Big Block Headers

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Goggles Pisano

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Location
Lithia, FL
First Name
Greg
Truck Year
1976
Truck Model
C30
Engine Size
454
Hello All,
Hey making progress on my 76 and looking to purchase headers. running a 454. I did lower it with a 6-8 inch drop. I have been told that long tube heads will have ground clearance issues. Any recommendations on what header to use. Thanks
thanks
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Catbox

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Just Outside of Portland Oregon
First Name
Peter
Truck Year
1979
Truck Model
C20 Silverado Camper Special
Engine Size
461
I have a 3/4 ton 2wd SM465 with a 454 in it.
For headers we used a set for a 1968-72 Nova.
Only one tube needed a slight hammering on the driver side for extra Z-bar clearance.
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As you can see from the lower photos, there is no issue with ground clearance with the car headers.
They tuck way up in the chassis for me.
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Here I had to lean way down to see the collectors.
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These rusty ones were given to me by a friend that no longer needed them.
They will eventually be replaced by a new set that has thick flanges and are ceramic coated.
The flex piping will also be replaced when I put a new 3 inch system under there...
 

nvrenuf

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Mobile, Al.
First Name
John
Truck Year
1991
Truck Model
K5
Engine Size
454
I don't have any 2wd experience but I run Sanderson shortys on the 454 in my Blazer. For me they fit perfect with no mods but I've read where a guy with a 2wd frame (converted to 4wd) had to notch the rails a little.
 

bucket

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Andy
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K5 thru K30
Engine Size
350-454
Yep, '68+ Nova headers fit well, as do headers meant for '64-'72 Chevelle. Depending on brand, they may or may not be the same header.
 

Big Chip

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Michigan
First Name
Kevin
Truck Year
1979
Truck Model
C35
Engine Size
454
Hello All,
Hey making progress on my 76 and looking to purchase headers. running a 454. I did lower it with a 6-8 inch drop. I have been told that long tube heads will have ground clearance issues. Any recommendations on what header to use. Thanks
thanks
You must be registered for see images attach

Look at this thread, I just posted what I used on my truck with some pictures.
 

Turbo4whl

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Location
Downingtown, PA
First Name
Wayne
Truck Year
1974
Truck Model
Jimmy
Engine Size
350
Doug Thorley Tri-Y headers, Nickel/chrome for rust prevention or ceramic coating. Also available, extra, a Y pipe for a single cat and O2 sensor bung if you need to pass emission testing.

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http://www.dougthorleyheaders.com/gm--chevy-trucks-bbc&606&607&610

I don't know if they will clear the heavier A arms of the C30. No problems with my lowered 1982 C1500.
 

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