BBC Clam Shells F/S-Ks. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Ironhorse** · 12-07-2007, 06:28 PM

These are from a batch of parts I got awhile back and since I don't have a BBC in my 4x4 figured some one may want them. Two sets, need blasted and painted to be nice but no tears or cracks. $35 a pair shipped or both sets for $60 shipped.

**Ironhorse** · 12-14-2007, 05:12 PM

Anyone for $50 shipped on all four or $30 a set shipped?

cnshoot · 04-04-2008, 09:59 AM

i need the better of the 2 thanks

**Ironhorse** · 04-04-2008, 01:13 PM

I sold both sets of the BBC clam shells at swap meet in Feb. Surprised to see a parts posting from that far back. Don't have any other shells at this time. Sorry not much help for you.

bigblockorange · 04-04-2008, 04:41 PM

What is the part number on the shells? You could slow ship them to me in PA 17011 to save you a few bucks.

HuggerCST · 04-04-2008, 05:18 PM

What is the difference between the big block shells and small block shells?

woodridge · 04-04-2008, 05:43 PM

I think 73 up they are the same. It is the frame mounts that have the $$$ value.

HuggerCST · 04-04-2008, 05:47 PM

Quote:

Originally Posted by woodridge

I think 73 up they are the same. It is the frame mounts that have the $$$ value.

That's kinda what I was thinking. 72 bb shells are different?

**leddzepp** · 04-05-2008, 09:30 AM

I was also wondering if the 72 BB shells were differnet than the 73-up??

**Ironhorse** · 04-06-2008, 01:16 AM

Can't help with the part numbers on the clam shells as I did not write them down before I sold them. Since I don't have a BBC it never occured to me. Also not a clue as to the 72 vrs. the 73 and newer clam shells. Not much help I know but don't have any info to help with the questions.

454_72_4X4 · 04-06-2008, 05:11 PM

There's 2 different style clamshells that I know of. BB or SB has nothing to do with the difference. Some trucks came with plates sandwiched between the clamshell and the engine block. The plates are for attaching reinforcing rods that run from the plates down to the bottom of the bellhousing. I've only seen these rods on automatic trucks and they attack to a cast aluminum torque convertor cover.

The clamshells used with the reinforcing rod plates are slightly shorter to make up for the thickness of the plates.

BB and SB use the exact same mounting dimensions. Where one bolts in so will the other, as long as there's room for the upper part of the engine.

12-07-2007, 06:28 PM	#1
Ironhorse Senior Member Join Date: Jul 2001 Location: Wellington, Ks Posts: 10,294	BBC Clam Shells F/S-Ks. These are from a batch of parts I got awhile back and since I don't have a BBC in my 4x4 figured some one may want them. Two sets, need blasted and painted to be nice but no tears or cracks. $35 a pair shipped or both sets for $60 shipped. __________________ 1971 Chevy 1/2T 4x4 LWB 350 V-8 Was sm465-now 350TH/np205 Tilt, Tach, Towhooks Original Truck AM/FM Wellington, Ks Last edited by Ironhorse; 11-02-2008 at 10:01 PM.

12-14-2007, 05:12 PM	#2
Ironhorse Senior Member Join Date: Jul 2001 Location: Wellington, Ks Posts: 10,294	Re: BBC Clam Shells F/S-Ks. Anyone for $50 shipped on all four or $30 a set shipped? __________________ 1971 Chevy 1/2T 4x4 LWB 350 V-8 Was sm465-now 350TH/np205 Tilt, Tach, Towhooks Original Truck AM/FM Wellington, Ks

04-04-2008, 09:59 AM	#3
cnshoot Registered User Join Date: Jan 2003 Location: minden Posts: 358	Re: BBC Clam Shells F/S-Ks. i need the better of the 2 thanks __________________ 72 cst 2wd blazer sb soon to have tilt manual 72 gmc swb fleet 2wd bb air tilt auto 93 c/3500 crew-cab dually 03 chevy suburban LT quadrasteer c/2500 4x4

04-04-2008, 01:13 PM	#4
Ironhorse Senior Member Join Date: Jul 2001 Location: Wellington, Ks Posts: 10,294	Re: BBC Clam Shells F/S-Ks. I sold both sets of the BBC clam shells at swap meet in Feb. Surprised to see a parts posting from that far back. Don't have any other shells at this time. Sorry not much help for you. __________________ 1971 Chevy 1/2T 4x4 LWB 350 V-8 Was sm465-now 350TH/np205 Tilt, Tach, Towhooks Original Truck AM/FM Wellington, Ks

04-04-2008, 04:41 PM	#5
bigblockorange Senior Member Join Date: Jan 2007 Location: central pa Posts: 428	Re: BBC Clam Shells F/S-Ks. What is the part number on the shells? You could slow ship them to me in PA 17011 to save you a few bucks. __________________ I guess you could say I’m not really lazy I’m just real good at doing nothing!!!!

04-04-2008, 05:18 PM	#6
HuggerCST Registered User Join Date: Jul 2001 Location: North Louisiana Posts: 4,501	Re: BBC Clam Shells F/S-Ks. What is the difference between the big block shells and small block shells? __________________ Wynne 70 CST short fleet Hugger orange & white, 350/350, ps, pb, air, tilt, tach/vac/speedwarning, original buckets, AM/FM, oak bed floor, shoulder belts, 3.5"/5.5" drop, 20" American Racing VN425s. Build thread 53 Chevy shortbed 69 Camaro Click here to subscribe Chevy GMC International Truck Club Louisiana Charter Member http://www.louisianaclassictruckclub.com

04-04-2008, 05:43 PM	#7
woodridge Senior Member Join Date: Feb 2005 Location: Maynardville, Tn Posts: 3,030	Re: BBC Clam Shells F/S-Ks. I think 73 up they are the same. It is the frame mounts that have the $$$ value. __________________ SEMA Network- Protect our Hobby! 71 C30 in pieces, starting to come together. Click here for A Place For Tennessee Truck Enthusiest To Meet

04-05-2008, 09:30 AM	#9
leddzepp Moderator Join Date: May 2007 Location: Southern Cal Posts: 20,031	Re: BBC Clam Shells F/S-Ks. I was also wondering if the 72 BB shells were differnet than the 73-up??

04-06-2008, 01:16 AM	#10
Ironhorse Senior Member Join Date: Jul 2001 Location: Wellington, Ks Posts: 10,294	Re: BBC Clam Shells F/S-Ks. Can't help with the part numbers on the clam shells as I did not write them down before I sold them. Since I don't have a BBC it never occured to me. Also not a clue as to the 72 vrs. the 73 and newer clam shells. Not much help I know but don't have any info to help with the questions. __________________ 1971 Chevy 1/2T 4x4 LWB 350 V-8 Was sm465-now 350TH/np205 Tilt, Tach, Towhooks Original Truck AM/FM Wellington, Ks

04-06-2008, 05:11 PM	#11
454_72_4X4 Registered User Join Date: Apr 2004 Location: N.E. MO Posts: 1,749	Re: BBC Clam Shells F/S-Ks. There's 2 different style clamshells that I know of. BB or SB has nothing to do with the difference. Some trucks came with plates sandwiched between the clamshell and the engine block. The plates are for attaching reinforcing rods that run from the plates down to the bottom of the bellhousing. I've only seen these rods on automatic trucks and they attack to a cast aluminum torque convertor cover. The clamshells used with the reinforcing rod plates are slightly shorter to make up for the thickness of the plates. BB and SB use the exact same mounting dimensions. Where one bolts in so will the other, as long as there's room for the upper part of the engine. __________________ 72 C20 4X4 454 4 speed 89 Trans Am (was) 305 TPI 700r4 93 C1500 2wd Extended cab 350 700r4 98 Sonoma (TPI outa the Trans Am) 03 Yamaha 660 Raptor 03/04 660 Raptor 07 700 Raptor 85 Honda Odyssey

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