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#42511110FLT
Flowtech 11110FLT Long Tube Header, 1.5 Inch x 3 Inch
$268.95
/set
Factory Shipped
$299.95
Save $31.00
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Product Summary
Long Tube Header Tube Type, Round Exhaust Port Shape
Rebates Available
See rebate detailsKey Specs
| MFG. Part # | 11110FLT |
| Header Tube Type | Long Tube |
| Exhaust Port Shape | Round |
| Flange Style | Standard |
| Primary Tube Diameter | 1-5/8" |
Need To Know
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855.313.9176Quick and Easy Returns
Return PolicyFlowtech Exhaust 11110FLT Details
Flowtech Exhaust 11110FLT Details
Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5/16" flanges with sealing rings for a leak-free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat resistant black paint for a stealthy appearance.
- Fuel Economy From The Engine
- Leak Test For Max Performance
- Mandrel-Formed Power Plenum
- Leakproof O-Ringed Port Seals
- Include All Mounting Hardware
- Constructed of .049 cold roll flash mild steel tubing
Application
1964 Chevy Chevy II
1965 Chevy Chevy II
1966 Chevy Chevy II
1967 Chevy Chevy II
Charts
Rebates
Holley October Promo 10% Off Select Parts Sale
Holley's October Promo 10% Off Select Parts Sale, running from September 28, 2026, through November 1, 2026. For a limited time, customers can save up to 10% off on select Holley parts, making it the perfect opportunity to upgrade your ride with premium Holley branded parts including Holley, Brawler, Quick Fuel, Leg Wheels, Rev Wheels, Rocket Racing, Flowtech, Edge, Racequip, Apr and Dinan. Purchases must be made between September 28, 2026, through November 1, 2026. This limited-time offer applies to qualifying Holley branded parts purchased during the promotional period. Following the promotion, these parts will revert back to standard pricing.
CARB Warning
For race/ off road use only
CARB Warning
For race/ off road use only
Flowtech Exhaust 11110FLT Specifications
Flowtech Exhaust 11110FLT Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 11110FLT |
| Brand | Flowtech Exhaust |
| Header Tube Type | Long Tube |
| Exhaust Port Shape | Round |
| Flange Style | Standard |
| Primary Tube Diameter | 1-5/8" |
| Material Type | Steel |
| Color | Black |
| Weld-Up | No |
| Collector Diameter | 3 Inch |
| Finish | Painted |
| 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 |
| GTIN Code | 787480111104 |
| Emission Code | 3 |
Ratings & Reviews
3
2 Reviews
With mixed reviews, the product shows strength in its fit, as noted by customers who've undergone a V8 swap conversion. The headers were reported to have a tight fit, though minor bending might be necessary due to limited engine compartment space. However, another review warns of clearance issues on the steering rack after installation, causing significant frustration. This indicates that the product's usability and practicality may vary depending on the vehicle, therefore potential buyers should ensure this product is suited for their particular model before purchasing.
Ratings & Reviews
3
2 Reviews
With mixed reviews, the product shows strength in its fit, as noted by customers who've undergone a V8 swap conversion. The headers were reported to have a tight fit, though minor bending might be necessary due to limited engine compartment space. However, another review warns of clearance issues on the steering rack after installation, causing significant frustration. This indicates that the product's usability and practicality may vary depending on the vehicle, therefore potential buyers should ensure this product is suited for their particular model before purchasing.
3
2 reviews
5
1
4
0
3
0
2
0
1
1
Filter by Ratings
Rubs on factory steering- useless application **Warning**
1.0
2 months ago
GTap
Lake Forest, CA
**Warning**After installing everything, mocking it all up and getting the new exhaust put on, I neglected to even check clearances on the steering rack as it was all pointed straight upon installation. After getting the vehicle down and finally driving; the drivers side steering rack smashed into the primaries and the passenger side just sits against the other primary. Complete waste of time and money. Avoid this set of longtubes and save yourself some money, time and frusteration. **Warning**
Would Not Recommend
Great fit
5.0
9 years ago
Dan
Peyton , co
Verified
Wanted to put headers on the car V8 swap conversion --- called a tech told me about the right headers to buy !! Very tight fit and had to bend part of header to --- only very small bend though ! Just the style of the car didn't make much room in engine compartment so very happy they fit !! Thanks Dan b
Would Recommend
Showing 2 of 2 reviews
Questions & Answers
Questions & Answers
1 Question • 3 Answers
will this set of headers 42511110FLT work with angled plugs in a small block chevy
by frank
• 8 years ago
3 answers
View Answers
1 of 1 questions shown
Fitment
Fitment
1959 Chevy 3A
2-Piece Rear Main Chevy 283
1959 Chevy 3B
2-Piece Rear Main Chevy 283
1959 Chevy 3C
2-Piece Rear Main Chevy 283
1959 Chevy 3D
2-Piece Rear Main Chevy 283
1959 Chevy 3E
2-Piece Rear Main Chevy 283
1959 Chevy 3F
2-Piece Rear Main Chevy 283
1959 Chevy 3G
2-Piece Rear Main Chevy 283
1957-1967 Chevy Bel Air
2-Piece Rear Main Chevy 283
1968 Chevy Bel Air
Gen 1 L14 Small Block Chevy
1970-1975 Chevy Bel Air
2-Piece Rear Main Chevy 400
1958-1967 Chevy Biscayne
2-Piece Rear Main Chevy 283
1968 Chevy Biscayne
Gen 1 L14 Small Block Chevy
1970-1972 Chevy Biscayne
2-Piece Rear Main Chevy 400
1969-1973 Chevy Blazer
Gen 1 L14 Small Block Chevy
1958-1961 Chevy Brookwood
2-Piece Rear Main Chevy 283
1969 Chevy Brookwood
Gen 1 L14 Small Block Chevy
1970-1972 Chevy Brookwood
2-Piece Rear Main Chevy 400
Gen 1 L14 Small Block Chevy
1960-1967 Chevy C10
2-Piece Rear Main Chevy 283
1968-1973 Chevy C10
Gen 1 L14 Small Block Chevy
1976-1980 Chevy C10
2-Piece Rear Main Chevy 400
1960-1967 Chevy C10 Suburban
2-Piece Rear Main Chevy 283
1968-1973 Chevy C10 Suburban
Gen 1 L14 Small Block Chevy
1960-1967 Chevy C20
2-Piece Rear Main Chevy 283
1968-1973 Chevy C20
Gen 1 L14 Small Block Chevy
1976-1980 Chevy C20
2-Piece Rear Main Chevy 400
1960-1967 Chevy C20 Suburban
2-Piece Rear Main Chevy 283
1968-1973 Chevy C20 Suburban
Gen 1 L14 Small Block Chevy
1976-1980 Chevy C20 Suburban
2-Piece Rear Main Chevy 400
1960-1967 Chevy C30
2-Piece Rear Main Chevy 283
1968-1973 Chevy C30
Gen 1 L14 Small Block Chevy
1976-1979 Chevy C30
2-Piece Rear Main Chevy 400
1967-1968 Chevy Camaro
Gen 1 DZ Small Block Chevy
1969 Chevy Camaro
Gen 1 DZ Small Block Chevy
Gen 1 L14 Small Block Chevy
1970-1973 Chevy Camaro
Gen 1 L14 Small Block Chevy
1966-1967 Chevy Caprice
2-Piece Rear Main Chevy 283
1968-1969 Chevy Caprice
Gen 1 L14 Small Block Chevy
1970-1973 Chevy Caprice
2-Piece Rear Main Chevy 400
Gen 1 L14 Small Block Chevy
1974-1976 Chevy Caprice
2-Piece Rear Main Chevy 400
1964-1967 Chevy Chevelle
2-Piece Rear Main Chevy 283
1968-1969 Chevy Chevelle
Gen 1 L14 Small Block Chevy
1970-1973 Chevy Chevelle
2-Piece Rear Main Chevy 400
Gen 1 L14 Small Block Chevy
1963-1967 Chevy Chevy II
2-Piece Rear Main Chevy 283
1968 Chevy Chevy II
Gen 1 L14 Small Block Chevy
1957-1961 Chevy Corvette
2-Piece Rear Main Chevy 283
1957-1958 Chevy Del Ray
2-Piece Rear Main Chevy 283
1959-1960 Chevy El Camino
2-Piece Rear Main Chevy 283
1964-1967 Chevy El Camino
2-Piece Rear Main Chevy 283
1968-1969 Chevy El Camino
Gen 1 L14 Small Block Chevy
1970-1973 Chevy El Camino
2-Piece Rear Main Chevy 400
Gen 1 L14 Small Block Chevy
1974-1976 Chevy El Camino
2-Piece Rear Main Chevy 400
1969 Chevy Estate
Gen 1 L14 Small Block Chevy
1970 Chevy Estate
2-Piece Rear Main Chevy 400
Gen 1 L14 Small Block Chevy
1976 Chevy G10
2-Piece Rear Main Chevy 400
1968-1973 Chevy G10 Van
Gen 1 L14 Small Block Chevy
1975-1980 Chevy G20
2-Piece Rear Main Chevy 400
1967 Chevy G20 Van
2-Piece Rear Main Chevy 283
1968-1973 Chevy G20 Van
Gen 1 L14 Small Block Chevy
1975-1980 Chevy G30
2-Piece Rear Main Chevy 400
1958-1967 Chevy Impala
2-Piece Rear Main Chevy 283
1968-1969 Chevy Impala
Gen 1 L14 Small Block Chevy
1970-1973 Chevy Impala
2-Piece Rear Main Chevy 400
Gen 1 L14 Small Block Chevy
1974-1976 Chevy Impala
2-Piece Rear Main Chevy 400
1960-1967 Chevy K10
2-Piece Rear Main Chevy 283
1968-1973 Chevy K10
Gen 1 L14 Small Block Chevy
1975-1980 Chevy K10
2-Piece Rear Main Chevy 400
1960-1967 Chevy K10 Suburban
2-Piece Rear Main Chevy 283
1968-1973 Chevy K10 Suburban
Gen 1 L14 Small Block Chevy
1975-1979 Chevy K10 Suburban
2-Piece Rear Main Chevy 400
1960-1967 Chevy K20
2-Piece Rear Main Chevy 283
1968-1973 Chevy K20
Gen 1 L14 Small Block Chevy
1975-1980 Chevy K20
2-Piece Rear Main Chevy 400
1967 Chevy K20 Panel
2-Piece Rear Main Chevy 283
1960-1967 Chevy K20 Suburban
2-Piece Rear Main Chevy 283
1968-1973 Chevy K20 Suburban
Gen 1 L14 Small Block Chevy
1975-1980 Chevy K20 Suburban
2-Piece Rear Main Chevy 400
1968-1973 Chevy K30
Gen 1 L14 Small Block Chevy
1977-1980 Chevy K30
2-Piece Rear Main Chevy 400
1975-1979 Chevy K5 Blazer
2-Piece Rear Main Chevy 400
1959-1961 Chevy Kingswood
2-Piece Rear Main Chevy 283
1969 Chevy Kingswood
Gen 1 L14 Small Block Chevy
1970-1972 Chevy Kingswood
2-Piece Rear Main Chevy 400
Gen 1 L14 Small Block Chevy
1973 Chevy Laguna
2-Piece Rear Main Chevy 400
Gen 1 L14 Small Block Chevy
1974-1976 Chevy Laguna
2-Piece Rear Main Chevy 400
1964-1967 Chevy Malibu
2-Piece Rear Main Chevy 283
1973 Chevy Malibu
2-Piece Rear Main Chevy 400
Gen 1 L14 Small Block Chevy
1974-1976 Chevy Malibu
2-Piece Rear Main Chevy 400
1970-1976 Chevy Monte Carlo
2-Piece Rear Main Chevy 400
1957-1961 Chevy Nomad
2-Piece Rear Main Chevy 283
1969-1973 Chevy Nova
Gen 1 L14 Small Block Chevy
1957 Chevy One-Fifty Series
2-Piece Rear Main Chevy 283
1976 Chevy P30
2-Piece Rear Main Chevy 400
1961-1962 Chevy P30 Series
2-Piece Rear Main Chevy 283
1968-1969 Chevy P30 Van
Gen 1 L14 Small Block Chevy
1973 Chevy P30 Van
Gen 1 L14 Small Block Chevy
1959-1961 Chevy Parkwood
2-Piece Rear Main Chevy 283
1957-1958 Chevy Sedan Delivery
2-Piece Rear Main Chevy 283
1960-1967 Chevy Suburban
2-Piece Rear Main Chevy 283
1969 Chevy Townsman
Gen 1 L14 Small Block Chevy
1970-1972 Chevy Townsman
2-Piece Rear Main Chevy 400
Gen 1 L14 Small Block Chevy
1957-1958 Chevy Truck
2-Piece Rear Main Chevy 283
1960 Chevy Truck
2-Piece Rear Main Chevy 283
1957 Chevy Two-Ten Series
2-Piece Rear Main Chevy 283
1958 Chevy Yeoman
2-Piece Rear Main Chevy 283
1966 GMC 1000
2-Piece Rear Main Chevy 283
1960 GMC 1000 Series
2-Piece Rear Main Chevy 283
1962-1965 GMC 1000 Series
2-Piece Rear Main Chevy 283
1960-1965 GMC 1500 Series
2-Piece Rear Main Chevy 283
1966 GMC 2500
2-Piece Rear Main Chevy 283
1960-1965 GMC 2500 Series
2-Piece Rear Main Chevy 283
1960-1966 GMC 3000
2-Piece Rear Main Chevy 283
1960-1966 GMC 3500
2-Piece Rear Main Chevy 283
1967 GMC C25/C2500 Pickup
2-Piece Rear Main Chevy 283
1968-1972 GMC C25/C2500 Pickup
Gen 1 L14 Small Block Chevy
1967 GMC C25/C2500 Suburban
2-Piece Rear Main Chevy 283
1968-1972 GMC C25/C2500 Suburban
Gen 1 L14 Small Block Chevy
1967 GMC C35/C3500 Pickup
2-Piece Rear Main Chevy 283
1968-1972 GMC C35/C3500 Pickup
Gen 1 L14 Small Block Chevy
1973-1974 GMC C35/C3500 Pickup
2-Piece Rear Main Chevy 400
1975-1978 GMC K15
2-Piece Rear Main Chevy 400
1975-1978 GMC K15 Suburban
2-Piece Rear Main Chevy 400
1967-1974 GMC K15/K1500 Pickup
2-Piece Rear Main Chevy 400
1967-1974 GMC K15/K1500 Suburban
2-Piece Rear Main Chevy 400
1979-1980 GMC K1500 Suburban
2-Piece Rear Main Chevy 400
1975-1978 GMC K25
2-Piece Rear Main Chevy 400
1975-1978 GMC K25 Suburban
2-Piece Rear Main Chevy 400
1967 GMC K25/K2500 Pickup
2-Piece Rear Main Chevy 283
1968-1972 GMC K25/K2500 Pickup
Gen 1 L14 Small Block Chevy
1973-1974 GMC K25/K2500 Pickup
2-Piece Rear Main Chevy 400
1967 GMC K25/K2500 Suburban
2-Piece Rear Main Chevy 283
1968-1972 GMC K25/K2500 Suburban
Gen 1 L14 Small Block Chevy
1973-1974 GMC K25/K2500 Suburban
2-Piece Rear Main Chevy 400
1979-1986 GMC K2500 Suburban
2-Piece Rear Main Chevy 400
1967 GMC K35/K3500 Pickup
2-Piece Rear Main Chevy 283
1968-1972 GMC K35/K3500 Pickup
Gen 1 L14 Small Block Chevy
1973-1974 GMC K35/K3500 Pickup
2-Piece Rear Main Chevy 400
1966 GMC P1000
2-Piece Rear Main Chevy 283
1973-1977 GMC Sprint
2-Piece Rear Main Chevy 400
1955-1966 GMC Suburban
2-Piece Rear Main Chevy 283
1967 GMC Suburban
Gen 1 L14 Small Block Chevy
1956-1960 GMC Truck
2-Piece Rear Main Chevy 283
1965-1966 Studebaker Commander
2-Piece Rear Main Chevy 283
1965-1966 Studebaker Cruiser
2-Piece Rear Main Chevy 283
1965-1966 Studebaker Daytona
2-Piece Rear Main Chevy 283
1966 Studebaker Wagonaire
2-Piece Rear Main Chevy 283