S58 Engine
2021 and up M3/M4 G80/82
M240 G42
Stage 1 (up to 1100HP)
84mm Piston/Rod/Oring
Stage 2 (1150+HP)
84mm Piston/Rods/Sleeves/Oring/Big headstuds
Stage 3 (1500HP proven)
3.2-3.4 liter Stroker Kit/Sleeves/oring/Big headstuds/Cylinder Head/custom pistons
Stage 1-3 includes
Italian RP "Silver Line" rod stage 1
Italian RP I beam "Gold Line" rod Stage 2
84mm Italian RP "Gold Line" piston with and upgraded wrist pins
King Coated Race bearings
Cometic MLX Gasket on stage 1
Custom O Ring/Gasket standard on stage 2-3
Special hone for cylinder walls stage 1
ARP Main Studs
ARP Head Studs ( CA625) stage1
ARP Custom "big stud" on stage 2 and 3
Balance crankshaft
Assembly/Blueprint
*New for 2023, ARP flexplate bolts and upgrade crank dampener bolts included
*Optional ductile iron sleeve with built in Oring. (stage 2-3)
Additional cylinder head work with valvetrain recommnded after 1000HP
Aftermarket Cams are optional
Supertech Valvetrain
Sodium filled inconel exhaust valves
Stainless Intake valves
5 and 6mm billet keepers
Beehive Springs and Titanium Retainers
Valve seals
Machining of cylinder head included race valve job, bowl area porting and diamond cut resurface. Proper install height is check upon spring installation making sure all heights and spring pressure is set correctly for the engine build.
New for Fall 2022 our Race Head. CNC Ported and Newen Radius Valve Job (best in the industry) The most import part of flow in the cylinder head is the valve job. Anyone can do a standard valve but the Newen Machine takes it to the next level. Our race valve job has proven to provided excellent flow and the best valve seal on the market.
Price includes free tear down for inspection, final longblock assembly and shipping prep if needed.
There's no warranty on engine builds, once the engine start up and it runs, thats it. We cannot be liable for engines because theres to many factors that goes on after start up. IE, injector clogged, wrong oil or abuse within the first few miles of engine running.