6 bolt block and headers - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

_Onyx_Wolf_ · 12-13-2020, 07:28 PM

Okay guys getting closer to getting my dart shp block and I need some help on figuring out what headers will work with a 6 bolt block. I will be going with AGP twins later on so it’s either stock manifolds or shorties. I already have some aftermarket prc 260 6 bolt heads and will be using arp head studs. Would the stock manifolds work with a little modification? Or am I gonna have to fork over the extra cash for some shorties like arh or Doug thorley headers?

Omega · 12-13-2020, 08:17 PM

Huron Speed make manifolds which clear the 6-bolt heads. Stock position outlets which will work with the AGP kit.

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blake-b · 12-14-2020, 04:06 PM

Yes, the stock manifolds will work with modifications. They need clearanced and welded back up where the 6th bolt holt would hit them. Basically, grind enough clearance in which means you will make a hole, then have the hole welded closed.

_Onyx_Wolf_ · 12-15-2020, 08:48 AM

Okay thanks guys!

_Onyx_Wolf_ · 12-15-2020, 09:03 AM

As far as design and flow go which header would be good for twins? Huron speed headers or arh?

blake-b · 12-15-2020, 11:26 AM

Whichever one you like best. If I recall, I think the ARH are equal length but I don't know how that plays out in the real world.

Southern Comfort · 12-15-2020, 12:15 PM

Those equal length headers will take up space if that’s any concern. Old school was equal length offered more to N/A motors than forced induction.

Black_SS10 · 12-16-2020, 07:21 PM

I got a set of BBK shorties that I ceramic coated. Going on my TT TMS 427.

_Onyx_Wolf_ · 12-18-2020, 09:56 PM

Quote:

Originally Posted by Black_SS10

I got a set of BBK shorties that I ceramic coated. Going on my TT TMS 427.

Nice lmk how they work out for you! Can those bbks clear a 6 bolt head setup?

scv_guy · 12-19-2020, 06:58 PM

Quote:

Originally Posted by _Onyx_Wolf_

Nice lmk how they work out for you! Can those bbks clear a 6 bolt head setup?

I have a set of Huronspeed shorty headers that clear 6 bolt heads. I had them on my LSX427, they are ceramic coated. I'm going to be listing them for sale. The turbo kit is for sale also.

Black_SS10 · 12-19-2020, 07:23 PM

Quote:

Originally Posted by _Onyx_Wolf_

Nice lmk how they work out for you! Can those bbks clear a 6 bolt head setup?

Awhile ago I did a quick mock up and they seem to clear fine. Now you got me thinking and I may need to recheck. Lol

TITANSFAN · 12-19-2020, 07:24 PM

Quote:

Originally Posted by scv_guy

I have a set of Huronspeed shorty headers that clear 6 bolt heads. I had them on my LSX427, they are ceramic coated. I'm going to be listing them for sale. The turbo kit is for sale also.

Do these have the recessed area where the fire ring fits inside the manifold at the collector?

scv_guy · 12-19-2020, 07:40 PM

Quote:

Originally Posted by TITANSFAN

Do these have the recessed area where the fire ring fits inside the manifold at the collector?

No these are a flat flange

JMI · 12-22-2020, 10:02 AM

I have been running the ARH for 4 seasons now.
No issues,but you would need ceramic spark plug wires,or you will burn up a wire or 2 pretty easy.

12-13-2020, 07:28 PM	#1
_Onyx_Wolf_ Onyx_Z7 <— Instagram Drives: 2013 2ss 1le Join Date: Aug 2014 Location: Delaware Posts: 634	6 bolt block and headers Okay guys getting closer to getting my dart shp block and I need some help on figuring out what headers will work with a 6 bolt block. I will be going with AGP twins later on so it’s either stock manifolds or shorties. I already have some aftermarket prc 260 6 bolt heads and will be using arp head studs. Would the stock manifolds work with a little modification? Or am I gonna have to fork over the extra cash for some shorties like arh or Doug thorley headers?

12-15-2020, 09:03 AM	#5
_Onyx_Wolf_ Onyx_Z7 <— Instagram Drives: 2013 2ss 1le Join Date: Aug 2014 Location: Delaware Posts: 634	As far as design and flow go which header would be good for twins? Huron speed headers or arh? Attached Images

12-16-2020, 07:21 PM	#8
Black_SS10 SomeguyK Drives: 2010 Black 2SS/RS Join Date: Nov 2014 Location: FL Posts: 1,947	I got a set of BBK shorties that I ceramic coated. Going on my TT TMS 427. __________________ TMS 427, Dart iron Block, Forged assembly, Frankenstien heads, AGP TT 62/62 BB turbo's, AGP/Fore triple fuel system, Tilton clutch, Holley 1 7/8 shorties, Technostalgia tail lights,Oracle, Aeroforce, MGW shifter,Flowmaster, Pegasus subframe bushings,BMR trailing & toe arms,Z28 UCA bushings,Zl1 rear sway bar,Prothane,BMR,Goodridge brake lines,Ridetech HQ coilovers,3.91,Trutrac,billet caps,DSS axles,HE offest,built TR6060,1LE diffuser,Havoc spoiler,SSclones,20in MRR 017, Pirelli P Zero, Nitto NT555RII More to come.

12-22-2020, 10:02 AM	#14
JMI Drives: Red Jewel Camaro SS Join Date: Mar 2014 Location: East Coast Posts: 392	I have been running the ARH for 4 seasons now. No issues,but you would need ceramic spark plug wires,or you will burn up a wire or 2 pretty easy. __________________ BTR LSX388,AGP Twin Turbo.6L90,GM 9.9" Diff.Fore Innovations Level 4 fuel system.Great fuel economy !!!! 1xxx RWHP

12-13-2020, 08:17 PM	#2
Omega Drives: G8 Join Date: Mar 2012 Location: NJ Posts: 251	Huron Speed make manifolds which clear the 6-bolt heads. Stock position outlets which will work with the AGP kit. Sent from my Pixel 4 XL using Tapatalk

12-14-2020, 04:06 PM	#3
blake-b Drives: 2009 ZR1 Join Date: May 2010 Location: KCMO Posts: 3,205	Yes, the stock manifolds will work with modifications. They need clearanced and welded back up where the 6th bolt holt would hit them. Basically, grind enough clearance in which means you will make a hole, then have the hole welded closed.

12-15-2020, 08:48 AM	#4
_Onyx_Wolf_ Onyx_Z7 <— Instagram Drives: 2013 2ss 1le Join Date: Aug 2014 Location: Delaware Posts: 634	Okay thanks guys!

12-15-2020, 11:26 AM	#6
blake-b Drives: 2009 ZR1 Join Date: May 2010 Location: KCMO Posts: 3,205	Whichever one you like best. If I recall, I think the ARH are equal length but I don't know how that plays out in the real world.

12-15-2020, 12:15 PM	#7
Southern Comfort No Tags/Habitual Violator Drives: 2012 SIM 2SS/RS & z71 Join Date: Sep 2011 Location: North Georgia Posts: 2,379 View My Garage	Those equal length headers will take up space if that’s any concern. Old school was equal length offered more to N/A motors than forced induction.