fits model: 400, 428, 455. make: Pontiac.

( Brand: Spotts Performance ), ( Manufacturer Part Number: SRR16 ), ( Part Type: Roller Arm )
The SRR16 1.65 7-16 Roller Rocker Arms from Spotts Performance is an exceptional upgrade for your Pontiac V8 engine, specifically models that utilize the 400, 428, or 455 engine blocks. These rocker arms are designed to provide superior performance and durability, making them an ideal choice for high-performance applications.
The SRR16 roller rocker arms feature a 1.65-inch roller tip diameter, which is larger than standard OEM rocker arms. This larger diameter allows for increased valve lift, leading to improved engine performance and power output. The roller tips also reduce friction between the rocker arm and the valve stem, reducing wear and improving engine efficiency.
The 7-16 roller rocker arm configuration refers to the number of degrees the rocker arm pivots as it moves up and down. The 7-16 configuration provides a more aggressive valvetrain motion, which can further improve engine performance by increasing airflow and fuel delivery.
The SRR16 roller rocker arms are made from high-quality materials, including hardened steel and aluminum, to ensure longevity and durability. They are also designed to fit seamlessly into your existing engine setup, making installation easy and straightforward.
In addition to their performance benefits, the SRR16 roller rocker arms from Spotts Performance also have a sleek, polished appearance that will enhance the look of your engine compartment. They are a great way to add a touch of style while also improving your engine's performance.
Overall, the SRR16 1.65 7-16 Roller Rocker Arms from Spotts Performance are an excellent upgrade for anyone looking to improve the performance of their Pontiac V8 engine. They are built to last, provide improved valvetrain motion, and have a polished appearance that will make your engine compartment stand out.
Pros of buying SRR16 1.65 7-16 roller rocker arms from Spotts Performance for a Pontiac V8 (400, 428, 455):1. Improved performance: Roller rocker arms reduce friction between the valvetrain components, which leads to smoother operation and increased horsepower.
2. Durability: The SRR16 design offers enhanced durability compared to traditional flat tappet camshafts, reducing the need for frequent maintenance.
3. Longevity: Roller rocker arms can last longer than flat tappet camshafts, which can result in cost savings over time.
Cons of buying SRR16 1.65 7-16 roller rocker arms from Spotts Performance for a Pontiac V8 (400, 428, 455):1. Cost: Roller rocker arms can be more expensive than flat tappet camshafts, especially when purchasing high-quality aftermarket components like those offered by Spotts Performance.
2. Installation complexity: Roller rocker arm systems can be more complex to install than flat tappet camshafts, requiring additional tools and expertise.
Conclusion:If you're looking to improve the performance and longevity of your Pontiac V8 (400, 428, 455) engine, Spotts Performance's SRR16 1.65 7-16 roller rocker arms are an excellent choice. While they may be more expensive and require more complex installation, the potential performance gains and maintenance savings make them a worthwhile investment for serious enthusiasts.
Recommendation:If you're considering purchasing SRR16 1.65 7-16 roller rocker arms for your Pontiac V8 (400, 428, 455) engine, we recommend working with a professional mechanic or engine builder to ensure proper installation and configuration. Additionally, it's essential to research and compare prices from various suppliers to ensure you're getting the best value for your investment.
Keep in mind your cam is increased with 6 ratio rockers may need elongating push rod holes usually over. 65 rockers, lifters, push rods and other Pontiac parts free fast shipping.
6 ratio stud size: 7 16 material: stainless steel includes poly locks: yes. Quantity: sold as set stainless steel material for superior strength extra large grunion increased durability high rpm stability with no deflection large roller tip less wear full needle bearing horsepower quicker response kit includes poly-locks construction and extra-large grunions give these rockers strength durability while eliminating deflection at high. Each parts full needle-bearing grunion allows for increased horsepower and quicker response, a large roller tip helps prevent wear. Make: Pontiac engine: or heads mounting style: stud rocker roller ratio: 1.
Will fit under stock valve covers when used with my ras4 rocker studs - see other offers not recommended for solid roller cams works factory iron, outbreak, Kr and aftermarket Pontiac heads 530 lift - always check clearance.