Are 350's interchangeable? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

tab a · 08-25-2007, 08:43 AM

My '72 C10 is an automatic with a 350 that may need a significant rebuild.

Since that's not really in the budget right now, I've found a 350 from a 1980 4x4 that I can buy reasonably inexpensively.

Will this be a straightforward swap? Any problem areas I need to watch out for, or reasons this might not work?

Thanks.

krue · 08-25-2007, 09:14 AM

Should be straight forward. A SBC is a SBC and they are fairly generic.

**JDL** · 08-25-2007, 09:15 AM

just pull one and put in the other you will want to change the exhast manifolds and pulleys and brackets.

GMC AMI · 08-25-2007, 10:54 AM

If original truck is a 2wd then the turbo 350 has a tailshaft. A 4wd one bolts to an adapter to tranfer case with no tailshaft. There is work required to change over if this is so.

Longhorn Man · 08-25-2007, 10:59 AM

that's only if you are swapping trannys too, but he's only asking about the engine.
85 or so they moved the oil dipstick to the drivers side which is a total PITA of you have A/C, othersise, it's the same.

AlienYouth · 08-25-2007, 11:00 AM

GMC, i think he's talkin bout the motor, not tranny : p

tab a · 08-25-2007, 12:13 PM

Yep, tranny would stay the same.

Thanks for all the help!

08-25-2007, 08:43 AM	#1
tab a Registered User Join Date: Jul 2004 Location: central KS Posts: 18	Are 350's interchangeable? My '72 C10 is an automatic with a 350 that may need a significant rebuild. Since that's not really in the budget right now, I've found a 350 from a 1980 4x4 that I can buy reasonably inexpensively. Will this be a straightforward swap? Any problem areas I need to watch out for, or reasons this might not work? Thanks.

08-25-2007, 09:14 AM	#2
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,450	Re: Are 350's interchangeable? Should be straight forward. A SBC is a SBC and they are fairly generic. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

08-25-2007, 09:15 AM	#3
JDL Senior Member Join Date: Sep 2000 Location: Agency IA. Posts: 1,839	Re: Are 350's interchangeable? just pull one and put in the other you will want to change the exhast manifolds and pulleys and brackets. __________________ 72 Chevy short step side with 454 air and tilt. 72 nova project car 63 chevy II drag car Agency Iowa

08-25-2007, 10:54 AM	#4
GMC AMI Registered User Join Date: Apr 2004 Location: The Other Maine! Posts: 2,236	Re: Are 350's interchangeable? If original truck is a 2wd then the turbo 350 has a tailshaft. A 4wd one bolts to an adapter to tranfer case with no tailshaft. There is work required to change over if this is so.

08-25-2007, 10:59 AM	#5
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Are 350's interchangeable? that's only if you are swapping trannys too, but he's only asking about the engine. 85 or so they moved the oil dipstick to the drivers side which is a total PITA of you have A/C, othersise, it's the same.

08-25-2007, 11:00 AM	#6
AlienYouth Registered User Join Date: Apr 2007 Location: Westminster, Maryland Posts: 411	Re: Are 350's interchangeable? GMC, i think he's talkin bout the motor, not tranny : p __________________ Picturesss 71 C10 383/TH400 13.65 @ 99... 2.06 60' spinnin :/

08-25-2007, 12:13 PM	#7
tab a Registered User Join Date: Jul 2004 Location: central KS Posts: 18	Re: Are 350's interchangeable? Yep, tranny would stay the same. Thanks for all the help!



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