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Magnus L19 Main Bolts for McLaren M838T/M840T
Magnus Motorsports L19 main bolts for McLaren M838T and M840T engines. Full set of 20 bolts is a direct OEM replacement. Magnus used bolts on the mains instead of studs as original to stop any oil leakage that could occur, and also offer new sealing washers.
Vehicle Fitment:
McLaren 3.8L & 4.0L V8 Twin-Turbo
• M838T: 625C, 650S, 675LT, MP4-12C, MSO 688 HS
• M838TE: 540C, 570S, 570GT, 600LT, 620R
• M840T: 720S, 750S, 765LT, Senna, Elva, Speedtail
• M840TE: GT, GTS
Purchase Includes:
(10) Large Main Bolts with sealing washers
(10) Small Main Bolts with sealing washers
More from Magnus:
The dimensions are exactly to manufacture specifications and no adjustment to the block is necessary. As with our other track application engine programs, we reached out to ARP to manufacture these bolts out of L19 to ensure a clamping force of over 1000psi. These bolts are used exclusively in the Magnus 1300hp+ crate engines.
Important Handling Instructions:
Wear Gloves! L19 is highly sensitive to moisture and chemical corrosion. When you open the package for installation, ensure the bolts are kept completely clean, free of condensation, and lightly lubricated with ARP Ultra-Torque assembly lubricant right up until they are torqued down inside the block.
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