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

71/454 · 08-23-2006, 08:27 PM

I have a bbc and a super t-10 that i want to put together i have a bellhousing but when i ran the numbers it tells me its out of a truck so the opening on the trans side is 5 and something inches. I was reading a site called novak conversions and it said that the bellhousing opening and the front bearing retainer on the trans have to be the exact size, which is 4 and 11/16. Even though the hole on mine is larger and the trans will fit is this a problem? Has anyone else run into this?

**kwmech** · 08-23-2006, 08:45 PM

The nose cone of the trans indexes on the bellhousing to keep everything centered. I think what you need is a bellhousing off a car such as a chevelle or camaro. You could even step up to a Lakewood

**Green Machine** · 08-23-2006, 09:10 PM

Are you wanting to run a cast iron bellhousing mounted to the frame ? If so I think 67 and earlier truck cast bellhousings have the smaller bearing retainer hole, or like mentioned a car housing, or a machine shop can make a ring to fill the gap, or some trannys have different bearing retainers available, not sure if T-10 does or not.

71/454 · 08-23-2006, 11:27 PM

I was given the bellhousing for free a while ago and thought i could use it. I haven't done much in the way of manual trans stuff so the more questions i ask first it seems the less money i pay later thanks alot for the help.

08-23-2006, 08:27 PM	#1
71/454 Turbo Guy Join Date: Jan 2005 Location: Calgary Alberta Posts: 353	Bellhousing size? I have a bbc and a super t-10 that i want to put together i have a bellhousing but when i ran the numbers it tells me its out of a truck so the opening on the trans side is 5 and something inches. I was reading a site called novak conversions and it said that the bellhousing opening and the front bearing retainer on the trans have to be the exact size, which is 4 and 11/16. Even though the hole on mine is larger and the trans will fit is this a problem? Has anyone else run into this? __________________ 1972 Gmc Custom swb intercooled twin turbo 327 10.5-1 and 12 lbs of boost, Nodular iron case super t-10 4 speed with a blowproof bellhousing, 12 bolt eaton posi soon to have moser axles. 1998 Honda CR250 fully ported, case matched, milled head, vortexed carb and revalved suspension but don't forget the woody woodpecker decal kit! Things I've broken so far: 12 bolt diff saginaw 4 spd many, many pieces Aluminum case Super t-10 4 spd

08-23-2006, 08:45 PM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,550	Re: Bellhousing size? The nose cone of the trans indexes on the bellhousing to keep everything centered. I think what you need is a bellhousing off a car such as a chevelle or camaro. You could even step up to a Lakewood

08-23-2006, 09:10 PM	#3
Green Machine Senior Member Join Date: Jul 2004 Location: Estherville, Iowa Posts: 3,371	Re: Bellhousing size? Are you wanting to run a cast iron bellhousing mounted to the frame ? If so I think 67 and earlier truck cast bellhousings have the smaller bearing retainer hole, or like mentioned a car housing, or a machine shop can make a ring to fill the gap, or some trannys have different bearing retainers available, not sure if T-10 does or not. __________________ 1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0

08-23-2006, 11:27 PM	#4
71/454 Turbo Guy Join Date: Jan 2005 Location: Calgary Alberta Posts: 353	Re: Bellhousing size? I was given the bellhousing for free a while ago and thought i could use it. I haven't done much in the way of manual trans stuff so the more questions i ask first it seems the less money i pay later thanks alot for the help. __________________ 1972 Gmc Custom swb intercooled twin turbo 327 10.5-1 and 12 lbs of boost, Nodular iron case super t-10 4 speed with a blowproof bellhousing, 12 bolt eaton posi soon to have moser axles. 1998 Honda CR250 fully ported, case matched, milled head, vortexed carb and revalved suspension but don't forget the woody woodpecker decal kit! Things I've broken so far: 12 bolt diff saginaw 4 spd many, many pieces Aluminum case Super t-10 4 spd



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