5.3 exhaust manifold in 47-54 ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ls1man · 01-11-2014, 10:03 PM

What type of exhaust manifold will work for ls engine in a 47-54 truck?

dwcsr · 01-11-2014, 10:43 PM

Corvette Stainless steel sheet metal manifolds. first choice

A Cadillac CTS-V 6.2 L left and a 07 Trailblazer right last choice

Don't bother with GTO Camaro or a trailblazer SS left side.

Tru rams from Speedway look like they would work but they are pricey

Angryman117 · 01-12-2014, 12:55 AM

Running C5 Vette manifolds and modified front exhaust in mine. Have the pics in my build thread.

**LEEVON** · 01-12-2014, 12:58 AM

I've got Hooker LS block hugger shorties, fit nice. They dump center, have to make a tight radius to the rear other than that no issues.

BlueJeep · 01-12-2014, 01:17 AM

I've got a 2003 Suburban manifold on the passenger side and a 2002 Camaro manifold on the driver's side, but I have an s10 frame too.

solidaxel · 01-12-2014, 09:13 AM

Quote:

Originally Posted by dwcsr

Corvette Stainless steel sheet metal manifolds. first choice

A Cadillac CTS-V 6.2 L left and a 07 Trailblazer right last choice

Don't bother with GTO Camaro or a trailblazer SS left side.

Tru rams from Speedway look like they would work but they are pricey

Thanks Dave for the info !!

Just bought some Camaro manifolds, should have read this first !!!!

Now I am looking for Corvette manifolds !

ls1man · 01-12-2014, 10:22 AM

I have 3 sets of corvette manifolds both c5 and c6 neither will fit without touching, maybe i should raise the engine up a little more but in not sure what the maximum height can be. Also have mustang ii suspension so the steering shaft is a big problem to solve.

Thanks

solidaxel · 01-12-2014, 10:27 AM

Quote:

Originally Posted by ls1man

I have 3 sets of corvette manifolds both c5 and c6 neither will fit without touching, maybe i should raise the engine up a little more but in not sure what the maximum height can be. Also have mustang ii suspension so the steering shaft is a big problem to solve.

Thanks

Can you take some pictures so I can see the difference.
I sure like the pic that Dave sent with his Corvette manifolds with the center collector

dwcsr · 01-12-2014, 10:44 AM

Quote:

Originally Posted by solidaxel

Can you take some pictures so I can see the difference.
I sure like the pic that Dave sent with his Corvette manifolds with the center collector

The center collector corvette that are very short didn't fit. I would have had to notch the frame. The corvette that are long collector looked good but my engine mounts were is a non stock position so they didn't work for me. in picture B the center one looked like it would work the bottom one was a CTS-V and that dumped into the middle of the rail. it was fine on the other side.

C6 corvette didn't fit either they dump to far into the rail. LS1 LS6 5.7L 97-00 looked good but to pricey to buy to find out

ls1man · 01-12-2014, 10:50 AM

Quote:

Originally Posted by solidaxel

Can you take some pictures so I can see the difference.
I sure like the pic that Dave sent with his Corvette manifolds with the center collector

I will post some pics after while.

Thanks

not2oldchevy · 01-12-2014, 06:30 PM

Early c5 on mine they fit perfect with no mods.

ls1man · 01-12-2014, 08:43 PM

heres a pic of the corvette manifolds i have.

dwcsr · 01-12-2014, 09:21 PM

So none of those fit? You have a pile like I do. I have seen the first one on a AD truck with a 5.3 so that's why I said they should. How far in the frame does the engine sit?.

The picture below is a CTS-V on the left and a SS Trailblazer on the right. The problem with this setup is the CTS has a huge 3" opening and a bolt pattern that 4-5/8 center to center on the studs and the TBSS Manifold is 2.5 so I have some fabbing to do on it.

not2oldchevy · 01-13-2014, 07:41 PM

Quote:

Originally Posted by ls1man

heres a pic of the corvette manifolds i have.

The one you have on the left is what I have on mine with no issues.

ls1man · 01-13-2014, 07:56 PM

Quote:

Originally Posted by not2oldchevy

The one you have on the left is what I have on mine with no issues.

How high is your balancer above your original crossmember? My engine may be to low.

ls1man · 01-13-2014, 09:14 PM

Quote:

Originally Posted by dwcsr

So none of those fit? You have a pile like I do. I have seen the first one on a AD truck with a 5.3 so that's why I said they should. How far in the frame does the engine sit?.

The picture below i

s a CTS-V on the left and a SS Trailblazer on the right. The problem with this setup is the CTS has a huge 3" opening and a bolt pattern that 4-5/8 center to center on the studs and the TBSS Manifold is 2.5 so I have some fabbing to do on it.

The balancer is 1and 3/4 inch above the original crossmember.

01-11-2014, 10:03 PM	#1
ls1man Registered User Join Date: Oct 2013 Location: norman okla Posts: 49	5.3 exhaust manifold in 47-54 ? What type of exhaust manifold will work for ls engine in a 47-54 truck?

01-11-2014, 10:43 PM	#2
dwcsr Hollister Road Co. Join Date: Apr 2005 Location: Houston Posts: 6,131	Re: 5.3 exhaust manifold in 47-54 ? Corvette Stainless steel sheet metal manifolds. first choice A Cadillac CTS-V 6.2 L left and a 07 Trailblazer right last choice Don't bother with GTO Camaro or a trailblazer SS left side. Tru rams from Speedway look like they would work but they are pricey

01-12-2014, 12:55 AM	#3
Angryman117 Registered User Join Date: Jul 2013 Location: VAFB, CA Posts: 227	Re: 5.3 exhaust manifold in 47-54 ? Running C5 Vette manifolds and modified front exhaust in mine. Have the pics in my build thread. __________________ Angryman117's 47 Chevy Build 89 Silverado Z71 LS Swap (sold)

01-12-2014, 12:58 AM	#4
LEEVON Moderator Join Date: Jul 2006 Location: Ozark, MO Posts: 4,888	Re: 5.3 exhaust manifold in 47-54 ? I've got Hooker LS block hugger shorties, fit nice. They dump center, have to make a tight radius to the rear other than that no issues. __________________ '20 Silverado Trail Boss ~ '17 Tahoe ~ '79 K15 Sierra Grande ~ '76 Blazer 2wd ~ '71 Cheyenne swb ~ '55 Pontiac Safari ~'50 3100 bagged ~ '80 Wife ~ Late model kids

01-12-2014, 01:17 AM	#5
BlueJeep Registered User Join Date: Mar 2008 Location: Waukee, Iowa Posts: 1,608	Re: 5.3 exhaust manifold in 47-54 ? I've got a 2003 Suburban manifold on the passenger side and a 2002 Camaro manifold on the driver's side, but I have an s10 frame too. __________________ build threads: 86 Suburban 88 Jeep 6.0 swap 49 Chevy truck 54 Chevy wagon 86 Suburban lowered 4/6 54 Chevy wagon 49 Chevy/s10 mix 88 Jeep Wrangler rockcrawler

01-12-2014, 10:22 AM	#7
ls1man Registered User Join Date: Oct 2013 Location: norman okla Posts: 49	Re: 5.3 exhaust manifold in 47-54 ? I have 3 sets of corvette manifolds both c5 and c6 neither will fit without touching, maybe i should raise the engine up a little more but in not sure what the maximum height can be. Also have mustang ii suspension so the steering shaft is a big problem to solve. Thanks

01-12-2014, 06:30 PM	#11
not2oldchevy Registered User Join Date: Sep 2009 Location: east tennessee Posts: 158	Re: 5.3 exhaust manifold in 47-54 ? Early c5 on mine they fit perfect with no mods.

01-12-2014, 08:43 PM	#12
ls1man Registered User Join Date: Oct 2013 Location: norman okla Posts: 49	Re: 5.3 exhaust manifold in 47-54 ? heres a pic of the corvette manifolds i have.

01-12-2014, 09:21 PM	#13
dwcsr Hollister Road Co. Join Date: Apr 2005 Location: Houston Posts: 6,131	Re: 5.3 exhaust manifold in 47-54 ? So none of those fit? You have a pile like I do. I have seen the first one on a AD truck with a 5.3 so that's why I said they should. How far in the frame does the engine sit?. The picture below is a CTS-V on the left and a SS Trailblazer on the right. The problem with this setup is the CTS has a huge 3" opening and a bolt pattern that 4-5/8 center to center on the studs and the TBSS Manifold is 2.5 so I have some fabbing to do on it. Attached Images

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