Vortec Header Questions? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*72longbed* · 06-05-2011, 09:00 AM

Here's one that I need some help on please,
I have a Vortec head engine in my 72 K20. I'm running Hedman #69238 hedders. The exhaust ports do not match my cylinder heads ... restricted by over a 1/4 inch on the "width" of each exhaust port. The height of each port is good. I think there is a solution here, and it may be that there is a manufacturer that makes a 'Vortec' header for our trucks?

Does anybody have experience with this situation, or know of a header that matches Vortec ports AND fits our trucks?

Thanks for your help.

72longbed

gysgtc · 06-06-2011, 05:35 AM

I need to know also.

**Captainfab** · 06-06-2011, 11:04 PM

The number 6938 is an incomplete part number for Hedman Hedders, so I don't know just what you have. Are the primary tubes 1-1/2"? Take a look at Hedman #69230, they have 1-5/8" primaries. I haven't had an issue with 1-5/8" primaries on Vortec heads. They are supposed to fit the 4x4's well, and they don't hang down very far.

*72longbed* · 06-07-2011, 04:15 PM

Sorry ... that's # 69238 ... and you won't find it in their catalog ... it's apparently no longer made. My primaries ar 1 5/8". The problem is in the width of each header opening, not the heighth.

Thanks.

06-05-2011, 09:00 AM	#1
72longbed Account Suspended Join Date: Jun 2003 Location: PA Posts: 1,411	Vortec Header Questions? Here's one that I need some help on please, I have a Vortec head engine in my 72 K20. I'm running Hedman #69238 hedders. The exhaust ports do not match my cylinder heads ... restricted by over a 1/4 inch on the "width" of each exhaust port. The height of each port is good. I think there is a solution here, and it may be that there is a manufacturer that makes a 'Vortec' header for our trucks? Does anybody have experience with this situation, or know of a header that matches Vortec ports AND fits our trucks? Thanks for your help. 72longbed Last edited by 72longbed; 06-07-2011 at 04:12 PM.

06-06-2011, 05:35 AM	#2
gysgtc Registered User Join Date: Apr 2010 Location: Sutton, WV Posts: 340	Re: Vortec Header Questions? I need to know also.

06-06-2011, 11:04 PM	#3
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: Vortec Header Questions? The number 6938 is an incomplete part number for Hedman Hedders, so I don't know just what you have. Are the primary tubes 1-1/2"? Take a look at Hedman #69230, they have 1-5/8" primaries. I haven't had an issue with 1-5/8" primaries on Vortec heads. They are supposed to fit the 4x4's well, and they don't hang down very far. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

06-07-2011, 04:15 PM	#4
72longbed Account Suspended Join Date: Jun 2003 Location: PA Posts: 1,411	Re: Vortec Header Questions? Sorry ... that's # 69238 ... and you won't find it in their catalog ... it's apparently no longer made. My primaries ar 1 5/8". The problem is in the width of each header opening, not the heighth. Thanks.

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