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#54375 01/03/2006 4:33 AM | Joined: Mar 2005 Posts: 70 Wrench Fetcher | | Wrench Fetcher Joined: Mar 2005 Posts: 70 | Will a modern bellhousing off a chevy 350 work on the SM420 tranny. Was planning on using the clutch, pressure plate and flywheel off the original motor. thought this had been covered before but coulnd find it anywhere on the site, only spent 45 min. looking are these topics searchable???? | | |
#54376 01/03/2006 5:28 AM | Joined: Apr 2002 Posts: 1,571 Shop Shark | | Shop Shark Joined: Apr 2002 Posts: 1,571 | Yes, the archive search has always worked for me.
You can get a '60s bellhousing that used the SM420. The standard bellhousing pattern came into use on trucks after the 235 ended production in '62. The SM420 was used until somewhere in the '67-'69 range. | | |
#54377 01/04/2006 5:13 AM | Joined: Mar 2005 Posts: 70 Wrench Fetcher | | Wrench Fetcher Joined: Mar 2005 Posts: 70 | Call me stupid in advance but were is the archive search located, just spent several min. looking and cant find it, does that mean I have to find a sixties bell housing???? | | |
#54378 01/04/2006 7:01 AM | Joined: Aug 2000 Posts: 346 Shop Shark | | Shop Shark Joined: Aug 2000 Posts: 346 | The only concern with the SM-420 is the bolt holes in the mounting ears. SM-420 mounting ears The Chevy V-8 truck bellhousing from '55 up (not including the ones around '62 with the hydraulic clutch) looks like this: \'55 up truck V8 bellhousing I ran a '69 350 in my '49 half ton with this bellhousing. I had also used a '54 crossmember which bolts to this bellhousing in the '49 frame. Notice the upper mounting holes are tapped while the lower ones are drilled to match the SM-420. I see these bellhousings on ebay frequently listed as Corvette items. Easiest thing to spot is the reinforcing ribs above the upper trans mounting holes.
'38 Chevy 1-1/2 ton
'49 Chevy 1/2 ton
'54 Chevy 6400 2 ton
'55.2 GMC 3/4 ton
'56 GMC 1-ton
No Room Left in Shop
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#54379 01/04/2006 3:44 PM | Joined: Jul 2005 Posts: 2,031 Shop Shark | | Shop Shark Joined: Jul 2005 Posts: 2,031 | Two center hole sizes for that cast iron bell housing exist, the SM420 is a smaller hole than say the SM465. One is under 5'' dia. the other is over 5''. L6 fits V8's
Jim & Caroline
The highway is for gamblers, better use your good sense."
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Every Shaver | Now Can Snore | Six More Minutes | Than Before ... | Half A Pound for Half a Dollar | Spread On Thin | Above the Collar || BURMA-SHAVE
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