Brand New Calflow Hurricane SB Ford 351W Single-plane Intake Manifold

The Hurricane manifold for Ford 351W engines has a number of features not found in similar competitive manifolds. It has a bridged rear water crossover passage which contributes to a cooler running engine. It also come with injector bosses that can be drilled and tapped to nitrous nozzles.

• Suits Small Block Ford 351W, will not suit 289/302
• 3500-8000rpm range, ideal for a high performance engine
• Cast aluminium, natural finish
• Suits square bore 4 barrel carburetors and throttle bodies

Calflow manifolds are cast in high pressure steel dies rather than the pour-in sand molds used by other aftermarket manifold manufacturers. This type of tooling costs 2-3 times more than conventional sand-cast patterns, but the finished product is worth the additional expense. And because the cores (which form the internal ports and water passages) are mounted in steel instead of sand during the casting process, there is no chance of any core shift, which sometimes go undetected in sand castings.