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Smoothie Rams Horn Exhaust Manifolds Small Block Chevy SBC 283 305 327 350 400 For Sale - New and Used


Smoothie Rams Horn Exhaust Manifolds Small Block Chevy SBC 283 305 327 350 400
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Smoothie Rams Horn Exhaust Manifolds Small Block Chevy SBC 283 305 327 350 400:
$159.99

Classic rams horn style exhaust manifold with a ground smooth appearance for great vintage looks, Features Corvette style 2-1/2-inch outlet for added flow and performance, Fits most Gen 1 small block Chevy heads with straight or angle plug design, Cast iron efficiency with the fitment of block-hugger style tube headers, Includes collector gaskets and mounting hardware for an easy installation Smoothie Rams Horn Exhaust Manifolds, Small Block Chevy, Raw Sku # 9300329 Mfr. Part # 9300329 Condition New Brand Speedway Motors Sold Pair Details Info
  • 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.

Installation Tips

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

Specs Sold in Quantity Pair Flange Style Square Port Color Natural Gasket(s) Included Yes Hardware Included Yes Header Dimension B 5.30 Header Dimension C 18.50 Collector Diameter 2-1/2 Inch MFG. Part # 9300329 Material Type Nodular Iron Finish Raw Header Dimension A 4.03 Inlet Size 1-3/8-inch square port Notes Fitment issues with Tri-5 Chevy’s and 1935-1940 Fords with stock steering box Reviews These manifolds worked out great. Rated by Madmax on February 20, 2022

Summary: The manifolds are being put on a 5.7 installed into a 1950 Willys pick-up and they worked out great with the modification of the engine mounts and frame.

Yes, I recommend this product.

Would buy again, and would recommend Rated by 40 ford on January 27, 2022

Summary: Replaced old rusty, noisy, leak prone headers for these. Exact fit on sbc 400 engine. Everything needed was included. Much more room now to work on engine, trans, starter, on a 40 Ford.

Yes, I recommend this product.

Good price Rated by Geno on January 19, 2022

Summary: Ended up not using because of steering linkage conflick

Yes, I recommend this product.

This is just as advertised! Installs and fits correctly Rated by 61 Willy on December 17, 2021

Summary: Needed new manifolds! These are just what I needed and expected. Fit well and installed with no hassle!

Yes, I recommend this product.

i will buy this product again Rated by Lazy bones on May 24, 2021

Summary: replaced leaking non matching headers on 56 Chevy no more problems no worries.

Yes, I recommend this product.

Related Items / Suggested Parts Tight-Tubes Block Hugger Header Extension Kit, Mild Steel Speedway 3-Bolt Header Collector Reducer Kit, 2-1/2 to 2 Inch Tight-Tubes Block Hugger Header Extension Kit, Stainless Steel Tru-Ram® Small Block Chevy Exhaust Manifold Gasket Set Smoothie Rams Horn Exhaust Manifolds, Small Block Chevy, Silver Smoothie Rams Horn Exhaust Manifolds, Small Block Chevy, Black Smoothie Rams Horn Exhaust Manifolds, Small Block Chevy, Chrome Steel Exhaust Collector Ring, 2-1/2 Inch Tech Support We're here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through Messaging and a knowledgeable Speedway Motors team member will be happy to help. About Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 72 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.
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