Off the shelf dual exhaust for 4WD - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**68ls1** · 08-16-2021, 03:03 AM

I have searched this topic, but most threads are quite a few years old.
Is there anyone as per title, selling a bolt on dual exhaust to suit SBC in 4WD 1st gen Blazer?
I believe Heartthrob Exhaust offer one, Part No 4159M. Are there others? Has any used a 2WD kit or a K Series one that has worked with some modifications?

If I could have everything I wanted, it would be stainless, mandrel, 2.5" engines pipes, muffler 2.5" in and 2.25" out, with pipes after muffler 2.25" and rear exit.

My truck currently has headers, and I would like to switch to cast iron ram horns. Can anyone recommend ones that fit the 4WD, or will any center dump work?
These are local to me, https://www.ebay.com.au/itm/CAL-CUST...YAAOSwd7RdPk5p

**kwmech** · 08-17-2021, 04:41 PM

Center dump rams into a single 3''

**truckster** · 08-17-2021, 10:00 PM

I got Corvette-style 2.5 center-dump rams horns from Speedway motors. They fit just fine.

**68ls1** · 08-17-2021, 11:51 PM

Quote:

Originally Posted by truckster

I got Corvette-style 2.5 center-dump rams horns from Speedway motors. They fit just fine.

Excellent news, do they look like the ones I linked?

**truckster** · 08-18-2021, 10:29 PM

They look very similar... It's hard to tell from the images in the listing you linked.

08-16-2021, 03:03 AM	#1
68ls1 Senior Member Join Date: Jan 2008 Location: Melbourne, Victoria, Australia Posts: 217	Off the shelf dual exhaust for 4WD I have searched this topic, but most threads are quite a few years old. Is there anyone as per title, selling a bolt on dual exhaust to suit SBC in 4WD 1st gen Blazer? I believe Heartthrob Exhaust offer one, Part No 4159M. Are there others? Has any used a 2WD kit or a K Series one that has worked with some modifications? If I could have everything I wanted, it would be stainless, mandrel, 2.5" engines pipes, muffler 2.5" in and 2.25" out, with pipes after muffler 2.25" and rear exit. My truck currently has headers, and I would like to switch to cast iron ram horns. Can anyone recommend ones that fit the 4WD, or will any center dump work? These are local to me, https://www.ebay.com.au/itm/CAL-CUST...YAAOSwd7RdPk5p

08-17-2021, 04:41 PM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,634	Re: Off the shelf dual exhaust for 4WD Center dump rams into a single 3''

08-17-2021, 10:00 PM	#3
truckster Senior Member Join Date: Jan 2001 Location: Orem, Utah Posts: 7,977	Re: Off the shelf dual exhaust for 4WD I got Corvette-style 2.5 center-dump rams horns from Speedway motors. They fit just fine. __________________ I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson

08-18-2021, 10:29 PM	#5
truckster Senior Member Join Date: Jan 2001 Location: Orem, Utah Posts: 7,977	Re: Off the shelf dual exhaust for 4WD They look very similar... It's hard to tell from the images in the listing you linked. __________________ I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson



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