Headers for big block 402..........in a blazer - The 1947 - Present Chevrolet & GMC Truck Message Board Network

orangeuavol · 06-16-2004, 09:47 PM

Anyone done this? Already did the fit up of the big block but with stock exhaust manifolds. Trying to decide which way to go. Any help will be appreciated.

**Yukon Jack** · 06-17-2004, 09:59 AM

I am using Dynomax headers on my 454 in my K20 and they fit with a bit of massaging of the frame on the passenger side, drivers side fit perfectly. The ones I used are Dynomax 67-87 2WD BBC headers, part number 86022.

Here is a link to a bunch of pics of them installed.

http://drunken.b0xen.us/yukon/albums/headeralbum/

I would note I will be using a hydraulic clutch and it does look like the factory clutch linkage would be a problem.

orangeuavol · 06-17-2004, 11:37 AM

thanks for the info

**Yukon Jack** · 06-17-2004, 12:21 PM

Any pics of your firewall clearance? Did you move the engine forward or massage the firewall?

**Yukon Jack** · 06-17-2004, 12:24 PM

Oh, wait, I have some pics of your truck saved that show me what you did. Kind of similar mods that I had to make.

06-16-2004, 09:47 PM	#1
orangeuavol GO VOLS! Join Date: May 2001 Location: Knoxville, TN Posts: 724	Headers for big block 402..........in a blazer Anyone done this? Already did the fit up of the big block but with stock exhaust manifolds. Trying to decide which way to go. Any help will be appreciated. __________________ http://1972blazer.shutterfly.com/<= blazer build pics It's called golf because all the other four letter words were taken. It's easier to ask for forgiveness than for permission.

06-17-2004, 09:59 AM	#2
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,686	I am using Dynomax headers on my 454 in my K20 and they fit with a bit of massaging of the frame on the passenger side, drivers side fit perfectly. The ones I used are Dynomax 67-87 2WD BBC headers, part number 86022. Here is a link to a bunch of pics of them installed. http://drunken.b0xen.us/yukon/albums/headeralbum/ I would note I will be using a hydraulic clutch and it does look like the factory clutch linkage would be a problem. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14

06-17-2004, 11:37 AM	#3
orangeuavol GO VOLS! Join Date: May 2001 Location: Knoxville, TN Posts: 724	thanks for the info __________________ http://1972blazer.shutterfly.com/<= blazer build pics It's called golf because all the other four letter words were taken. It's easier to ask for forgiveness than for permission.

06-17-2004, 12:21 PM	#4
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,686	Any pics of your firewall clearance? Did you move the engine forward or massage the firewall? __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14

06-17-2004, 12:24 PM	#5
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,686	Oh, wait, I have some pics of your truck saved that show me what you did. Kind of similar mods that I had to make. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14



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