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Tru-Ram® SBC Exhaust Manifolds, Unpolished Stainless

-14%

Tru-Ram® SBC Exhaust Manifolds, Unpolished Stainless
Tru-Ram Manifolds

|

#9300301

Tru-Ram® SBC Exhaust Manifolds, Unpolished Stainless

  • Classic rams horn style exhaust manifold designed for great classic looks with better flow than stock manifolds
  • 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
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Finish:

Unpolished SS

Unpolished Cast IronPolished SS

Discontinued


This item is currently not available

Shop all Tru-Ram Stainless Steel Exhaust Manifolds

Product Summary

Universal Fit, Stainless Steel, Natural

  • Classic rams horn style exhaust manifold designed for great classic looks with better flow than stock manifolds
  • 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
  • Investment cast stainless steel with superior corrosion protection with the fitment of block-hugger style tube headers
  • Includes manifold flange gaskets and mounting hardware for an easy installation
See more details

Key Specs

MFG. Part #9300301
BrandTru-Ram Manifolds
FinishNatural
Collector Diameter2-1/2 Inch
See more specs

Need To Know

Need help?

855.313.9176
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Return Policy

Tru-Ram Manifolds 9300301 Details

  • 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
  • Investment cast stainless steel construction prevents corrosion
  • Design tucks collector close to block like a “block hugger” header
  • Includes fasteners and exhaust flange gaskets for an easy installation
  • Natural stainless steel surface finish can be polished 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 investment cast stainless steel Tru-Ram® rams horn exhaust manifolds. These clean sheet design ram horn manifolds provide the same “block hugging” design while offering a period exhaust manifold look that fits right in. Not to mention the stainless steel construction has many benefits over the tubular steel header, including less chance of cracking and higher corrosion resistance. Add in our high flow design with large 2-1/2-inch Corvette-style exhaust collector and it is easy to see how our Tru-Ram® 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 Tru-Ram® rams horn stainless steel 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 standard 3-bolt collector gaskets included in our 2-1/2-inch 3-bolt flanges, or 2-1/2-inch to 2-inch 3-bolt reducers. We also offer our 2-1/2-inch reducers in stainless steel versions if you're looking to run a complete stainless steel exhaust system on your ride.

This complete kit includes a pair of investment cast stainless steel Tru-Ram® ramhorn manifolds, stainless steel socket head cap screw mounting hardware for the manifold and steel studs with brass nuts for the collector, and exhaust flange 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 these Tru-Ram® ramhorn manifolds look so right on SBC powered hot rods and classic trucks. Choose from the unpolished stainless steel manifolds offered here, or we also offer a polished stainless steel model as well. If you prefer a cast iron version of our Tru-Ram® rams horn manifolds we offer those too.

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.
CA Prop 65
CARB warning

Tru-Ram Manifolds 9300301 Specifications

KEY SPECS
MFG. Part #9300301
BrandTru-Ram Manifolds
FinishNatural
Collector Diameter2-1/2 Inch
GENERAL
Material TypeStainless Steel
Flange StyleSquare Port
Gasket(s) IncludedYes
Inlet Size1-3/8-inch square port
Hardware IncludedYes
Sold in QuantityPair
NotesWill not work with GM D-shape "fast burn" heads
Header Dimension A3.50"
Header Dimension B9.00"
Header Dimension C19.25"

Ratings & Reviews

4.7

14 Reviews

Overall Assessment

Customers have highly praised the product for its excellent fit and aesthetic appeal. Beneficial qualities include its flexibility, allowing for single or dual exhaust installation within the vehicle frame. Its high-quality stainless steel construction furnishes durability and resistance to rust. The product solves clearance issues around the power steering box, all while tucking the exhaust close to the engine. Users also mention the product eliminates common leaking problems associated with similar items. Notably, the robust 3-bolt exhaust flange aligns perfectly with higher power engines. The product's design even accommodates less conventional configurations, such as rack & pinion steering in specific vehicles. Users recommend the product for both mild street engines and more challenging customizations due to its versatility. Its performance outweighs similar competitor products, contributing to its high recommendation rate among users.

Write A Review

4.7

14 reviews

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This is not my first time I have used True-Ram Exhaust Manif

5.0

2 years ago

wfbj11

VaBeach, Va.

Verified

This is not my first time I have used True-Ram Exhaust Manifolds. I am using TrickFlow heads on my SBC , these manifolds work great with the angle plugs design which increases the clearance for the spark plug leads so I didn't need to use shorty plugs. I plan to install the engine in 1935 Chevy Master Deluxe and the configuration of the True-Ram will also works great in this application.

Would Recommend

I would buy this again

5.0

3 years ago

Willy

Clear lake

Verified

All good at this time

Would Recommend

I would buy this product. Again

5.0

3 years ago

Jerry denny

Vidor tx

Verified

Love the fit and look nice

Would Recommend

A great place to do business

4.0

5 years ago

Hey You

Wadsworth ohio

Verified

These fit the bill for my sbc w/sm465 into a cj7. They give me the option of single or dual exhaust within the protection of the frame rails

Would Recommend

Very Nice

5.0

5 years ago

Mike

Ottumwa Iowa

Verified

Plan to have them hot jet coating would be super, cast iron would be good enough but much better made of stainless steel,

Would Recommend

2nd set ive bought

5.0

5 years ago

Johnny hotrod

El mirage California

Verified

Great quality as usual

Would Recommend

The fit is perfect on these old school look

5.0

6 years ago

Hank

Mansfield Ohio

Verified

These will help you tuck the exhaust close to the engine

Would Recommend

This product fit my project and solved clearance issues

5.0

9 years ago

Doug

Strasburg CO

Verified

My project had clearance problems. No headers would clear the PS box. These worked very well.

Would Recommend

Tired of header leaks?

4.0

9 years ago

M. Mayor

Whittier, ca

Verified

The Tru Ram manifolds are pricey in stainless but end the typical leaking header problems. The mating surface to the heads was not perfect but thin gaskets solved that problem with mine. I highly recommend using ARP studs with aluminum heads since the holes in the head are only 3/8"x16tpi at 5/8" deep. The manifold ports exactly matched the size of my 500hp Dart block, NKB heads - no port matching needed. The 3 bolt exhaust flange is beefy and exits level with the world. These manifolds are tight to the block - do not run your plug wires between the manifold and the block. Despite using heat protector socks, 2 wires melted. Buy longer SBC plug wires and route them outside of the downpipe and underneath. Speedway should sell a compatible 2.5" welded flat header flange to mate with my 2.5" exhaust pipes that is 3/8" thick, not one reducing it to 2 inches. A big reduction in connection size defeats the high flow of these manifolds. When rack & pinion steering is used in a 1940 Ford pickup, these manifolds fit.

Would Recommend

Cast Stainless Ram Horns

4.0

10 years ago

VC Garage

Santa Cruz

Verified

Nice product, but did not fit my application. These are cast stainless and are slightly block hugger style compared to stock. I needed a non-block hugger design since I have dropped a 350 chevy into an XJ6 Jaguar and the rear steer rack & pinion is right in the way for every aftermarket headers I have seen - only a straight drop exhaust manifold will work.

Would Recommend

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Showing 10 of 14 reviews

Questions & Answers

26 Questions • 12 Answers

I'd like to use these exhaust manifolds with AFR heads that have a D-port measuring 1.450" H x 1.550" W. These exhaust manifolds list the port size to be 1.375" square. If I port the exhaust manifold ports to be closer to 1.5", will there still be enough material at the face to seal (and avoid exhaust leaks), or should I only consider an exhaust port >1.5"? Thanks!

by Mr Mediocre

• 5 years ago

1 answer

View Answer

I'm currently running Speedway Smoothie manifolds on my 79 Corvette. I'm using downpipes with donut gaskets and a small pipe that fits inside of the donut gasket (made for a 65 Corvette) that work perfectly with the Smoothie manifolds. Will these Tru Ram manifolds be a bolt-in replacement (including reusing the gaskets and downpipes) for the Smoothies? Will these offer any performance benefit over the Smoothies?

by dmruschell

• 8 years ago

1 answer

View Answer

I have a 63 gen 1 SBC w/short water pump. My alternator is currently mounted on stock driver side ram horn. Can you please recommend an alternator bracket to use with these ram horns?

by 63 ss

• 8 years ago

3 answers

View Answers

Will they work in a 1966 Chevy 2 Application?

by RJ

• 9 years ago

1 answer

View Answer

Please advise: specifically which exhaust flange fits these manifolds to connect them to my 2.5" mild steel exhaust pipes. My Speedway manifolds are 3 1/8" from center to center of the 3 exhaust pipe studs. I prefer a thick 3/8" mild steel flange. It looks like these manifolds need a flat surface on the flange with a flat gasket. Thx!

by Allan

• 9 years ago

1 answer

View Answer

Will these fit My 1972 Chevy K20 4wd pickup with a stock 350?

by Jerry

• 10 years ago

1 answer

View Answer

Will the Tru-Ram Manifold work with; Chevrolet Performance 12556463 Chevy ZZ4 Aluminum Cylinder Head

by Slick

• 10 years ago

1 answer

View Answer

will they fit zz-4 heads

by gharris47

• 11 years ago

1 answer

View Answer

Will these stay the same color or will they look terrible if not coated at a significant expense?

by Troy

• 11 years ago

1 answer

View Answer

What are the large and small ODs of the collector flange? I'm trying to determine if they will clear my clam shell motor mount brackets.

by MikeB

• 11 years ago

1 answer

View Answer

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10 of 26 questions shown

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