SPEED PRO MR-1864RS Engines Specifically Rocker Arm Stud V8
fits model: 455. make: Pontiac. year: 1970–1976.
( Brand: Speed Pro ), ( Manufacturer Part Number: MR-1864RS ), ( Part Type: Engine Arm ), ( Country/region Of Manufacture: United States )
Review SPEED PRO Pontiac V8 Engines Specifically Rocker Arm Stud fits 455 1970–1976
The Pro MR-1864RS Pontiac 455 V8 engine, specifically the rocker arm studs for the models produced between 1970 and 1976, are essential components of this powerful engine. These studs hold the rocker arms in place, which in turn transfer the force from the pushrods to the valves, allowing the engine to breathe and combust fuel efficiently.
The Pro MR-1864RS rocker arm studs are made from high-strength material, ensuring they can withstand the rigors of high-performance driving. Each stud is heat-treated for added durability and strength, ensuring they maintain their integrity even under extreme conditions. The studs feature a chrome finish, not only adding an aesthetic appeal but also providing protection against corrosion and wear.
These studs are designed to be a direct replacement for the original equipment, ensuring a perfect fit and easy installation. The thread pitch is 12 points per inch (ppi), and the length of each stud varies depending on the specific engine application. For instance, the stud for the intake valve is typically shorter than the stud for the exhaust valve.
The Pro MR-1864RS rocker arm studs are engineered to provide improved performance and reliability compared to the original equipment. They are designed to withstand higher horsepower and torque loads, making them an excellent choice for performance enthusiasts and hot rodders looking to extract the maximum potential from their Pontiac 455 V8 engine.
In summary, the Pro MR-1864RS Pontiac 455 V8 engine rocker arm studs for the 1970-1976 models are crucial components that allow the engine to operate efficiently. Made from high-strength material, heat-treated for added durability, and designed to provide improved performance and reliability, these studs are a must-have for any Pontiac 455 V8 engine restoration or performance upgrade project.
The Pontiac 455 V8 engine, particularly the MR-1864RS variant, is a popular choice among car enthusiasts due to its power and performance. However, like any engine, it comes with its own set of advantages and disadvantages. Let's explore these in detail.
Advantages:1. Power: The 455 cubic inch V8 engine produces a significant amount of power, making it a popular choice for muscle cars of the late 1960s and early 1970s.
2. Torque: This engine also delivers a high amount of torque, which is ideal for towing or for those who enjoy a powerful driving experience.
3. Availability: While not as common as some other engines, the Pontiac 455 V8 is still relatively easy to find on the used market, making it a viable option for those looking for a powerful engine.
Disadvantages:1. Complexity: The Pontiac 455 V8 is a complex engine, with many moving parts and intricate systems. This can make repairs and maintenance more difficult and expensive.
2. Fuel Efficiency: Due to its large size and power output, the 455 V8 is not known for its fuel efficiency. Those who prioritize fuel economy may want to consider other engine options.
3. Emissions: The Pontiac 455 V8 does not meet modern emissions standards, making it difficult to register and operate in some areas.
Ending Conclusion:The Pontiac 455 V8 MR-1864RS engine offers significant power and torque, making it an attractive option for car enthusiasts. However, its complexity, lack of fuel efficiency, and inability to meet modern emissions standards are significant drawbacks. Those who value power and performance above all else may find the 455 V8 to be a worthwhile investment, while others may prefer a more practical and efficient engine option.
Recommendation:If you are in the market for a powerful engine for your car project, the Pontiac 455 V8 MR-1864RS could be a viable option. However, be prepared for the additional cost and complexity that comes with owning and maintaining this engine. If fuel efficiency or emissions are a priority, you may want to consider other engine options. Ultimately, the decision comes down to your personal preferences and priorities.
Details:
Specifications. Rocker End Thread Size: 7/16 20 in. Summary Table. Rocker End height : 1.875 in.
Rocker arm stud, built for both stock and roller rocker applications, engineered performance. Known Fitment: Pontiac 455 V8 1970 1976. Rocker height . Product Overview.
Head End Depth: 0.75 in 19.05mm. Since available sources are limited, be sure to validate fitment before purchase.
part #: mr1864rs prices
- $9.99-$23.00
specifications rockeareng:
- for models: 455
- for makes: Pontiac
- for years: 1970-1976
- brand: Speed Pro
- mpn: Mr-1864rs
- part type: Engine Arm
- country/region of manufacture: United States
general rockeareng:
- Engines Engine Parts > Valvetrain Components > Rocker Arms Parts
- condition: New
offer rockeareng:
- quantity: 1
- sold: 0
- options: Ship-to-home
- best offers: True
- availability: In Stock
- started: September 2, 2025
seller rockeareng:
- city: Piney Flats, Tennessee
- # reviews: 348
- rating: 100.0%
shipping rockeareng:
- cost: $16.00
- service: USPS Priority Mail
- transit: 4-10 Days
- carrier: USPS
- class: Expedited
- type: Calculated
returns rockeareng:
- policy: Returns Accepted
- paid by: Seller
- time: 30 Days
payments rockeareng:
- wallet: Paypal
- other
- credit card: Mastercard
Speed Pro MR-1864RS Is Similar To:
- R-1023r Speed-pro Engine Rocker Arm 053059769138 (40.3% similar) 6 ratio, stamped steel, long slot fits Eng's. Parts hawk millions of parts. Crazy fast shipping...(January 9th, 2018)
- R-974-2 Speed Pro Engine Rocker Arms Honda (47.2% similar) Be sure the part you are buying is correct for your application. There may be minor corrosion, scuffs, torn or missing boxes, scratches from storage, etc. 5l free shipping is for continental USA only. Rubber parts, gaskets, hardware may need to be replaced and not usable. Or any other minor issue ...(May 8th, 2018)
- R865r-2 Speed Pro Sealed Power 191215131471 (25.8% similar) Please through the messaging system by ING button above. M in stud mount. Our Product offering includes every conceivable trailer, tire, towing device, truck accessory, suspension, exhaust, lighting, and performance part. 50 ratio long slot Speed Pro rocker arm ABC pair P/N R865R-2 thumbnails to ...(October 20th, 2017)
- Rp-3223r Sealed Power Speed Pro 724956608737 (20.8% similar) Designed utilizing the latest technology, this Product by sealed power features premium quality and will perform better than advertised. Chrome Molly. Designed utilizing the latest technology, this Product by sealed power features premium quality and will perform better than advertised. Engine push ...(January 19th, 2018)
- Rp-3227r Sealed Power Speed Pro 724956608775 (20.8% similar) Designed utilizing the latest technology, this Product by sealed power features premium quality and will perform better than advertised. Engine push rod RP-3227R by Speed Pro. Chrome Molly. Ball and type ends...(December 30th, 2017)
- Rp-3229r Sealed Power Speed Pro 724956608799 (20.8% similar) Chrome Molly. Designed utilizing the latest technology, this Product by sealed power features premium quality and will perform better than advertised. Engine push rod by Speed Pro...(December 30th, 2017)
- Rr-7003r Speed Pro Aluminum Roller (29.6% similar) Speed Pro part number RR-7003R. Our choice rubber parts, gaskets, hardware may need to be replaced and not usable. Once purchased you own it. There may be minor corrosion, scuffs, torn or missing boxes, scratches from storage, etc. They may have been in storage anywhere from 1-30 years. Shipping:...(December 2nd, 2017)
- Rr-7003r-4 Speed Pro Aluminum Roller Rocker Arms Chevy Sbc Ratio (40% similar) If any manufacturer warranty exists, it is between you and them. Sometimes the fitment is so old that it does not take into account trim, engine size or build dates. There may be minor corrosion, scuffs, torn or missing boxes, scratches from storage, etc. Or any other minor issue that does not make ...(March 29th, 2018)
- Rr-7008r Speed Pro Rocker Arm (36.4% similar) New unopened box of Speed Pro RR-7008R rocker arm assembly...(September 30th, 2017)
- Rr 7008r8 Speed Pro Sbf Roller Rockers Aluminum Ratio Stud Full (40.3% similar) I took many photos so you can see the condition. Please look at photos carefully. You can see writing on the box. Box is heavy. There is one that has a little scar on it. I am helping him sell extra parts from that car. He could not tell me 100 if they were ever used so I listed as. Unfortunately ...(October 23rd, 2018)
- R-865r-2 Sealed Power Ratio Long Slot Speed Pro Rocker Arm Sbc (30.8% similar) Be sure the part you are buying is correct for your application. Sometimes the fitment is so old that it does not take into account trim, engine size or build dates. There may be minor corrosion, scuffs, torn or missing boxes, scratches from storage, etc. Sealed power part number R-865R-2. Once ...(April 2nd, 2020)
