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#UP220686
55-57 CHEVY LS1 HEADER-AHC
- Blemished
- Item has cosmetic imperfections such as scuffs, dents, bends, or similar marks. The item functions as originally intended but is discounted due to these blemishes. Please review the photos and description for more information
- Feature 1 3/4" primary tubes and 3" collectors
$429.99
/pair
In Stock
$503.99
Save $74.00
Order soon, only 1 left in stock!
Item has cosmetic imperfections such as scuffs, dents, bends, or similar marks. The item functions as originally intended but is discounted due to these blemishes. Please review the photos and description for more information.
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Product Summary
Mid-Length Header Tube Type, Round Exhaust Port Shape
- Blemished
- Item has cosmetic imperfections such as scuffs, dents, bends, or similar marks. The item functions as originally intended but is discounted due to these blemishes. Please review the photos and description for more information
- Feature 1 3/4" primary tubes and 3" collectors
- Oxygen sensor bung welded to collectors
- Armor Hot Coat® is a Speedway Motors custom ceramic heat proof coating that will keep the finish of these headers looking great for years to come
Key Specs
| MFG. Part # | 930C46H |
| Garage Sale Type | Blemished |
| Header Tube Type | Mid-Length |
| Exhaust Port Shape | Round |
| Flange Style | Standard |
Need To Know
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855.313.9176Ineligible for Return
Contains items that cannot be returned
Speedway Motors 930C46H Details
Speedway Motors 930C46H Details

This is Garage Sale priced because it is an open box item and returned. PART IS SCRATCHED/SCUFFED. INSTALLATION MARKS FROM PREVIOUS CUSTOMER ATTEMPT AT INSTALL
NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS
These headers allow you to install the popular LS1 engine in your 1955-1957 Chevy car. They feature 1-3/4" primary tubes and 3" collectors. Oxygen sensor bung welded to collectors. These ceramic coated headers provide superior performance and durability.
Note: These headers will not clear motor mount part number 720-4501 and 916-55571.
Charts
Header Dimension Chart (JPG)
CARB Warning
For race/ off road use or for use on pre-1966 vehicles.
CARB Warning
For race/ off road use or for use on pre-1966 vehicles.
Speedway Motors 930C46H Specifications
Speedway Motors 930C46H Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 930C46H |
| Brand | Speedway Motors |
| Garage Sale Type | Blemished |
| Header Tube Type | Mid-Length |
| Exhaust Port Shape | Round |
| Flange Style | Standard |
| Primary Tube Diameter | 1-3/4" |
| Material Type | Steel |
| Color | Silver |
| Weld-Up | No |
| Collector Diameter | 3 Inch |
| Finish | Ceramic Coated |
| Hardware Included | Yes |
| Gasket(s) Included | Yes |
| Collector Reducers Included | Yes |
| Collector Reducer Exit Diameter | 2.5" |
| Collector Attachment Type | 3-bolt flange |
| GENERAL | |
| Sold in Quantity | Pair |
| Notes | Includes a pair of reducers (3.00" to 2.50") |
| Collector Length | 7" |
| Flange Thickness | .31" |
| Port Height | 1.73" |
| Port Width | 1.73" |
| Drivers Side Dimension A | 8.25" |
| Drivers Side Dimension B | 15.5" |
| Drivers Side Dimension C | 23.75" |
| Passenger Side Dimension A | 7.95" |
| Passenger Side Dimension B | 15.05" |
| Passenger Side Dimension C | 24.13" |