10:22 AM   #10
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Re: Help needed: swapping out 292 for a V-8 in a 4x4

Quote:
Originally Posted by alschevy
so what are you going to do with the 292 six engine. i have been trying to find one for my 67 chevy truck
My father-in-law wants it for his '66 Suburban.....

Quote:
Originally Posted by OhNoJoe
I'm redoing my 72 292 and have an internet bud who is looking for an offset air cleaner for is truck ...let me know if anything is going to get gone.
The offset air cleaner is missing........
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