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I need to replace the bell-housing on my 1968. This was originally a 427, but now has a 454. It is a Muncie 4 speed.
The shop discovered a couple of cracks while taking the clutch out. I am replacing the clutch and will probably be going with a center force dual friction clutch. Looks like the flywheel has some hot spots as well.
I'm not doing this myself. I wish I had the knowledge and ability. I am ordering the parts myself and want to make sure I get the correct bell-housing. I wasn't sure if it matter that the engine is now a 1974 Chevy 454 built to 468.
66 to 74 bigblock should all be the same, did you look at the listings at vendor sites?
Not sure about this - the SHP big blocks, which used the smaller 153 tooth light weight flywheel and L88 clutch, MAY have used the smaller bell housing used for most of the mid years. If so, the larger 168 tooth flywheel with 11" clutch won't fit.
YMMV
Last edited by larrywalk; Sep 6, 2012 at 09:50 AM.
Reason: punctuation
One day I was sitting at a light and I heard a crack. I had no idea what it was.
The next day I found one of the small bolts that holds the pressure plate to the flywheel had come loose and at idle, cracked a hole through my bell-housing. Now imagine a one pound piece of flywheel at 6,000 RPM.
You may want to consider a scatter shield (two piece)
From: Las Vegas - Just stop perpetuating myths please.
Originally Posted by birdsmith
Aluminum can be very easily welded...
Who's gonn'a see a weld scar on a bellhousing. Just a simple bead/structural weld and sounds like fun to borrow/rent a 220V Lincoln stick welder. Gouge/grind out the crank on one side. Get some alum stick rod, set the Lincoln machine on AC current & setting for that rod and have some fun for cheap. Much cheaper than new bellhousing.
BTW the small block bell housing bolts up too but like was said u need the correct starter bolt pattern. Plenty of those old muncie bellhousings out there used - heck i got at least one spare without trying/looking - check craiglist. Alot of transmission sellers will part out a bellhousing for pocket change.
Who's gonn'a see a weld scar on a bellhousing. Just a simple bead/structural weld and sounds like fun to borrow/rent a 220V Lincoln stick welder. Gouge/grind out the crank on one side. Get some alum stick rod, set the Lincoln machine on AC current & setting for that rod and have some fun for cheap. Much cheaper than new bellhousing.
BTW the small block bell housing bolts up too but like was said u need the correct starter bolt pattern. Plenty of those old muncie bellhousings out there used - heck i got at least one spare without trying/looking - check craiglist. Alot of transmission sellers will part out a bellhousing for pocket change.
468 BBC?,..I'd use this opportunity to upgrade to a scattershield. Yes, it's 2x the money, but in the end, it's very inexpensive insurance against loss of limb,..or worse, the loss of your passenger's limb(s).
468 BBC?,..I'd use this opportunity to upgrade to a scattershield. Yes, it's 2x the money, but in the end, it's very inexpensive insurance against loss of limb,..or worse, the loss of your passenger's limb(s).
Hi Stingray Jer, I am restoring a 68 L88 now. It came to me with an explosion-proof Lakewood bellhousing. I will gladly trade it for the correct bellhousing for my car. Mine was also Corvette bronze when born. I have a very early Vin. Car was built 2nd week of Sept, 1967. Ken
yes.... and a steel flywheel, billet if your wallet can afford it.
That's a 12 - 20 lb piece of steel that's turning towards your ankles - so if it lets go (and they do) without a shield it will take whatever is in the way off (ask Don Garlits)
and to answer your question... all SBC and BBC have the same bolt pattern, and while there are odd-ball transmission mounting bolt patterns, the block pattern is the same.
That said, there are some bellhousings that won't fit over an 11" clutch - but they're even a bit hard to find anymore.
Last edited by SuperBuickGuy; Dec 6, 2012 at 01:31 AM.
I do not know if this is the original bell-housing. Would it be stamped with a number that I can verify. I had not noticed if it had the VIN on it or not.
I will be happy to check for you. I know it is NOM, but it is a BB 68. I am happy to check it out for you. It is cracked and will need a welding. I can get you photos if you need.