Big Block Cast Iron Exhaust Manifolds - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**stllookn** · 04-27-2006, 09:38 PM

Anyone have pics of some stock high performance big block exhaust manifolds? OK, then...how about medium performance...or just something that looks and works good...LOL! Big swap meet coming up and I don't want to miss something that I need.

william 70 c/20 · 04-27-2006, 10:00 PM

i could post a pic of my headers? i pulled off a pair of those old BBC "police" manifolds..zoomies out the top?

**stllookn** · 04-27-2006, 11:24 PM

william, I would like to see the stockers! Maybe the "cop" units were high performance...just like the Blues Brothers said! I could go with headers but really want some cast iron on their for longevity and serviceability.

**PICKMUP** · 04-28-2006, 12:02 AM

88 and newer cast 454 manifolds flow better/much better than our old restrictive ones, especially on the LH side where ours makes a square turn down.

jhow66 · 04-28-2006, 12:21 AM

This help?

rkarr · 04-28-2006, 12:29 AM

Quote:

Originally Posted by jhow66

This help?

All you need now is a truck for your engine! This thing looks nice!

**stllookn** · 04-28-2006, 09:12 AM

Frank...got pics? When you mean the turn down do you mean like in the picture jhow66 provided? I think I saw a set of later model manifolds at Monroe last year and should have got them but was not sure about them. Will the later models fit my Mark IV heads?

jhow66 · 04-28-2006, 09:20 AM

Quote:

Originally Posted by rkarr

All you need now is a truck for your engine! This thing looks nice!

It went into this:--(orangeuavol's 72 Blazer)

jhow66 · 04-28-2006, 09:24 AM

Quote:

Originally Posted by stllookn

Frank...got pics? When you mean the turn down do you mean like in the picture jhow66 provided? I think I saw a set of later model manifolds at Monroe last year and should have got them but was not sure about them. Will the later models fit my Mark IV heads?

I had those in the photo on my 502 crate motor before I installed headers.

midyearvet@aol. · 04-29-2006, 12:41 AM

I have a 427 in my short stepside 4X4 and I used Corvette manifolds. Had to modify the rear of the engine x member slightly. These are about the closeist thing you can get to headers and be a manifold.

Rick / Ca.

68 50th · 04-29-2006, 01:44 AM

67 Corvette 427 hi perf exhaust manifolds on eBay:
http://cgi.ebay.com/ebaymotors/1967-...temZ8060187559

da-burb · 04-29-2006, 07:02 PM

here's the ones Pickmup is talking about.

You will also find a set of factory stainless 454 manifolds made for the P30's 1986-89. They look like they would be a huge improvement. Pickmup had a picture of these all cleaned up and looking pretty a while back if I remember correctly. I have a set I could sell but I don't have pictures at this time.

**PICKMUP** · 04-29-2006, 10:16 PM

I like the stainless ones on non-stock looking trucks/motors. They fit great and flow very well.
There is another late model cast set that has a little shorter collector area on the RH side, much like da burb's.

Bob Moore · 04-30-2006, 01:29 AM

da-burb What is the application for those you showed in your reply? Year(s), etc?

Thanks - Bob

da-burb · 04-30-2006, 11:37 AM

I just found that picture on ebay. Here is the completed auction.
http://cgi.ebay.com/ebaymotors/88-BI...57779323QQrdZ1

auction # 8057779323

**stllookn** · 05-02-2006, 08:58 PM

OK...sorry for the brain fade. Which of those sets provides the best low end to mid-range performance? I am guessing the ones Frank showed. I recall seeing a new set similar to the ones the da-burb showed (only they are ribbed without the machined surface) at the swap meet for about $100.

I am not very excited about that expanded metal section in the stainless manifolds. It must be there for some reason. I know those are probably really expensive...WOW...$700 BIN!

4x4Poet · 05-03-2006, 03:53 AM

Sanderson Headers sells cast iron BBC manifolds for some serious coin.

They would be a big find at a swap meet.

04-27-2006, 09:38 PM	#1
stllookn Saving 1 truck at a time! Join Date: Aug 2001 Location: Kent, WA Posts: 6,463	Big Block Cast Iron Exhaust Manifolds Anyone have pics of some stock high performance big block exhaust manifolds? OK, then...how about medium performance...or just something that looks and works good...LOL! Big swap meet coming up and I don't want to miss something that I need. __________________ '68 C20 Longhorn 50th Anniversary 400/TH400 '68 C20 Longhorn 50th Anniversary 468/TH400w/buckets '72 C20 Halfhorn (Longhorn w/o cab and front clip) '69 Flxible Cruiser (look up ugly in the dictionary)

04-27-2006, 10:00 PM	#2
william 70 c/20 Registered User Join Date: Jan 2004 Location: LV,NV Posts: 169	Re: Big Block Cast Iron Exhaust Manifolds i could post a pic of my headers? i pulled off a pair of those old BBC "police" manifolds..zoomies out the top?

04-27-2006, 11:24 PM	#3
stllookn Saving 1 truck at a time! Join Date: Aug 2001 Location: Kent, WA Posts: 6,463	Re: Big Block Cast Iron Exhaust Manifolds william, I would like to see the stockers! Maybe the "cop" units were high performance...just like the Blues Brothers said! I could go with headers but really want some cast iron on their for longevity and serviceability. __________________ '68 C20 Longhorn 50th Anniversary 400/TH400 '68 C20 Longhorn 50th Anniversary 468/TH400w/buckets '72 C20 Halfhorn (Longhorn w/o cab and front clip) '69 Flxible Cruiser (look up ugly in the dictionary)

04-28-2006, 12:02 AM	#4
PICKMUP "Trucks with Class" Join Date: Jul 2000 Location: OLYMPIA, WA, USA Posts: 8,121	Re: Big Block Cast Iron Exhaust Manifolds 88 and newer cast 454 manifolds flow better/much better than our old restrictive ones, especially on the LH side where ours makes a square turn down.

04-28-2006, 12:21 AM	#5
jhow66 Registered User Join Date: Jun 2002 Location: Knoxville Tenn. Posts: 3,058	Re: Big Block Cast Iron Exhaust Manifolds This help? Attached Images __________________ 56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer

04-28-2006, 09:12 AM	#7
stllookn Saving 1 truck at a time! Join Date: Aug 2001 Location: Kent, WA Posts: 6,463	Re: Big Block Cast Iron Exhaust Manifolds Frank...got pics? When you mean the turn down do you mean like in the picture jhow66 provided? I think I saw a set of later model manifolds at Monroe last year and should have got them but was not sure about them. Will the later models fit my Mark IV heads? __________________ '68 C20 Longhorn 50th Anniversary 400/TH400 '68 C20 Longhorn 50th Anniversary 468/TH400w/buckets '72 C20 Halfhorn (Longhorn w/o cab and front clip) '69 Flxible Cruiser (look up ugly in the dictionary)

04-29-2006, 12:41 AM	#10
midyearvet@aol. Registered User Join Date: Jun 2003 Location: Napa, Ca. Posts: 103	Re: Big Block Cast Iron Exhaust Manifolds I have a 427 in my short stepside 4X4 and I used Corvette manifolds. Had to modify the rear of the engine x member slightly. These are about the closeist thing you can get to headers and be a manifold. Rick / Ca.

04-29-2006, 01:44 AM	#11
68 50th Senior Member Join Date: Jul 2004 Location: Sweden Posts: 833	Re: Big Block Cast Iron Exhaust Manifolds 67 Corvette 427 hi perf exhaust manifolds on eBay: http://cgi.ebay.com/ebaymotors/1967-...temZ8060187559 Attached Images __________________ Mats.. ---------------------------------------------------- 1971 Cheyenne Super Custom Camper 475CBB/TH400/AC 1992 Silverado Sport Truck 1988 Silverado 2500 Ext Longbed 4x4 2001 GMC Sierra SLT 4x4 1990 Chevrolet K3500 1965 Pontiac Grand Prix 1980 Z 28 350/4-speed/AC/T-top 1980 Camaro Coupe V6/3-speed 1979 Buick Century Wagon

04-29-2006, 07:02 PM	#12
da-burb "Ochre Ogre" Join Date: Apr 2000 Location: Springfield, MN Posts: 3,558	Re: Big Block Cast Iron Exhaust Manifolds here's the ones Pickmup is talking about. You will also find a set of factory stainless 454 manifolds made for the P30's 1986-89. They look like they would be a huge improvement. Pickmup had a picture of these all cleaned up and looking pretty a while back if I remember correctly. I have a set I could sell but I don't have pictures at this time. __________________ Bowtie Truck Stop Inc. Mid-West GM Truck Restoration Parts Supplier Your Key Parts, Auto Metal Direct, Dynacorn, and Goodmark dealer. like us @ www.facebook.com/BowtieTruckStop 1971 C-10 Suburban (Ochre) 1971 K-10 Suburban (Ochre) 1972 C-10 Suburban (Ochre) 1972 K-20 Suburban (Yellow- that just aint right!) Springfield, Minnesota 56087

04-29-2006, 10:16 PM	#13
PICKMUP "Trucks with Class" Join Date: Jul 2000 Location: OLYMPIA, WA, USA Posts: 8,121	Re: Big Block Cast Iron Exhaust Manifolds I like the stainless ones on non-stock looking trucks/motors. They fit great and flow very well. There is another late model cast set that has a little shorter collector area on the RH side, much like da burb's. Attached Images

04-30-2006, 01:29 AM	#14
Bob Moore Registered User Join Date: Feb 2004 Location: Tacoma WA Posts: 1,365	Re: Big Block Cast Iron Exhaust Manifolds da-burb What is the application for those you showed in your reply? Year(s), etc? Thanks - Bob __________________ 67 C-20 LWB, tilt, speed alert, vac, 454, T400 67 C-10 SWB, factory air with more to follow

04-30-2006, 11:37 AM	#15
da-burb "Ochre Ogre" Join Date: Apr 2000 Location: Springfield, MN Posts: 3,558	Re: Big Block Cast Iron Exhaust Manifolds I just found that picture on ebay. Here is the completed auction. http://cgi.ebay.com/ebaymotors/88-BI...57779323QQrdZ1 auction # 8057779323 __________________ Bowtie Truck Stop Inc. Mid-West GM Truck Restoration Parts Supplier Your Key Parts, Auto Metal Direct, Dynacorn, and Goodmark dealer. like us @ www.facebook.com/BowtieTruckStop 1971 C-10 Suburban (Ochre) 1971 K-10 Suburban (Ochre) 1972 C-10 Suburban (Ochre) 1972 K-20 Suburban (Yellow- that just aint right!) Springfield, Minnesota 56087

05-02-2006, 08:58 PM	#16
stllookn Saving 1 truck at a time! Join Date: Aug 2001 Location: Kent, WA Posts: 6,463	Re: Big Block Cast Iron Exhaust Manifolds OK...sorry for the brain fade. Which of those sets provides the best low end to mid-range performance? I am guessing the ones Frank showed. I recall seeing a new set similar to the ones the da-burb showed (only they are ribbed without the machined surface) at the swap meet for about $100. I am not very excited about that expanded metal section in the stainless manifolds. It must be there for some reason. I know those are probably really expensive...WOW...$700 BIN! __________________ '68 C20 Longhorn 50th Anniversary 400/TH400 '68 C20 Longhorn 50th Anniversary 468/TH400w/buckets '72 C20 Halfhorn (Longhorn w/o cab and front clip) '69 Flxible Cruiser (look up ugly in the dictionary) Last edited by stllookn; 05-02-2006 at 10:12 PM.

05-03-2006, 03:53 AM	#17
4x4Poet Registered User Join Date: Nov 2004 Location: "Under Montana skies." Posts: 1,836	Re: Big Block Cast Iron Exhaust Manifolds Sanderson Headers sells cast iron BBC manifolds for some serious coin. They would be a big find at a swap meet. __________________ '71 GMC K20 Suburban, '71 GMC K10 Suburban, '72 Chevy C10 CST Suburban, '72 Chevy K20 clunker pickup.



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