Exhaust Header for 1935, 1936, 1937, 1938, 1939, 1940, 1941, 1942, 1943, 1944, 1945, 1946, 1947, 1948 Small Block Chevy
Specifications:
Brand Name: FLASHARK
Certificate: ISO9001:2000
Application: Automobile Exhaust Header
Material: Stainless Steel
Surface: Mirror Polish
Model: EH28124
Package included:
1 * Exhaust Header Kit
High-Temperature Inoxidizability
Exhaust in the high-temperature cycle for a long time. The oxidation resistance of the material at high temperatures directly affects the service life of the exhaust. The exhaust system of Flashark is resistant to high temperatures and has good oxidation resistance;
OE Specified Design
The exhaust system produced by the original factory has the characteristics of anti-deformation and anti-cracking, so that your exhaust system will not leak, can extend the service life of the engine, and has a better sense of experience;
Boost Horsepower and torque, and Save on Gas with Headers and Exhaust System Modifications!
Replacing a vehicle’s headers and exhaust can add horsepower and torque and increase its volume. Want a car that sounds like an American muscle car should? This header will help your vehicle achieve that, and it can add up to 8-20 horsepower.
Install an exhaust system means about a 0.5 mpg gas mileage improvement. While that might not sound like much, consider this: If gas costs $3 a gallon, and you drive this truck 15,000 miles a year, you’re saving yourself about $85 a year on gas. In five years, you’ll have saved nearly enough money to pay for a complete cat-back exhaust system
Exhaust Header VS Manifold, which is the better choice?
The structural differences between exhaust headers and manifolds are the material and size. From the material, exhaust headers are made of lighter, thinner steel, while exhaust manifolds are made of thick iron. Exhaust headers are also longer than exhaust manifolds. When in use, exhaust manifolds create back pressure, which lowers performance. Because each cylinder of the engine is given its own tube, however, headers eliminate this problem; thus, allowing the gases to exit without the creation of back pressure. Therefore, exhaust headers are a BETTER choice than an exhaust manifold.
Fitment & Compatibility
| Brand | Model | Year | Full Compatible Specs |
|---|---|---|---|
| Chevrolet | Street Rod (Classic Car Engine Swap) | 1935-1948 | Small Block Chevy (SBC) V8 Engine Swap; Fits 265/305/327/350/400 V8 Engines |
Q1: What vehicles and engines are compatible with the FLASHARK exhaust header for 1935-1948 small block chevy?
A1: This specialized exhaust header for 1935-1948 small block chevy builds is precision-engineered for classic Chevrolet street rods, hot rods, fat-fender passenger cars, and vintage pickups undergoing a small block Chevy V8 swap. It fits all major generation-1 classic SBC block configurations, including the 265, 305, 327, 350, and 400 V8 engines.
Q2: Why is a block hugger shorty style preferred for a 1935-1948 Chevy street rod engine swap?
A2: Classic street rods and fat-fender trucks from the 1930s and 1940s have notoriously narrow engine bays and tight clearances around the frame rails, steering columns, and starter motors. This premium sbc header features a compact block hugger shorty configuration that drops tight to the block, providing the necessary clearance where traditional long tube designs would collide with the chassis.
Q3: What premium exhaust header material does FLASHARK use to prevent corrosion and discoloration?
A3: This high-performance kit is constructed from premium, lightweight stainless steel featuring a beautiful mirror-polished finish. Our chosen exhaust header material boasts superior high-temperature oxidizability and corrosion resistance, ensuring the pipes handle intense engine bay thermal cycles without structural degradation or rust over time.
Q4: How does upgrading to FLASHARK exhaust headers for small block chevy compare to using standard cast manifolds?
A4: Traditional factory cast-iron manifolds are exceptionally heavy, prone to hair-line cracks, and force spent gases into a highly restrictive common chamber that produces severe backpressure. Upgrading to smooth mandrel-bent FLASHARK exhaust headers for small block chevy engines assigns a dedicated tube to each exhaust port, allowing gases to expand and exit seamlessly while entirely eliminating backpressure.
Q5: What kind of horsepower and torque gains can I expect from this sbc header installation?
A5: By dramatically reducing backpressure and optimizing exhaust scavenging, this high-flow sbc header can unlock an additional 8 to 20 horsepower and a corresponding bump in low-to-mid-range torque. This optimization lets your small block breathe efficiently, yielding crisper throttle response and even a slight boost in gas mileage (up to 0.5 MPG improvement).
Q6: Does this header provide adequate clearance for both straight and angled spark plug boots?
A6: Yes, the tight-fit block hugger routing of this header is carefully configured to maintain safe operating clearance for standard straight spark plug boots. If you are using aftermarket heads with severe angle plug locations, we highly recommend utilizing shorty-style plugs or high-temperature 90-degree boot shields to protect your ignition wires from direct radiant heat.
Q7: How thick is the head flange, and how does it prevent annoying exhaust leaks?
A7: To eliminate the warping and cracking common to lower-grade alternatives, this product features an OE-specified, heavy-duty thick steel head flange. This robust structure distributes uniform clamping force across the cylinder head exhaust face, establishing a highly stable, completely airtight seal that protects your engine from devastating exhaust leaks.
Q8: Is this exhaust header for 1935-1948 small block chevy a complete direct bolt-on kit?
A8: Yes, on the cylinder head side, it serves as a direct bolt-on upgrade matching standard SBC mounting patterns flawlessly. Because this is designed for custom street rod engine swaps, the collector outlets terminate cleanly underneath the block, providing a perfect starting point to fabricate or clamp your unique, custom-routed dual exhaust downpipes.
Q9: What installation hardware and components are included with the FLASHARK Model EH28124 header?
A9: Every FLASHARK header package comes complete with the essential hardware required to execute a secure installation right out of the box. The kit includes a pair of mirror-polished stainless steel headers, premium heavy-duty cylinder head gaskets, matching collector flange gaskets, and all necessary high-tensile mounting bolts.
Q10: How will this upgrade modify the exhaust note and overall sound profile of my hot rod?
A10: Installing this block hugger assembly swaps out the muffled, choked tone of factory cast iron for a deeper, crisper, and much more authoritative American muscle car rumble. It perfectly accentuates the aggressive firing order of your Small Block Chevy V8 under heavy load while retaining a smooth, refined acoustic presence at idle.
Q11: Will this header clear factory starters and steering shafts on vintage fat-fender pickups?
A11: Yes, the primary tubes are tightly tucked to maximize clearance for standard-size starters and typical steering box arrangements found in 1935-1948 fat-fender setups. If your custom build utilizes an oversized aftermarket steering shaft or an ultra-bulky modern starter, the block-hugging design provides the maximum allowable workspace to adjust your mounting angles safely.
Q12: What manufacturing quality standards back this FLASHARK performance line?
A12: This header is built in strict compliance with ISO9001:2000 quality management system certifications. Every single mandrel bend, TIG weld joint, and machined flange face undergoes rigorous auditing to guarantee top-tier structural integrity, flawless out-of-the-box fitment, and reliable endurance on or off the track.