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#91013146
Speedway Small Block Chevy Crossover Headers, Raw Finish
- 1 3/4" SB Chevy
- Not 180 degree header
- Standard port
$346.99
/pair
In Stock
Quantity
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Product Summary
Crossover Header Tube Type, Square Exhaust Port Shape
- 1 3/4" SB Chevy
- Not 180 degree header
- Standard port
- Includes gaskets and header bolts
Key Specs
| MFG. Part # | 91013146 |
| Header Tube Type | Crossover |
| Exhaust Port Shape | Square |
| Flange Style | Standard |
| Primary Tube Diameter | 1-3/4" |
Need To Know
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Speedway Motors 91013146 Details
Speedway small block Chevy crossover headers (not a 180° header). Good for use with mufflers.
- 1-3/4" primaries
- 3-1/2" collector
- Standard port
- Bare steel finish
- Includes gaskets and header bolts
Item Details
3-1/2" CollectorCharts
Header Dimension Chart (JPG)
Header Dimension Chart (JPG)
Guides & Documents
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 91013146 Specifications
Speedway Motors 91013146 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 91013146 |
| Brand | Speedway Motors |
| Header Tube Type | Crossover |
| Exhaust Port Shape | Square |
| Flange Style | Standard |
| Primary Tube Diameter | 1-3/4" |
| Material Type | Steel |
| Color | Natural |
| Weld-Up | No |
| Collector Diameter | 3-1/2 Inch |
| Finish | Raw |
| Hardware Included | Yes |
| Gasket(s) Included | Yes |
| Collector Reducers Included | No |
| Collector Attachment Type | Slip fit |
| GENERAL | |
| Sold in Quantity | Pair |
| Collector Length | 8" |
| Flange Thickness | 0.31" |
| Port Height | 1.75" |
| Port Width | 1.38" |
| Drivers Side Dimension A | 6.3" |
| Drivers Side Dimension B | 7" |
| Drivers Side Dimension C | 33.75" |
| Passenger Side Dimension A | 6.95" |
| Passenger Side Dimension B | 9.32" |
| Passenger Side Dimension C | 41" |
Ratings & Reviews
4.9
15 Reviews
Customers highly recommend Speedway's headers due to their high quality, practicality, and exceptional fit. These headers are praised as being the best on the market for their race car fitting and are celebrated for boosting horsepower. Additionally, their innovative design ensures clearance to prevent potential damage and reduces heat buildup, effectively increasing comfort during use. Numerous customers confirm successful use on a variety of vehicles. Despite occasional hardware hiccups, the product's abilities and affordable price make it a preferred choice over competing products.
Ratings & Reviews
4.9
15 Reviews
Customers highly recommend Speedway's headers due to their high quality, practicality, and exceptional fit. These headers are praised as being the best on the market for their race car fitting and are celebrated for boosting horsepower. Additionally, their innovative design ensures clearance to prevent potential damage and reduces heat buildup, effectively increasing comfort during use. Numerous customers confirm successful use on a variety of vehicles. Despite occasional hardware hiccups, the product's abilities and affordable price make it a preferred choice over competing products.
4.9
15 reviews
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i would buy it again
4.0
a year ago
spankey
bowling green ohio
Verified
they held up for what i needed them to to and worked great
Would Recommend
Yes definitely
5.0
3 years ago
Vinnie
Harris ny
Verified
Speedway is my go to race part store
Probably would buy again.
4.0
3 years ago
Eternal racer
NorCal
Verified
Fit as well as can be expected. Had to remove one roll bar mount and redo that. Warped manifold flanges will take a little more to fix and that was unexpected.
Would Recommend
great product
5.0
6 years ago
WILDMAN
HANOVER INDIANA
Verified
best on the market
Would Recommend
I will purchase another soon for my race car!!
5.0
7 years ago
Chief
Indianapolis Indiana
Verified
I use this every product on everything I own.
Would Recommend
Great fit tucked in the right places easy to install.
5.0
8 years ago
D44 Vintage
Milton Florida
Verified
Used to run down and outs open ended these headers helped on restarts from the time we put them on definitely make HP
Would Recommend




Headers over the top
5.0
8 years ago
Charlie Boy
Michigan
Verified
Just missing the bolts, but I can order them seperate.
Would Recommend
Fit great
5.0
9 years ago
Sr. Racer
Walloon lake
Verified
I haven't ran them yet . But they fit like a glove
Would Recommend
Great product at a affordable price
5.0
9 years ago
Blair
Mt.Airy Georgia
Verified
Fit with out any problems
Would Recommend


Thankful I found these
5.0
9 years ago
Gotta love racing
Michigan
Verified
Very pleased to have found this product I had been looking for a good while to find the right headers for my husband's racecar that would fit how they needed to which was a very difficult task. Reasonable price and fit perfectly and the car sounds amazing !!
Would Recommend
Showing 10 of 15 reviews
Questions & Answers
Questions & Answers
9 Questions • 10 Answers
Can you guys get this header with 1 5/8 tubes
by Justin
• 9 years ago
1 answer
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will these clear a powerglide trans?
by tulsa
• 10 years ago
1 answer
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Will these headers fit in a Lefthander chassis?
by Johnny
• 10 years ago
1 answer
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Will these fit vortec heads?
by Duece
• 10 years ago
1 answer
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Will it work on metric chassis Monte Carlo w th350 trans ? In know that in have to cut firewall for header to go in
by deaf racer
• 11 years ago
1 answer
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Will these clear everything? Such as the foot box the midplate chassis tubes etc on a 02 smileys modified running a Saginaw trans
by Rowdym7
• 11 years ago
1 answer
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do these come down any by the ports
by daddydave
• 12 years ago
1 answer
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Will these work with a powerglide and a flexplate safety shield?
by JMChevy
• 12 years ago
1 answer
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Primary Tube Length What is the length (or range of lengths) of the primary tubes on this set of headers?
by 53ProStock
• 13 years ago
2 answers
View Answers
9 of 9 questions shown

