IM-427MR-4V N/H - Blue Thunder C7AE9425-F Medium Rise Intake Manifold
PLEASE READ ENTIRE LISTING AS THIS IS A MAJOR PURCHASE
This premium Blue Thunder C7AE9425-F dual-plane, four-barrel intake manifold is designed for Ford FE engines with a Holley carburetor flange and medium-rise ports. The heat riser has been removed to block heat and improve performance. It fits both OE Iron and aftermarket aluminum cylinder heads and is available only every 12-24 months due to limited production.
Precision Engineering & Quality Manufacturing
Sandblasted Finish - Resists corrosion and maintains its original appearance.
Authentic C7AE9425-F Casting Number. Matches original Ford/Shelby specifications for factory appearance and enhanced durability.
Optimized Port Design - Modified runners improve cylinder balance and efficiency.
Port Matched for Out-of-the-Box Performance - This Blue Thunder intake manifold comes port-matched, delivering superior performance right out of the box. Unlike many aftermarket manifolds, which require costly modifications to align properly with cylinder head ports, this manifold is already optimized, making it a cost-effective investment. The manufacturer recommends using the FelPro 1247 series intake gasket that has 2.10 inch tall by 1.4 inch wide ports, that best match this intake manifold.
Other manifolds often can’t be port-matched due to misalignment between ports and pushrod holes, or because of casting porosity issues that make machining risky. Many lower-quality castings come with, or develop leaks over time, leading to expensive repairs or engine damage.
By choosing Blue Thunder upfront, you avoid hundreds, if not thousands of dollars in mechanics costs, potential performance losses, and the risk of manifold leaks that can cause severe engine damage.
The Foreign Warranty Trap - Why Blue Thunder is Different
Many foreign-made FE manifolds come with short-term warranties, knowing that engine builds take significantly longer. By the time a defect is discovered, the warranty has already expired, leaving customers with no recourse for replacement or repair.
Durability & Reliability You Can Trust
Unlike competitors using recycled materials and poor casting, Blue Thunder manufactures at aircraft-certified foundries.
Included in Sale
1) CNC-Machined, Port-Matched Blue Thunder 427 Four-Barrel Intake Manifold
2) Fasteners for Modified Runners
1) Dorman Oil Fill Plug (Installed with RTV Gray Sealant for Easy Removal)
Commonly Asked Questions
Q: Do you sell other FE manifolds?
A: No, because over 70% of aftermarket FE manifolds leak, requiring costly repairs.
Q: Do you stock this item?
A: Yes, we only list what we have on hand.
Q: Do you take deposits?
A: No, we only sell what is physically in stock.
Final Notes
Designed to replicate original Ford FE manifolds, this is an ideal choice for high-performance applications and concours restorations.
Enhance the provided high-resolution images to closely inspect the manifold and determine if it meets your aesthetic expectations and application needs.
This package requires a signature upon delivery!
Don’t settle for cheap knockoffs invest in the best. Limited supply available!