454 into my 67 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

kgmunro · 01-25-2015, 10:09 PM

I have a question, I am putting a bbc in my 67 that had a SBC originally. I mounted the big block but the exhaust manifolds will not sit between the head and the frame. Since I took the xmember from my 70's 454 truck I tried those mounts and brackets, they will not line up at all now... What do I need to do to make this work? I figure one of my existing sets of mounts should work??

**68bowtie** · 01-26-2015, 12:40 AM

bump for you. hopefully someone else has done what you're attempting. pictures might help...

**michael bustamante** · 01-26-2015, 01:03 AM

What motor mounts and towers did you use? And which manifolds. Did you get the front end components from a mid 70shalf ton? Heavy half? 3/4 ton?

kgmunro · 01-26-2015, 07:44 AM

Everything is from a stock mid seventies half ton with a big block, I think all I can do is mount the lower brackets and set the engine in and level and center it and re drill holes for the mounts...

**68350** · 01-26-2015, 08:05 AM

Get a set of 68-72 BBC motor towers. There should be some listed on the parts board. And are trying to mount manifolds or headers?

67c10rustbuket · 01-26-2015, 08:31 AM

The flanges of the frame are wider on '67 models. The width was made thinner for exhaust clearance in '68 on when the BBC was available. You will have to trim the frame. I took measurements some time ago but don't remember how much it was I think like 3/8" I will look for that old thread..

67c10rustbuket · 01-26-2015, 08:56 AM

if you measure the frame top flange width of the '67 you will see it is 2.5" where the '68 up trucks are 1.8" (approx.). I cant find the thread showing it at the moment as I keep getting search errors. I would use the correct BBC motor stands and trim the frame for a proper factory fit.

**kitsbeach** · 01-26-2015, 03:04 PM

Quote:

Originally Posted by 67c10rustbuket

if you measure the frame top flange width of the '67 you will see it is 2.5" where the '68 up trucks are 1.8" (approx.). I cant find the thread showing it at the moment as I keep getting search errors. I would use the correct BBC motor stands and trim the frame for a proper factory fit.

Good info...only available on this site..!!

01-25-2015, 10:09 PM	#1
kgmunro Registered User Join Date: May 2009 Location: Brandon Manitoba Canada Posts: 342	454 into my 67 I have a question, I am putting a bbc in my 67 that had a SBC originally. I mounted the big block but the exhaust manifolds will not sit between the head and the frame. Since I took the xmember from my 70's 454 truck I tried those mounts and brackets, they will not line up at all now... What do I need to do to make this work? I figure one of my existing sets of mounts should work??

01-26-2015, 12:40 AM	#2
68bowtie Senior Member Join Date: Jan 2007 Location: Turlock, CA Posts: 8,504	Re: 454 into my 67 bump for you. hopefully someone else has done what you're attempting. pictures might help... __________________ I live in California, but identify as a Texan "If a job's worth doing, it's worth doing well" Survivor "Lil’ Mint" (67 c10 40k mile light green original paint) Project "C10 Fever" (68 factory black 396 swb) Project "Little Sister" (70 c10 blue original paint refresh) Project "Blue Bomb" (70 c30 blue original paint refresh) SOLD Project "Vitamin C" (71 c10 orange original paint refresh) SOLD

01-26-2015, 01:03 AM	#3
michael bustamante Senior Member Join Date: Sep 2007 Location: Albuquerque NM Posts: 7,836	Re: 454 into my 67 What motor mounts and towers did you use? And which manifolds. Did you get the front end components from a mid 70shalf ton? Heavy half? 3/4 ton? __________________ 1967custom

01-26-2015, 07:44 AM	#4
kgmunro Registered User Join Date: May 2009 Location: Brandon Manitoba Canada Posts: 342	Re: 454 into my 67 Everything is from a stock mid seventies half ton with a big block, I think all I can do is mount the lower brackets and set the engine in and level and center it and re drill holes for the mounts...

01-26-2015, 08:05 AM	#5
68350 Senior Member Join Date: Jan 2002 Location: Williston, ND Posts: 2,999	Re: 454 into my 67 Get a set of 68-72 BBC motor towers. There should be some listed on the parts board. And are trying to mount manifolds or headers? __________________ 68 Chevy CST/10, 50th Anniversary, 327/th400, 373 posi, buckets 68 GMC Shortbox Stepside, 402/th400, Tilt, Tach, Bucket Seats, 3.08 Positraction 69 Chevy Camaro SS, 383, 4 speed, positraction 70 Chevy El Camino SS396, Triple Black, 454/th400, Tach 70 Chevy Shortbox Stepside 4x4, 350/th350, Tilt, Tach, Cab Lights, Bumper Guards, Tow Hooks 70 Chevy 3/4 Longbox, 350/auto, 70k, SURVIVOR 71 Chevy Blazer, CST, 350/auto 71 GMC Sierra K2500, 454, 4 speed, 4.10 posi, 37s 71 Custom/30, Open Road, 350/th400, tilt 72 Chevy Shortbox Fleetside, 496 Stroker/th400, Tilt, Tach, Bucket Seats, 3.42 Posi 72 GMC Sierra Grande 2500. 427/th400, tilt, a/c, tool and stowage, buckets/console, 3.54 posi

01-26-2015, 08:31 AM	#6
67c10rustbuket Registered User Join Date: Apr 2011 Location: Mustang, Oklahoma Posts: 2,806	Re: 454 into my 67 The flanges of the frame are wider on '67 models. The width was made thinner for exhaust clearance in '68 on when the BBC was available. You will have to trim the frame. I took measurements some time ago but don't remember how much it was I think like 3/8" I will look for that old thread.. __________________ Dan <---(my name) 67 SWB C10 project "GEORGIA"-59 Brookwood 2dr wag...Next project-03 Tahoe 4x4 5.3 family ride-07 Hondur Accord, commuter car

01-26-2015, 08:56 AM	#7
67c10rustbuket Registered User Join Date: Apr 2011 Location: Mustang, Oklahoma Posts: 2,806	Re: 454 into my 67 if you measure the frame top flange width of the '67 you will see it is 2.5" where the '68 up trucks are 1.8" (approx.). I cant find the thread showing it at the moment as I keep getting search errors. I would use the correct BBC motor stands and trim the frame for a proper factory fit. __________________ Dan <---(my name) 67 SWB C10 project "GEORGIA"-59 Brookwood 2dr wag...Next project-03 Tahoe 4x4 5.3 family ride-07 Hondur Accord, commuter car



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