The new 31-Piece Titanium PowerHead Stud Kit from Buckshot Racing #77 is precision-engineered for Mercury 2.0L, 2.4L, and 2.5L 2-stroke V6 outboards with 15-inch and 20-inch ROS midsections, accommodating both smooth-back and ridge-back mid-sections.
 
This high-performance kit is designed to withstand the extreme demands of outboard drag racing, tunnel boat racing, offshore racing, and circle boat racing. Engineered for durability and performance, this stud kit provides exceptional strength, lightweight efficiency, and corrosion resistance.
 
This custom Mercury V6 powerhead stud kit is designed for Mercury Racing 15" and 20" ROS Smooth-Back and Ridge-Back mid-sections with a one-piece tuner plate. The kit includes:
 
2 shorter studs for the front of the block 
4 longer titanium studs for the sides
4 shorter titanium studs for the rear one-piece exhaust tuner plate
8 case-hardened stainless Mercury thick washers
2 stainless flat washers
8 stainless steel Nylock nuts for secure side and rear studs
2 stainless steel Nylock JAM nuts for front studs (not shown)
1 Allen key wrench for easy installation
 
Aerospace-Grade Titanium Construction
 
The Ti-6Al-4V titanium (atomic number 22) used in this stud kit is a high-performance material widely used in aerospace and Formula 1 racing. This material provides:
 
45% weight reduction compared to stainless steel
55% lighter than alloy steel, reducing overall engine weight
30% higher strength than stainless steel, enhancing stress resistance under extreme performance conditions
 
By reducing overall weight while increasing strength, which are critical factors in competitive boat racing.
 
Advanced Engineering and Ease of Installation
 
To simplify installation and maintenance, our broached US SAE 5/32-Inch Hex Key Head design allows easy insertion and removal with a standard 5/32-inch Allen wrench.  This design significantly reduces busted knuckles, powerhead rebuild time and enhances setup efficiency.
 
Additionally, these powerhead studs have a super convenient broached Allen Head end, ensuring straightforward removal and replacement during routine maintenance.
 
Superior Surface Treatment and Corrosion Resistance
 
The Rainbow PVD (Physical Vapor Deposition) coating offers:
 
2000-3000 HV hardness (up to 10x harder than electroplated finishes)
0.5-5 microns ultra-thin layer, reducing wear by 30-70%
30-50% increased corrosion resistance
Performance stability up to 500°C (932°F)
Low friction coefficient (as low as 0.1) ensuring precise torque application without thread damage
 
High-Performance Compatibility and Part Numbers
 
This Titanium PowerHead Stud Kit is specifically designed for Mercury Racing 15-inch and 20-inch ROS mid-sections with a One-Piece Tuner Plate. Compatible with these Mercury OEM Part Numbers:
 
8M0034420
822358
8M0034437
847532
8M0034430
847529
96908
2-70833
12-45175
12-F1778
2550W23059
F1778
45175
70833
856774
12-856774
8M0214963
8M0034443
847530
97008
 
Each stud in this kit is manufactured from aerospace-grade Ti-6Al-4V titanium, offering exceptional strength and corrosion resistance. Unlike chromoly steel, titanium provides superior weight reduction without sacrificing durability.
 
The 25-Piece Titanium PowerHead Stud Kit is a high-performance upgrade for Mercury 2.0L, 2.4L, and 2.5L V6 outboards, offering lightweight efficiency, superior strength, and unmatched corrosion resistance.
 
This kit is designed for top racers and performance enthusist who demand top-tier reliability, reduced weight, and improved engine performance.
 
Contact Mike Hill at +1-714-697-1716 or email mike@buckshotracing77.com for technical support.