Engine mount towers and TBI SB exhaust manifolds - The 1947 - Present Chevrolet & GMC Truck Message Board Network

DirtyLarry · 10-28-2008, 03:39 PM

What a PITA. So, I got the TBI 5.7L almost dropped in my beater ’72 C20 (original small block truck) only to find the stock TBI exhaust manifolds won’t clear the engine mount towers to allow the engine to sit down on the mounts. I never had this problem playing engine swapperoo on any other 67-72’s in the past but then again I have never owned an original small block truck of this era until I got this ’72. So, off the bone yard I go tomorrow to find different towers.

After looking at my ’68 GMC big block truck I think BB towers would work, but the chances of me finding big block towers at the bone yard is probably slim.

My question is can you use the towers from a ’73-’87 2wd and use the newer style saddle type engine mounts instead? I would rather use the newer saddle type engine mounts anyway as the originals pretty much suck. It doesn’t matter if I have to move the engine for or aft as it is also getting a 700R4 which I need to redrill the trans mount holes anyway.

Thanks

**john** · 10-28-2008, 04:08 PM

I dont know what the tbi manifolds look like, but this is 68-71 BB towers with later manifolds.

DirtyLarry · 10-28-2008, 04:29 PM

Here is the 5.7L TBI engine and manifolds before I removed the 1990 style engine mount saddles. You’re manifolds look similar to mine so it looks like BB towers will work…..providing I can find a set.

DirtyLarry · 10-28-2008, 04:51 PM

See…..small block towers no workie with TBI exhaust manifolds.

It looks like the big block towers would work if I can find a set. This one is my 396 GMC

Again, does anybody know of ’73-’87 2wd towers will work in a ’67-’72 as I would rather use saddle mounts instead of pad mounts.

**john** · 10-28-2008, 05:09 PM

Larry have you read this FAQ on the later clamshell conversion? They look very similar to the 71-72 mounts.

http://67-72chevytrucks.com/vboard/s...d.php?t=128765

DirtyLarry · 10-28-2008, 05:16 PM

Nope, but I have now

Sorry…. I didn’t even think of looking there which I should have.

Thanks for the info John

Sinister · 10-28-2008, 05:42 PM

Here's some tubular mounts, don't know if they'd work or not though...
http://www.brotherstrucks.com/prodin...number=ESM6372

10-28-2008, 03:39 PM	#1
DirtyLarry Windy Corner of a Dirty Street Join Date: Jun 2003 Location: Pueblo West, Colorado Posts: 2,926	Engine mount towers and TBI SB exhaust manifolds What a PITA. So, I got the TBI 5.7L almost dropped in my beater ’72 C20 (original small block truck) only to find the stock TBI exhaust manifolds won’t clear the engine mount towers to allow the engine to sit down on the mounts. I never had this problem playing engine swapperoo on any other 67-72’s in the past but then again I have never owned an original small block truck of this era until I got this ’72. So, off the bone yard I go tomorrow to find different towers. After looking at my ’68 GMC big block truck I think BB towers would work, but the chances of me finding big block towers at the bone yard is probably slim. My question is can you use the towers from a ’73-’87 2wd and use the newer style saddle type engine mounts instead? I would rather use the newer saddle type engine mounts anyway as the originals pretty much suck. It doesn’t matter if I have to move the engine for or aft as it is also getting a 700R4 which I need to redrill the trans mount holes anyway. Thanks __________________ Current vehicle collection: 1978 Chevrolet K10, 8.1L, NV4500, NP205 1989 Chevrolet Suburban, 8.1L, NV4500, NP241 1993 Chevrolet C1500 Sportside, TBI 7.4L, 4L60E 2001 Chevrolet K2500HD, Ext Cab, SWB, 8.1L, ZF 6 speed 2014 Chevrolet Impala LTZ 3.6L Vortec 8.1L because life is too short to tolerate underpowered vehicles Instagram

10-28-2008, 04:08 PM	#2
john member #16 Join Date: Dec 1999 Location: Yuba City Ca. Posts: 3,618	Re: Engine mount towers and TBI SB exhaust manifolds I dont know what the tbi manifolds look like, but this is 68-71 BB towers with later manifolds. Attached Images __________________ john http://67-72chevytrucks.com/vboard/showgroups.php board vendors http://www.flickr.com/photos/1745471...7602865984234/

10-28-2008, 04:29 PM	#3
DirtyLarry Windy Corner of a Dirty Street Join Date: Jun 2003 Location: Pueblo West, Colorado Posts: 2,926	Re: Engine mount towers and TBI SB exhaust manifolds Here is the 5.7L TBI engine and manifolds before I removed the 1990 style engine mount saddles. You’re manifolds look similar to mine so it looks like BB towers will work…..providing I can find a set. __________________ Current vehicle collection: 1978 Chevrolet K10, 8.1L, NV4500, NP205 1989 Chevrolet Suburban, 8.1L, NV4500, NP241 1993 Chevrolet C1500 Sportside, TBI 7.4L, 4L60E 2001 Chevrolet K2500HD, Ext Cab, SWB, 8.1L, ZF 6 speed 2014 Chevrolet Impala LTZ 3.6L Vortec 8.1L because life is too short to tolerate underpowered vehicles Instagram

10-28-2008, 04:51 PM	#4
DirtyLarry Windy Corner of a Dirty Street Join Date: Jun 2003 Location: Pueblo West, Colorado Posts: 2,926	Re: Engine mount towers and TBI SB exhaust manifolds See…..small block towers no workie with TBI exhaust manifolds. It looks like the big block towers would work if I can find a set. This one is my 396 GMC Again, does anybody know of ’73-’87 2wd towers will work in a ’67-’72 as I would rather use saddle mounts instead of pad mounts. __________________ Current vehicle collection: 1978 Chevrolet K10, 8.1L, NV4500, NP205 1989 Chevrolet Suburban, 8.1L, NV4500, NP241 1993 Chevrolet C1500 Sportside, TBI 7.4L, 4L60E 2001 Chevrolet K2500HD, Ext Cab, SWB, 8.1L, ZF 6 speed 2014 Chevrolet Impala LTZ 3.6L Vortec 8.1L because life is too short to tolerate underpowered vehicles Instagram

10-28-2008, 05:09 PM	#5
john member #16 Join Date: Dec 1999 Location: Yuba City Ca. Posts: 3,618	Re: Engine mount towers and TBI SB exhaust manifolds Larry have you read this FAQ on the later clamshell conversion? They look very similar to the 71-72 mounts. http://67-72chevytrucks.com/vboard/s...d.php?t=128765 __________________ john http://67-72chevytrucks.com/vboard/showgroups.php board vendors http://www.flickr.com/photos/1745471...7602865984234/

10-28-2008, 05:16 PM	#6
DirtyLarry Windy Corner of a Dirty Street Join Date: Jun 2003 Location: Pueblo West, Colorado Posts: 2,926	Re: Engine mount towers and TBI SB exhaust manifolds Nope, but I have now Sorry…. I didn’t even think of looking there which I should have. Thanks for the info John __________________ Current vehicle collection: 1978 Chevrolet K10, 8.1L, NV4500, NP205 1989 Chevrolet Suburban, 8.1L, NV4500, NP241 1993 Chevrolet C1500 Sportside, TBI 7.4L, 4L60E 2001 Chevrolet K2500HD, Ext Cab, SWB, 8.1L, ZF 6 speed 2014 Chevrolet Impala LTZ 3.6L Vortec 8.1L because life is too short to tolerate underpowered vehicles Instagram

10-28-2008, 05:42 PM	#7
Sinister Between Trucks... Join Date: Mar 2002 Location: Los Angeles, CA. Posts: 3,830	Re: Engine mount towers and TBI SB exhaust manifolds Here's some tubular mounts, don't know if they'd work or not though... http://www.brotherstrucks.com/prodin...number=ESM6372 __________________ Beat it to fit, Paint it to match...

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