Smoothie Rams Horn Exhaust Manifolds Small Block For Chevy SBC 283 305 327 350

• Smooth exterior finish with no exposed brackets or bolt holes for a clean appearance
• Fits most factory Gen 1 SBC heads including Vortec heads
• Ample clearance for both straight and angled spark plug applications
• 1-3/8-inch by 1-3/8-inch square port design can be port matched to your heads
• Increased flow over stock manifolds and utilizes Corvette-style 2-1/2-inch 3-bolt collector
• Nodular iron construction retains heat for efficiency and quieter than tubular headers
• Design tucks collector close to block like a “block hugger” header
• Includes fasteners, exhaust flange gaskets, and collector gaskets for installation
• Raw surface finish can be painted or ceramic coated

Low Profile Exhaust Manifolds That Provide Great Clearance with A Classic Appearance

If you’ve spent any time at all installing tubular steel headers on a car you know what a pain in the backside they are. They often hang too low, hit your steering box, or must pass through your steering or clutch linkage, and don’t even get us started on blown out header gaskets and must constantly check and tighten header bolts. Are tubular headers worth the hassle? Many will say yes, and we will agree if the power level warrants it, or it is a custom set made for the exact chassis and engine combination (which often costs big money!). For most of us however, a good “block hugger” header will suffice. These header designs are known for being easier to install and have few drawbacks (except those often leaking header gaskets).

But even the block hugger header can look out of place in some builds, especially those early pre-war cars with open engine bays. You can give your small block Chevy the best of both worlds by using our smooth looking cast iron rams horn exhaust manifolds. These ram horn manifolds provide the same “block hugging” design while offering a period exhaust manifold look that fits right in. Not to mention the cast iron design has many benefits over the tubular steel header. Add in our high flow design with large 2-1/2-inch Corvette-style exhaust collector and it is easy to see how our Smoothie Rams Horn exhaust manifolds are hard to beat for the price, clearance, and great fit.

Fits Most Straight and Angle Plug Gen 1 Small Block Chevy Cylinder Heads

The factory cast iron SBC exhaust manifold will often have extra mounting holes/ears cast into it, either causing fitment issues or just plain ugly looking. Stock manifolds also are cast for specific chassis and engine combinations, again potentially causing fitment issues. Our Smoothie Rams Horn exhaust manifolds are designed from the start to fit most factory head castings, be they straight plug or angled plug, while providing greater flow and power production than the typical stock SBC exhaust manifold. With plenty of material around the 1-3/8-inch square exhaust flange port you can easily port match these to your heads for greater exhaust flow. The larger 2-1/2-inch Corvette style 3-bolt collector works with both flat gaskets and a if you’re stock exhaust pipe flange requires them.

You can easily connect our rams horn manifolds to your existing exhaust via , or , depending on the diameter of your current exhaust system. This complete kit includes a pair of ramhorn manifolds, mounting hardware for the manifold and collector, exhaust flange gaskets, and collector gaskets. Everything you need to easily install your ram horn manifolds without the stress and frustration of trying to fit tubular headers. Plus, there’s no denying the ramhorn manifolds look so right on SBC powered hot rods and classic trucks. Choose from the raw finished manifolds offered here, or we also offer our rams horn manifolds in , , and versions as well.

Note that there are fitment issues when attempting to fit to Tri-5 Chevys and 1935-1940 Fords with stock steering box.