1963 4X4 bell housing. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

CanadaBuzz · 02-12-2012, 08:30 PM

I have a 1963 Gmc 4X4 with a 6cyl 235CI with a 4 speed manual transmission. Is there a bell housing I can use to swap to a SBC?

lowrollin70gmc · 02-19-2012, 02:46 AM

EDIT: See below posts for correct info on 235s. I based my prior response on assuming 235 & 250 shared bellhousing pattern.

The bell housing bolt pattern should be the same. I just bolted up a 97 small block T56 to my 250 with no problems.

maxwoof · 02-25-2012, 05:27 PM

I would double check in terms of the 235. I would agree with the above If yours was a 250. However, 1963 was the last year for the 235 and then only in the 4x4. It is my understanding that the new sixes that came out in 63, which will interchange with the SBC, are entirely different from the 235.

That said, they did use the same 4 speed until about 1968 or so, so the 235 bell housing may interchange. Or, your tranny may bolt up to a later SBC with a 4 speed bell housing. Good luck.
Posted via Mobile Device

61K10 · 02-27-2012, 02:04 PM

I had a 235 in a 1958 and the B/H was not compatible with a sbc. any 55 and up v8 truck with side mounts should work. must be a truck! 55-57 cars are similar but use different side mounts. the trans mount on both housings are the same. if using a starter thats bolts to the block some mods have to be done.

02-12-2012, 08:30 PM	#1
CanadaBuzz Registered User Join Date: Jan 2012 Location: Redcliff Alberta Canada Posts: 2	1963 4X4 bell housing. I have a 1963 Gmc 4X4 with a 6cyl 235CI with a 4 speed manual transmission. Is there a bell housing I can use to swap to a SBC?

02-19-2012, 02:46 AM	#2
lowrollin70gmc Too many projects Join Date: Mar 2004 Location: Fargo, ND land of the flat hills Posts: 1,147	Re: 1963 4X4 bell housing. EDIT: See below posts for correct info on 235s. I based my prior response on assuming 235 & 250 shared bellhousing pattern. The bell housing bolt pattern should be the same. I just bolted up a 97 small block T56 to my 250 with no problems. __________________ Andrew 84 GMC C1500 SWB 6.2 Diesel/700R4/3.42 "Grandpa's odd duck" 70 GMC C1500 LWB My first truck: shaved, bagged, and more: the lowrollin70gmc 68 K20 Suburban 12V Cummins/NV5600/NP205/D60/11.5AAM 3.73s "Dakota Cadillac" 63 Chevy II Nova Coupe 250 I6/T56/4.56s "Economy car" 53 Willys Wagon 350/NV4500/BW4401/HP D44/9inch “Winter Wagon” 30 Model A 16 Focus ST Last edited by lowrollin70gmc; 02-27-2012 at 05:11 PM. Reason: I was wrong, assumed 235 shared housing w/ 250

02-25-2012, 05:27 PM	#3
maxwoof Registered User Join Date: Mar 2010 Location: Edgewater NJ Posts: 160	Re: 1963 4X4 bell housing. I would double check in terms of the 235. I would agree with the above If yours was a 250. However, 1963 was the last year for the 235 and then only in the 4x4. It is my understanding that the new sixes that came out in 63, which will interchange with the SBC, are entirely different from the 235. That said, they did use the same 4 speed until about 1968 or so, so the 235 bell housing may interchange. Or, your tranny may bolt up to a later SBC with a 4 speed bell housing. Good luck. Posted via Mobile Device

02-27-2012, 02:04 PM	#4
61K10 Registered User Join Date: Feb 2012 Location: pleasant valley--placerville ca Posts: 3,039	Re: 1963 4X4 bell housing. I had a 235 in a 1958 and the B/H was not compatible with a sbc. any 55 and up v8 truck with side mounts should work. must be a truck! 55-57 cars are similar but use different side mounts. the trans mount on both housings are the same. if using a starter thats bolts to the block some mods have to be done. __________________ 1961 chevy K10 my build is------------61K10 build Last edited by 61K10; 02-27-2012 at 02:10 PM.



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