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    • Speed Engineering LT swap mid length 1-3/4 headers universal Gen V LT1 LT4 stainless LT conversion headers
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    Speed Engineering Universal LT Swap Mid-Length 1-3/4" Headers — F-Body, A-Body, X-Body, G-Body, C10 & OBS C1500 | Gen V LT1/LT4 | 25-1164 ETA 7/31/26

    SKU: 25-1164
    Regular Price $279.99
    Fast Fulfillment: In-stock parts typically ship same day or next business day.
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    Looking for a mid-length option for your Gen V LT swap build? Speed Engineering's 1-3/4" universal LT swap mid-length headers offer a balance between the compact fitment of a shorty and the performance of a longtube — mandrel bent, TIG-welded, and CNC-machined for a precise, port-matched fit across the most popular classic GM LT swap platforms including Camaro, Chevelle, Nova, C10, and OBS C1500 trucks. Compatible with 5.3L and 6.2L LT1 and LT4 engines. Dyno proven to deliver over 20 rear-wheel horsepower over stock manifolds.

    Built from 304 natural stainless steel with merge spikes and standard graphite manifold gaskets included.

    ⚠️ Important Installation Notes:

    • Gen V LT direct injection engine swaps only — these headers are NOT compatible with SBC or BBC engines
    • Knock sensor relocation is required for proper installation
    • 4L80E or older Turbo 350/400 transmission — bellhousing ears may need to be trimmed for proper clearance due to tight fitment on narrow older frames

    Features:

    • Full 1-3/4" Port-Matched Primary Tubes with Merge Spikes — Full-diameter flow from cylinder head to collector for maximum exhaust scavenging
    • 3" Collector — Optimized for strong low-to-mid RPM torque
    • Mandrel Bent Tubing — Consistent tube diameter through every bend; no crimping, no restriction
    • CNC Machined Flanges — Precision fit at the cylinder head for a leak-free seal
    • 304 Natural Stainless Steel Construction — Corrosion resistant, heat tolerant, and built to last
    • Mid-Length Header Design — A balance between shorty and longtube for improved flow and fitment-friendly profile
    • Standard Graphite Manifold Gaskets Included
    • Dyno Proven — 20+ RWHP gain on LT swap applications
    • Compatible with 5.3L, 6.2L, LT1, and LT4 Engines (2014+)
    • V8 LT Engines Only

    Vehicle Applications:

    Note: All applications listed are Gen V LT swap conversions. These headers are not compatible with the original factory engines in these vehicles.

    GM F-Body (RWD) — LT Swap

    Chevrolet Camaro

    • 1970 Chevrolet Camaro (RWD) — LT Swap
    • 1971 Chevrolet Camaro (RWD) — LT Swap
    • 1972 Chevrolet Camaro (RWD) — LT Swap
    • 1973 Chevrolet Camaro (RWD) — LT Swap
    • 1974 Chevrolet Camaro (RWD) — LT Swap
    • 1975 Chevrolet Camaro (RWD) — LT Swap
    • 1976 Chevrolet Camaro (RWD) — LT Swap
    • 1977 Chevrolet Camaro (RWD) — LT Swap
    • 1978 Chevrolet Camaro (RWD) — LT Swap
    • 1979 Chevrolet Camaro (RWD) — LT Swap
    • 1980 Chevrolet Camaro (RWD) — LT Swap
    • 1981 Chevrolet Camaro (RWD) — LT Swap

    Pontiac Firebird & Trans Am

    • 1970 Pontiac Firebird/Trans Am (RWD) — LT Swap
    • 1971 Pontiac Firebird/Trans Am (RWD) — LT Swap
    • 1972 Pontiac Firebird/Trans Am (RWD) — LT Swap
    • 1973 Pontiac Firebird/Trans Am (RWD) — LT Swap
    • 1974 Pontiac Firebird/Trans Am (RWD) — LT Swap
    • 1975 Pontiac Firebird/Trans Am (RWD) — LT Swap
    • 1976 Pontiac Firebird/Trans Am (RWD) — LT Swap
    • 1977 Pontiac Firebird/Trans Am (RWD) — LT Swap
    • 1978 Pontiac Firebird/Trans Am (RWD) — LT Swap
    • 1979 Pontiac Firebird/Trans Am (RWD) — LT Swap
    • 1980 Pontiac Firebird/Trans Am (RWD) — LT Swap
    • 1981 Pontiac Firebird/Trans Am (RWD) — LT Swap

    GM A-Body (RWD) — LT Swap

    Chevrolet Chevelle & El Camino

    • 1968 Chevrolet Chevelle/El Camino (RWD) — LT Swap
    • 1969 Chevrolet Chevelle/El Camino (RWD) — LT Swap
    • 1970 Chevrolet Chevelle/El Camino (RWD) — LT Swap
    • 1971 Chevrolet Chevelle/El Camino (RWD) — LT Swap
    • 1972 Chevrolet Chevelle/El Camino (RWD) — LT Swap
    • 1973 Chevrolet Chevelle/El Camino (RWD) — LT Swap
    • 1974 Chevrolet Chevelle/El Camino (RWD) — LT Swap
    • 1975 Chevrolet Chevelle/El Camino (RWD) — LT Swap
    • 1976 Chevrolet Chevelle/El Camino (RWD) — LT Swap
    • 1977 Chevrolet Chevelle/El Camino (RWD) — LT Swap

    GM X-Body (RWD) — LT Swap

    Chevrolet Nova

    • 1975 Chevrolet Nova (RWD) — LT Swap
    • 1976 Chevrolet Nova (RWD) — LT Swap
    • 1977 Chevrolet Nova (RWD) — LT Swap
    • 1978 Chevrolet Nova (RWD) — LT Swap
    • 1979 Chevrolet Nova (RWD) — LT Swap

    GM G-Body (RWD) — LT Swap

    Chevrolet Monte Carlo & El Camino

    • 1982 Chevrolet Monte Carlo (RWD) — LT Swap
    • 1983 Chevrolet Monte Carlo (RWD) — LT Swap
    • 1984 Chevrolet Monte Carlo (RWD) — LT Swap
    • 1985 Chevrolet Monte Carlo (RWD) — LT Swap
    • 1986 Chevrolet Monte Carlo (RWD) — LT Swap
    • 1987 Chevrolet Monte Carlo (RWD) — LT Swap
    • 1982 Chevrolet El Camino (RWD) — LT Swap
    • 1983 Chevrolet El Camino (RWD) — LT Swap
    • 1984 Chevrolet El Camino (RWD) — LT Swap
    • 1985 Chevrolet El Camino (RWD) — LT Swap
    • 1986 Chevrolet El Camino (RWD) — LT Swap
    • 1987 Chevrolet El Camino (RWD) — LT Swap

    Pontiac Grand Prix

    • 1982 Pontiac Grand Prix (RWD) — LT Swap
    • 1983 Pontiac Grand Prix (RWD) — LT Swap
    • 1984 Pontiac Grand Prix (RWD) — LT Swap
    • 1985 Pontiac Grand Prix (RWD) — LT Swap
    • 1986 Pontiac Grand Prix (RWD) — LT Swap
    • 1987 Pontiac Grand Prix (RWD) — LT Swap

    Oldsmobile Cutlass

    • 1982 Oldsmobile Cutlass (RWD) — LT Swap
    • 1983 Oldsmobile Cutlass (RWD) — LT Swap
    • 1984 Oldsmobile Cutlass (RWD) — LT Swap
    • 1985 Oldsmobile Cutlass (RWD) — LT Swap
    • 1986 Oldsmobile Cutlass (RWD) — LT Swap
    • 1987 Oldsmobile Cutlass (RWD) — LT Swap

    Buick Regal & Grand National

    • 1982 Buick Regal/Grand National (RWD) — LT Swap
    • 1983 Buick Regal/Grand National (RWD) — LT Swap
    • 1984 Buick Regal/Grand National (RWD) — LT Swap
    • 1985 Buick Regal/Grand National (RWD) — LT Swap
    • 1986 Buick Regal/Grand National (RWD) — LT Swap
    • 1987 Buick Regal/Grand National (RWD) — LT Swap

    Chevrolet & GMC C10 Pickups & Panels (RWD) — LT Swap

    • 1960 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1961 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1962 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1963 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1964 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1965 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1966 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1967 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1968 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1969 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1970 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1971 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1972 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1973 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1974 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1975 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1976 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1977 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1978 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1979 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1980 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1981 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1982 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1983 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1984 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1985 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1986 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap
    • 1987 Chevrolet/GMC C10 Pickup/Panel (RWD) — LT Swap

    Chevrolet & GMC C1500 OBS Truck (2WD) — LT Swap

    • 1988 Chevrolet C1500 Truck (2WD) — LT Swap
    • 1989 Chevrolet C1500 Truck (2WD) — LT Swap
    • 1990 Chevrolet C1500 Truck (2WD) — LT Swap
    • 1991 Chevrolet C1500 Truck (2WD) — LT Swap
    • 1992 Chevrolet C1500 Truck (2WD) — LT Swap
    • 1993 Chevrolet C1500 Truck (2WD) — LT Swap
    • 1994 Chevrolet C1500 Truck (2WD) — LT Swap
    • 1995 Chevrolet C1500 Truck (2WD) — LT Swap
    • 1996 Chevrolet C1500 Truck (2WD) — LT Swap
    • 1997 Chevrolet C1500 Truck (2WD) — LT Swap
    • 1998 Chevrolet C1500 Truck (2WD) — LT Swap
    • 1988 GMC C1500 Truck (2WD) — LT Swap
    • 1989 GMC C1500 Truck (2WD) — LT Swap
    • 1990 GMC C1500 Truck (2WD) — LT Swap
    • 1991 GMC C1500 Truck (2WD) — LT Swap
    • 1992 GMC C1500 Truck (2WD) — LT Swap
    • 1993 GMC C1500 Truck (2WD) — LT Swap
    • 1994 GMC C1500 Truck (2WD) — LT Swap
    • 1995 GMC C1500 Truck (2WD) — LT Swap
    • 1996 GMC C1500 Truck (2WD) — LT Swap
    • 1997 GMC C1500 Truck (2WD) — LT Swap
    • 1998 GMC C1500 Truck (2WD) — LT Swap

    Frequently Asked Questions:

    Q: What is the difference between these LT swap mid-length headers and the LS swap mid-length headers (25-1066)? The key difference is the engine family. Part 25-1164 is designed for Gen V LT direct injection engine swaps including LT1 and LT4. Part 25-1066 is designed for GM LS engine swaps. Both cover the same classic GM platforms. Make sure you select the correct headers for your specific engine swap.

    Q: Is knock sensor relocation required? Yes. Knock sensor relocation is required for proper installation of these headers on Gen V LT engine swap applications.

    Q: Will these headers work with my SBC or BBC engine? No. These headers are designed for Gen V LT direct injection engine swaps only and are not compatible with SBC or BBC engines.

    Q: Will these fit with a 4L80E or older Turbo 350/400 transmission? These headers may require trimming of the bellhousing ears on 4L80E or older Turbo 350/400 transmissions for proper clearance due to the tight fitment design.

    Q: What LT engines are these headers compatible with? These headers are compatible with GM Gen V LT V8 engines including 5.3L, 6.2L, LT1, and LT4 (2014 and newer).

    Q: How much horsepower do these headers add? Speed Engineering's 1-3/4" LT swap mid-length headers are dyno proven to add over 20 rear-wheel horsepower compared to stock exhaust manifolds on LT swap applications.

    Q: What material are these headers made from? 304 natural stainless steel with full TIG-welded construction, CNC-machined port-matched flanges, and merge spikes.

    Q: Are gaskets included? Yes. Standard graphite manifold gaskets are included with the headers.

    Q: Are these headers street legal? No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).


    ⚠️ Race Use Only: This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).

    Shipping Policy

    Last Updated: June 2026

    We're committed to getting your order to you as quickly and transparently as possible. Here's everything you need to know about how we ship.

    Order Processing Time

    In-stock orders are typically processed and shipped within 1–2 business days of receiving payment, unless otherwise noted on the product page.

    Orders placed on weekends or holidays will be processed on the next business day.

    Processing times are estimates and may vary during periods of high order volume, severe weather events, holidays, or circumstances beyond our control.

    Backordered Items & ETA Listings

    Some listings display an estimated ship date (ETA). These items are not in stock at the time of order and will not ship immediately.

    ETAs are provided by manufacturers and suppliers and are not guaranteed. Ship dates may change without notice.

    By placing an order for an ETA listing, you acknowledge and agree to the estimated timeframe displayed on the product page.

    If you need to cancel a backordered item, please refer to our Refund Policy for applicable cancellation fees.

    Order Cancellations

    Once an order is placed, cancellations are not guaranteed, as orders are sent to fulfillment quickly.

    If you need to cancel an order, contact us immediately at sales@berryperformancesales.com.

    If a cancellation is possible, applicable processing fees may apply in accordance with our Refund Policy.

    Orders that have already shipped cannot be cancelled and must go through our standard return process.

    Shipping Costs

    Shipping costs are calculated at checkout based on the shipping method selected, package weight and dimensions, and destination address.

    Available shipping options and costs will be displayed before you complete your purchase.

    Estimated Delivery Times

    Domestic orders typically arrive within 1–7 business days after shipment, depending on your location and the carrier.

    Delivery times are estimates only and are not guaranteed.

    Delays due to weather, carrier volume, customs processing, labor disruptions, or other circumstances beyond our control may occur.

    Tracking Information

    Once your order ships, you will receive a confirmation email with tracking information.

    If your tracking has not updated within 48 hours of receiving your shipping confirmation, please contact us.

    Shipping Address

    Please ensure your shipping address is accurate and complete before placing your order.

    If you need to update your address after placing an order, contact us immediately. We will do our best to accommodate your request, but address changes cannot be guaranteed once an order enters fulfillment.

    Berry Performance Sales is not responsible for orders shipped to incorrect or undeliverable addresses provided by the customer.

    We are unable to ship to P.O. Boxes. Please provide a physical delivery address at checkout.

    Signature Requirements

    Berry Performance Sales reserves the right to require an adult signature upon delivery for high-value orders.

    Freight Deliveries

    Freight shipments must be inspected at the time of delivery.

    Any visible damage, shortages, or discrepancies must be noted on the carrier's delivery receipt before signing.

    Failure to note damage or shortages at the time of delivery may limit or void the ability to file a freight damage claim.

    If your freight shipment arrives damaged, contact us within 48 hours of delivery.

    Lost or Stolen Packages

    If your tracking shows your order as delivered but you have not received it, please:

    • Check around your property and with neighbors
    • Confirm the shipping address on your order
    • Contact the carrier directly using your tracking number

    If the issue remains unresolved, contact us within 5 business days of the marked delivery date.

    We will work with you and the carrier to investigate the issue.

    Berry Performance Sales is not responsible for packages confirmed as delivered by the carrier or for packages lost or stolen after delivery.

    Refused or Undeliverable Shipments

    Orders refused by the recipient or returned due to an incorrect or undeliverable address are subject to all applicable return shipping charges, restocking fees, and processing fees outlined in our Refund Policy.

    International Shipping

    We ship internationally.

    International orders may require a custom shipping quote prior to purchase.

    To request a quote, contact sales@berryperformancesales.com with:

    • Your country and full delivery address
    • The item(s) you are interested in purchasing

    International customers are responsible for all customs duties, taxes, brokerage fees, import fees, and other charges imposed by their local government.

    These charges are not included in shipping quotes and are non-refundable.

    Questions?

    We're happy to help before, during, or after your purchase.

    Email: sales@berryperformancesales.com

    Berry Performance Sales reserves the right to update this policy at any time. Changes take effect immediately upon posting. It is the customer's responsibility to review the current policy at the time of purchase.

    Return Policy

    Last Updated: June 2026

    We want you to love what you ordered. If something isn't right, here's everything you need to know.

    30-Day Return Window

    You have 30 days from the date your order is shipped to initiate a return. After this window, we are unable to accept returns.

    We do not offer exchanges. All approved returns are refunded according to the terms below.

    How to Initiate a Return

    To request a return, contact us at sales@berryperformancesales.com with your order number and reason for return.

    All returns must be approved by our team before any item is shipped back to us.

    Once your return has been approved, your item must be shipped within 10 calendar days of approval. Valid tracking information must be provided upon request.

    Items shipped without prior approval, without verifiable tracking information upon request, or outside this window may be refused and returned to sender at the customer's expense.

    Return Conditions

    To be eligible for a return, items must be:

    • Unused and in original condition
    • In original packaging
    • Complete with all original parts, hardware, manuals, accessories, and promotional items

    The following items are not eligible for return:

    • Custom-ordered products
    • Programmers and tuners, unless brand new and factory sealed. Any unit that has been connected to a vehicle, registered, or used to flash a tune is not returnable, regardless of packaging condition
    • Open Box listings
    • Installed, modified, painted, coated, welded, cut, or otherwise used products
    • Items marked as Clearance, Closeout, or Final Sale

    Products sold as kits, complete systems, or bundled packages must be returned in their entirety. Partial returns are not accepted.

    Items that include promotional products, discounts, or free gifts must be returned with all included items. If any promotional item is not returned, its retail value may be deducted from the refund.

    We strongly recommend test-fitting all parts before installation, painting, coating, or modification.

    Labor costs, installation fees, tuning expenses, diagnostic charges, rental vehicles, towing fees, downtime, or any other incidental or consequential costs are not reimbursable under any circumstances.

    If you're unsure whether your item qualifies for return, contact us before purchasing.

    Once we receive your return, we will inspect the item before processing any refund. We reserve the right to deny a return or reduce the refund amount if the item is received in a condition that differs from what was originally shipped, including signs of use, missing parts, altered packaging, or damage that occurred after delivery.

    If a return is denied, the item will be shipped back to the customer at the customer's expense. We will attempt to contact the customer to arrange this. Denied returns left unclaimed after 30 days may be disposed of at our discretion.

    Fitment Responsibility

    Vehicle compatibility information is provided as a guide only and may not account for all modifications, trim levels, production changes, or custom applications.

    It is the customer's responsibility to verify fitment before ordering.

    Berry Performance Sales is not responsible for fitment issues resulting from vehicle modifications, engine swaps, aftermarket components, or inaccurate information provided at checkout.

    If you have questions regarding compatibility, please contact us before placing your order.

    Race Use & Off-Road Products

    Some products sold by Berry Performance Sales are intended for race use, off-road use, or closed-course competition only and may not be legal for use on public roads.

    It is the customer's responsibility to verify local, state, and federal regulations before installing or using these products on a street-driven vehicle.

    Berry Performance Sales is not responsible for fines, citations, emissions violations, or other legal consequences resulting from the use of race-only or off-road-only parts.

    Return Packaging Requirements

    Do not write on, tape directly to, or affix shipping labels to the manufacturer's packaging.

    Returned items must be shipped in an outer box or protective packaging sufficient to prevent damage during transit.

    Items returned with damaged, altered, or missing packaging may be subject to additional deductions or denial of the return.

    Customers are responsible for ensuring return packages are properly packed and delivered to us. We strongly recommend using a trackable and insured shipping service.

    Fees to Know Upfront

    We believe in being transparent about costs:

    • Restocking Fee: 20% — deducted from all approved return refunds
    • Return Shipping: Buyer's responsibility on all standard returns
    • Cancellation (Installment/Payment Plan): 7% fee to cover transaction costs
    • Cancellation (Credit Card/PayPal): 3.5% processing fee
    • Cancellation (Backordered Parts): 3.5% fee, regardless of payment method, to cover processing costs already incurred

    Damaged, Defective, or Incorrect Items

    If your order arrives damaged, defective, or incorrect, you must contact us within 48 hours of delivery at sales@berryperformancesales.com.

    Claims reported outside this window may not be eligible for resolution.

    When contacting us, please include:

    • Your order number
    • A description of the issue
    • Clear photos or video of the damage or defect

    Do not install, modify, or use a damaged, defective, or incorrect item. Installation or use of such items constitutes acceptance of the product's condition and may void eligibility for return, replacement, or warranty consideration.

    Items confirmed to be defective due to a manufacturing defect or fulfillment error will have return shipping costs covered by Berry Performance Sales.

    Manufacturer warranties are separate from our return policy and may require inspection, troubleshooting, or approval directly through the manufacturer.

    Refunds

    Once we receive and inspect your return, refunds are processed within 3–5 business days back to your original payment method.

    Original shipping charges, expedited shipping fees, freight charges, customs fees, duties, taxes, brokerage fees, and other non-refundable service costs are not eligible for reimbursement unless the return is the result of a verified fulfillment error by Berry Performance Sales.

    Refunds are issued only to the original payment method used at checkout.

    You'll receive a confirmation email once your refund has been issued.

    Payment Disputes

    If you experience an issue with your order, we ask that you contact us directly before initiating a chargeback or payment dispute.

    Most concerns can be resolved quickly through our customer support team.

    Questions?

    We're happy to help before, during, or after your purchase.

    Email: sales@berryperformancesales.com

    Berry Performance Sales reserves the right to update this policy at any time. Changes take effect immediately upon posting. It is the customer's responsibility to review the current policy at the time of purchase.

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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