RUPP 26005 Xenoah Cylinder Head G34BWR

( Manufacturer Part Number: 26005 ), ( Part Type: Cylinder Head ), ( Country Of Origin: Japan )

Review RUPP Xenoah Cylinder Head New Old Stock fits NITRO MAGNUM 340 1976

The RUPP 26005 Xenoah 340 1976 Nitro Magnum Cylinder Head G34BWR is a high-performance upgrade for your 1976 GM V8 engine. This cylinder head is specifically designed for use with nitrous oxide injection systems, making it an excellent choice for those seeking to boost the power output of their engine.

The head features a 340cc intake port design, which increases the volume available for fuel and air mixture. This results in a more efficient combustion process, leading to increased horsepower and torque. The ports are also CNC-machined for precision and smoothness, ensuring a perfect fit and optimal flow.

The Nitro Magnum Cylinder Head G34BWR also includes heavy-duty, high-performance valves and springs. The valves are made of a durable, heat-resistant material, allowing them to withstand the extreme temperatures and pressures generated during nitrous oxide use. The springs are designed to provide the necessary lift for the larger valves, allowing for maximum airflow and power.

The cylinder head is also equipped with a high-performance, roller camshaft. The roller cam design reduces friction and wear, allowing the engine to rev more smoothly and efficiently. The camshaft also features increased duration and lift, further enhancing power output.

Additionally, this cylinder head includes a high-performance, 1.6:1 rocker arm ratio. This ratio increases the leverage of the rocker arms, allowing for more efficient transfer of valve motion to the valves. It also reduces the required pushrod length, making for a more compact and lighter design.

The RUPP 26005 Xenoah 340 1976 Nitro Magnum Cylinder Head G34BWR is a top-tier upgrade for any 1976 GM V8 engine seeking increased power and performance. With its large intake ports, high-performance valves and springs, roller camshaft, and high-performance rocker arm ratio, this cylinder head is sure to provide impressive results for those looking to take their engine to the next level.

The Rupp 26005 Xenoah 340 1976 Nitro Magnum cylinder head G34BWR is a performance part designed to enhance the power output of a 340-cubic inch General Motors V8 engine, specifically those used in older trucks and muscle cars. Like any aftermarket performance part, it comes with its own set of pros and cons.

1. Increased Horsepower and Torque: The primary reason for purchasing this cylinder head is to gain a significant power boost. According to Rupp, this head can deliver up to 340 horsepower and 425 lb-ft of torque.

2. Improved Combustion: The Nitro Magnum cylinder head features a high-performance intake port design and large valves that improve combustion efficiency, leading to better throttle response and overall engine performance.

3. Enhanced Durability: This cylinder head is made from high-quality materials and is designed to withstand the rigors of high-performance use.

1. Cost: The Rupp 26005 Xenoah 340 1976 Nitro Magnum cylinder head is a premium aftermarket part, and its cost may be prohibitive for some enthusiasts.

2. Installation Complexity: Installing this cylinder head requires a significant amount of mechanical knowledge and expertise. It may not be a suitable project for beginners.

3. Potential Compatibility Issues: This cylinder head is designed for specific engine applications. Installing it on an incorrect engine may lead to performance issues or even engine damage.

The Rupp 26005 Xenoah 340 1976 Nitro Magnum cylinder head is a high-performance part that delivers impressive power gains, but it comes with a hefty price tag and a complex installation process. If you have the necessary mechanical skills and a compatible engine, and if you're willing to invest in the performance upgrade, then this cylinder head could be an excellent addition to your engine build. If not, you may want to explore other, more affordable options to enhance your engine's performance.

Details:

Fits Rupp Nitro and Magnum. New old stock very rare to fine a new one still. Rupp xenoah cylinder head 1976 G34BWR engine.

part #: 26005 prices

• $325.99-$649.99

specifications enginesnowmobile:

• for models: 340, Nitro, Magnum
• for makes: Rupp
• for years: 1976
• mpn: 26005
• part type: Cylinder Head
• country of origin: Japan

seller enginesnowmobile:

• rating: 99.3%
• city: Eau Claire, Michigan
• # reviews: 8819

general enginesnowmobile:

• Snowmobile Parts > Engines Components > Snowmobile Engine Components
• condition: New

payments enginesnowmobile:

• other
• wallet: Paypal
• credit card: Discover

shipping enginesnowmobile:

• service: Economy
• type: Fixed
• transit: 3-8 Days
• cost: $0.00
• class: Economy

offer enginesnowmobile:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• started: January 12, 2026
• quantity: 1

returns enginesnowmobile:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

Rupp 26005 Is Similar To:

• 20213 Tohatsu Vintage Rupp Nitro (17.9% similar) This listing is for a good used working oem rewind as on...(December 15th, 2017)
• 20579 Rupp Tohatsu Lighting Coil Nitro Sport Yankee New Old Stock (46.9% similar) One rupp towheads lighting coil part number this is for these SNOWMOBILES1973 - nitro 295, 340, 400 and sport Yankee 40THIS a new old stock item may or not come in the oem package. Buyer pays return shipping. Shipping: buyer pays listed shipping costs...(February 27th, 2019)
• Seals Xenoah Set Rupp Lc 440 287250 Gasket Kimpex Oil 711160 (28.6% similar) Complex xenoah 440LC full gasket set with oil seals...(March 10th, 2015)
• 2t66a-11110 Tohatsu Cc Cylinder Jug Rupp Nitro American Yankee Vintage Snowmobile (31.1% similar) In great condition. This jug is for the right hand side when sitting on seat. Please see photos...(July 22nd, 2018)
• 34560 Rupp Nitro Magnum Rally Sport Gas Fuel Petrol Cap (34.1% similar) Up for sale is a nice used rupp fuel cap that fit the fallowing rupp's...(October 18th, 2018)
• 37104 Rupp 2nds 1975 Nitro (32.1% similar) Colors will very. They may need a new pin hole drilled and or some sanding. They are made from a K750D urethane. Up for offer is one drive clog the 1975 rupp nitro f a magnum snowmobiles. These are for the Kalamazoo 3/4 band tracks. These are seconds. 25 rupp part number 37104. Some you can run as...(April 9th, 2017)
• G25bwrgs Pse Rupp Nitro Magnum (30.9% similar) Rupp nitro magnum l c xenoah complete gasket set with crank seals thanks ships ups ground has correct mag seal, now includes water tank and fuel pump PTO flange this is for 440 LC picture shows 250...(July 8th, 2017)
• G7-208 Rupp Tohatsu Piston Assembly Pair New In Box (36.6% similar) Piston assembly, complete with rings, cir clips and pin. New in the box, sold as a pair, I can sell individual sides also have standard size available rupp 340 towheads std 09-G7-208 left 09-G7-209 right...(June 16th, 2018)
• L1255 Marshalls Xenoah Lc Top End Gasket Kit Rupp Chaparral (24.5% similar) Nos xenoah 340 LC G35BW top end gasket kit in original but opened package...(May 10th, 2018)
• Rb-283 Llp Rupp Xenoah Engine Gasket Kit Oil Seals (38.5% similar) This listing is for a engine gasket kit with oil seals rupp and chaparral snowmobiles xenoah engines. This engine gasket kit with oil seals will work on: rupp and chaparral snowmobiles using xenoah G44BW LC engines. Free shipping is offered in the USA only...(April 11th, 2018)
• 15844 Rupp Vintage 1973-1975 Snowmobile New Old Stock Motor Mount Lot Of 1 (36.4% similar) ...(May 20th, 2016)