LS7 Exhaust Manifold – High‑Performance OEM/ODM Solutions
Power your engines with a precision‑cast LS7 exhaust manifold that cuts back‑pressure, boosts torque, and meets U.S. compliance.
Get Free Quote in 24 hWhy Your Current Exhaust Manifold Is Holding Back Performance
- High back‑pressure – leads to 5‑12% loss in horsepower.
- Inconsistent casting quality – cracks appear after 10,000 km.
- Long lead times – 6‑8 weeks from order to delivery.
- Non‑compliant material certifications – risk of customs delays.
- Overpriced OEM options – up to 30% higher than market average.
According to a 2025 SAE survey, 42% of fleet managers cite exhaust inefficiency as the top cause of fuel waste. Imagine cutting that waste by 30%.
See the solution →Your Competitive Edge with Our LS7 Exhaust Manifold
- Precision Cast Iron (GJS‑400) – reduces back‑pressure by 28%.
- OEM/ODM Design Flexibility – tailor port geometry to your engine specs.
- ISO‑9001 & RoHS Certified – smooth customs clearance in the U.S.
- High‑Speed Delivery – 10‑12 business days from order confirmation.
- Competitive Pricing – up to 25% lower than Chinese peers without compromising quality.
Technical Specifications
| Parameter | Specification |
|---|---|
| Material | GJS‑400 Cast Iron |
| Weight | 6.8 kg (per unit) |
| Port Diameter | 1.75 in (customizable) |
| Operating Temp | –40 °C to +900 °C |
| Compliance | CE, ISO‑9001, RoHS, CARB‑EPA |
Application Scenarios & Case Studies
• Performance‑tuned street cars – 15% increase in torque at 4,500 rpm (tested on a 5.7 L V8).
• Heavy‑duty trucks – fuel consumption dropped 9% on a 12‑hour route (FleetCo, 2025).
• Marine engines – corrosion‑resistant coating extended service life by 18 months (Oceanic Ltd.).
Frequently Asked Questions
What is the minimum order quantity for LS7 exhaust manifolds?
We accept orders as low as 50 units for OEM/ODM projects. Larger volumes receive tiered discounts.
Can you customize the port shape and bolt pattern?
Yes. Our engineering team provides 3‑D CAD revisions within 5 business days. No extra tooling cost for changes under 10 mm.
What are the payment terms for U.S. buyers?
30 % T/T deposit, 70 % balance before shipment. We also accept L/C at sight for orders over 1,000 units.

How long does shipping take to the United States?
Standard air freight: 3‑5 days; sea freight: 15‑20 days. All shipments include tracking and insurance.
Do you provide after‑sales technical support?
Our U.S. support desk operates 24 × 7. We offer free installation guidelines and a 12‑month warranty against casting defects.
Limited‑Time Offer: 5% Discount on First Order
Place your order within the next 7 days and receive a risk‑free sample plus a money‑back guarantee if specifications are not met.
Request Quote Now
Or contact us directly:
Tel: +86‑311‑808‑126‑83 |
WhatsApp: +86 19333738338 (Ben) / +86 19333736198 (Linda)
Email: info@ydcastings.com
What Our Customers Say
- James L., Operations Manager, TurboWorks – “The LS7 manifold arrived in 9 days, fit perfectly, and gave us a clean 12 HP gain on our test bench.”
- Sofia M., Procurement Lead, PowerDrive Inc. – “Competitive pricing without sacrificing durability – our ROI was realized in just 3 months.”
- David K., Senior Engineer, MarineTech – “Custom porting saved us from overheating issues that plagued our previous supplier.”
Power your engines with a precision‑cast LS7 exhaust manifold that cuts back‑pressure, boosts torque, and meets U.S. compliance. According to a 2025 SAE survey, 42% of fleet managers cite exhaust inefficiency as the top
Who’s Already Benefiting
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All products are backed by ISO 9001, CE, RoHS, and CARB‑EPA certifications. Our factory holds a CCC license for North‑American export compliance.
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