Magnus ARP2000 Head Studs for McLaren M838T/M840T Unitronic it provides a 42% increase

it provides a 42% increase in core volume and a 69% increase in external fin surface area

304 Stainless Steel construction - genuine American 304SS material to withstand the elements and abuse

• Return Line Quick Disconnect

990" Diameter Bore Size: 98

Racing engines use high-conductivity metals like copper for the sheet ring to manage heat

Magnus ARP2000 Head Studs for McLaren M838T/M840T Unitronic it provides a 42% increaseMagnus Motorsports ARP2000 head studs for McLaren M838T E and M840T E engines. Full set is a direct OEM replacement to factory spec with no block adjustments necessary to handle high horsepower over stock for street and track builds. 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, Sabre M840TE: GT, GTS Purchase