Bellhousing Interchange - The 1947 - Present Chevrolet & GMC Truck Message Board Network

67chevytodd · 05-31-2007, 11:26 PM

I have a 67 Chevy C-10, 250 I-6, 4spd manual with a broken bellhousing. I also have a donor 67 GMC 1/2 ton with a 305 v-6 4spd manual. I was wondering if the bellhousing were the same and could be interchanged? Thanks, Todd

rwgregory · 06-01-2007, 03:21 AM

The GMC V-6 bellhousing will not bolt up to any other engine except a GMC V-6. However any GM bellhousing from either an I-6, small block or big block will interchange.

**'68OrangeSunshine** · 06-01-2007, 06:16 AM

That's funny, there was a guy asking this same question over on www.inliners.org
I didn't know the GMC V6s were different.

crazy longhorn · 06-01-2007, 08:57 AM

Just be aware that the center hole in the bell is different over the yrs. 67 & older is 4 11/16", while 68 up is 5 1/8" diameter. The older bell will accept a car trans(20/21/22 Muncie & center properly). CrazyL

**'68OrangeSunshine** · 06-02-2007, 05:33 AM

Quote:

Originally Posted by crazy longhorn

Just be aware that the center hole in the bell is different over the yrs. 67 & older is 4 11/16", while 68 up is 5 1/8" diameter. The older bell will accept a car trans(20/21/22 Muncie & center properly). CrazyL

The SM465 bellhousing has the casting #: 3925505 --5-1/8".
The SM420 bellhousing is #: 3815891 -- 4-9/16" [the way I measured it.]

GREASEMONKEY72 · 06-02-2007, 05:54 AM

as much as i love the i6's i think itd be cool if you put the v6 into the chevy, as far as i know there isnt any gmc 305 v6's in chevy's

05-31-2007, 11:26 PM	#1
67chevytodd Junior Member Join Date: Aug 2003 Location: SW Nebraska Posts: 50	Bellhousing Interchange I have a 67 Chevy C-10, 250 I-6, 4spd manual with a broken bellhousing. I also have a donor 67 GMC 1/2 ton with a 305 v-6 4spd manual. I was wondering if the bellhousing were the same and could be interchanged? Thanks, Todd __________________ Old Chevys never die they are just reborn!

06-01-2007, 03:21 AM	#2
rwgregory Registered User Join Date: Apr 2005 Location: Chula Vista, California Posts: 495	Re: Bellhousing Interchange The GMC V-6 bellhousing will not bolt up to any other engine except a GMC V-6. However any GM bellhousing from either an I-6, small block or big block will interchange. __________________ rwgregory 67 GMC 2500 ,2w/d wide box 305 V-6, 4-speed

06-01-2007, 06:16 AM	#3
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,189	Re: Bellhousing Interchange That's funny, there was a guy asking this same question over on www.inliners.org I didn't know the GMC V6s were different. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

06-01-2007, 08:57 AM	#4
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,403	Re: Bellhousing Interchange Just be aware that the center hole in the bell is different over the yrs. 67 & older is 4 11/16", while 68 up is 5 1/8" diameter. The older bell will accept a car trans(20/21/22 Muncie & center properly). CrazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

06-02-2007, 05:54 AM	#6
GREASEMONKEY72 Registered User Join Date: Aug 2006 Location: Bakersfield,CA Posts: 7,893	Re: Bellhousing Interchange as much as i love the i6's i think itd be cool if you put the v6 into the chevy, as far as i know there isnt any gmc 305 v6's in chevy's __________________ -steven Alte Seele S.S. "Allison" '72 C/10 LWB 350SB/TH350 - DD PITBULL IS NOT A CRIME



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