Tru-Ram® Small Block Chevy Exhaust Manifolds, Cast Iron
Tru-Ram® Small Block Chevy Exhaust Manifolds, Cast Iron
Tru-Ram Manifolds

|

#9300300

Tru-Ram® Small Block Chevy Exhaust Manifolds, Cast Iron

  • 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 Cast Iron

Polished SS

$305.99

/pair

In Stock


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Product Summary

Universal Fit, Cast Iron, Natural, 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
  • Cast iron efficiency 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 #9300300
BrandTru-Ram Manifolds
FinishNatural
Collector Diameter2-1/2 Inch
See more specs

Need To Know

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855.313.9176
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Tru-Ram Manifolds 9300300 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
  • 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 and exhaust flange gaskets for an easy 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 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 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 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 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.

This complete kit includes a pair of Tru-Ram® ramhorn manifolds, black oxide socket head cap screw mounting hardware for the manifold and black oxide 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 raw finished cast iron manifolds offered here, or we also offer our stainless steel Tru-Ram® rams horn manifolds in unpolished and polished versions as well.

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 9300300 Specifications

KEY SPECS
MFG. Part #9300300
BrandTru-Ram Manifolds
FinishNatural
Collector Diameter2-1/2 Inch
GENERAL
Material TypeCast Iron
ColorNatural
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

4.9

21 Reviews

Overall Assessment

Customers admire the product for its perfect fit, excellent performance, and durability. The parts are confirmed to be well-casted, providing a 'stock' look, and are quieter than other options. The manifolds can be used in a variety of automobiles, including 87' Toyota pickups, 54' Chevy 210 two doors, and C3 Corvettes. They also provide a fantastic exhaust routing upgrade over older systems. Many customers have praised the parts' high caliber and good fit, saying they would definitely buy them again. Some users highlighted the product's practicality, as they received all the necessary bolts and gaskets for installation. These manifolds are recommended as a stable, high-performing alternative to headers, providing pleasing aesthetics to the engine compartment with upgraded overall performance. The product is different and top-notch, appreciated for the added durability of cast iron and room for running wires. However, while quality and performance are excellent, some customers noted potential clearance issues, thus recommending potential buyers to mind their project's parameters.

Write A Review

4.9

21 reviews

5

19

4

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Perfect fit

5.0

2 months ago

CJ

Alaska

Verified

I installed these on an L31 Vortec crate engine. Fit on the engine with no problems. Yes they will fit on a 1977 Chevy K10 and yes you do need to slightly modify the drivers side motor mount bracket that bolts to the engine. Very happy with the fit and finish of the manifolds. Hardware was included, worked well.

Would Recommend

Perfect

5.0

10 months ago

Howard

Ione WA

Verified

They look great on the 1955 Chevy pickup. I painted them with a extreme high heat ceramic paint, supposed to be good to 3000 degrees.

Would Recommend

Yes I would buy again

5.0

a year ago

Dave

Colorado

Verified

Very solid and straight, should work great.

Would Recommend

Better than stock, Ramshorn!

5.0

2 years ago

Horny

San Francisco

These ramps horns are very well-made! Good, thick castings that are certain to flow much better than the stock manifolds. After several coats of graphite, to prevent rust, I wrap them with two layers of a wrap.

Would Recommend

Second set that I have purchased

5.0

2 years ago

Lurch

Lomita , ca

Verified

These are great, tight fitting, looks great and old school, with no exhaust leak issues

Would Recommend

they are a very nice fit and look like they belong and more

5.0

3 years ago

Dreamer

Coalhurst, Alberta, Canada

Verified

wanted a more stock look and quieter on my 40 Willys sedan

Would Recommend

Tru-Ram

5.0

4 years ago

Kent

St. Francis, KS

Verified

The Tru- Ram manifolds are cast and machined well and fit as desired. I haven't fired the motor yet, but they should be very durable and provide good performance.

Would Recommend

I would buy this again

4.0

4 years ago

Drogers

Tulsa

Verified

1987 toyota pickup

fit and finish were spot on.

5.0

5 years ago

rm

tx

Verified

looks great; can not wait to fire it up. really like the exhaust routing upgrade over older ramhorn systems.

Would Recommend

yes

5.0

6 years ago

Andy

Two harbors Minnesota

Verified

using them on my 1954chevy 210 two door .very nicely machined parts very good fit for my project

Would Recommend

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Showing 10 of 21 reviews

Questions & Answers

37 Questions • 21 Answers

will they fit D shaped ports on chevy performance heads

by loggerjack

• 4 years ago

1 answer

View Answer

The collector end seems to be set in closer to the block but none of the pics really capture this. How much further in are the flanges compared to stock rams horns?

by alini

• 7 years ago

1 answer

View Answer

Can you custom make the flange from 2 1/2 to 3 inches?

by Jojo

• 7 years ago

1 answer

View Answer

Will these Ram Horns work on small block Bow Tie heads with angle plugs?

by Jojo

• 7 years ago

3 answers

View Answers

Guys, I am doing a custom engine swap of a 1985 SBC 305 (TPI) engine into a kit car and would like to know if this manifolds would work on my stock heads (Tru-Ram® Small Block Chevy Exhaust Manifolds, Cast Iron). Regards Eddie

by Eddie

• 8 years ago

3 answers

View Answers

I have a 1969 Chevy C-20 and a 1970 GMC 2500 with 350,s. They both have the original Ram style exhaust. They both have the collectors sweep towards the back of the truck. It looks like these Tru-Ram style go straight down, how far I don't know. Does anybody know if these will work on those trucks?

by SonomaComa

• 8 years ago

4 answers

View Answers

will these work in my C10 with 350 Blueprint engine with aluminum heads

by shawn

• 8 years ago

1 answer

View Answer

I have a 1968 Chevrolet C-10 with a 327 - will there be any issues with these fitting? I also have a stock sized starter motor, and currently run some cheap, long tube headers. Thanks, Ned

by Ned

• 8 years ago

2 answers

View Answers

Will these manifolds work in a '63 Impala with a 350 engine with vortec heads?

by Prairie Viking

• 8 years ago

1 answer

View Answer

Will the stock spark plug wire heat shields for the ram horn fit with the Tru-ram sbc exhaust manifolds also? I had a problem with my spark plug wires burning up with ram horn without shields.

by Shawn

• 9 years ago

4 answers

View Answers

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Fitment

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