The AFR Magnum Intake Manifold is the ultimate power upgrade for your Big Block Chevy engine. Crafted with precision and engineered to perfection, this manifold is the key to unlocking a new level of performance for your street vehicle. Developed to match the port designs of our popular cylinder heads, this manifold provides an optimized intake tract for increased performance. These As-Cast pieces were modeled using our rectangular ports and provide guaranteed fitment out of the box. 
 
Say goodbye to the painstaking task of port matching, as it is a direct bolt-on solution for our select cylinder heads. Perfect for street and marine applications with an RPM range up to 6,500 RPM. Features include unmachined port nitrous bosses, 2 distributor clamp locations and mutliple front and rear coolant bosses. Elevate your driving experience today with AFR’s Magnum Intake Manifold – where power meets precision. Best fit for AFR Magnum Rectangle Port 305cc, 315cc, and 325cc cylinder heads.

May require porting to match other cylinder heads.
Using this product with non-AFR heads could necessitate machining of the manifold or block
Designed for 4150/4160 Carbs