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73-87 Chevy _ GMC Trucks => Performance => Exhaust => Topic started by: Fastduramax on May 19, 2022, 05:22:50 PM

Title: Big Block 4X4 Headers
Post by: Fastduramax on May 19, 2022, 05:22:50 PM

So, I'm dropping a 572 AFR head BBC in my 86 4X4 shorty and having a real hard time finding headers, has anyone gotten into this project and have any suggestions?

Title: Re: Big Block 4X4 Headers
Post by: ehjorten on May 20, 2022, 09:02:31 AM

I had Doug Thorley Tri-Y headers in my 1991 V3500 with the 454. They fit just fine. I believe they were THY-304Y-C.

Title: Re: Big Block 4X4 Headers
Post by: JohnnyPopper on May 20, 2022, 10:52:37 AM

When you git her done, be careful...

So much power in a shorty... 8)

Title: Re: Big Block 4X4 Headers
Post by: Fastduramax on May 20, 2022, 04:05:57 PM

 8)Haha ! Yup I will surely break a few things ! It may look like my Avatar I cant get right side up !  >:(

Title: Re: Big Block 4X4 Headers
Post by: Fastduramax on May 23, 2022, 05:59:23 PM

Thanks Eric but Doug's aren't an option at the moment first off not available, second they are backlogged and not taking custom orders and third they are only 1-3/4" much to restrictive for a 572 I have to get in the 2" range this sucks !