2X Entries For Our 25th Anniversary Sweepstakes!
BMW Performance Cylinder Heads
Build it once and build it right
2X Entries For Our 25th Anniversary Sweepstakes!
M7X39
Upgraded Head Gasket For Gen 1 B58!
For Gen 1 B58 Cars
This product was last offered at the strikethrough price on
05-06-2026
Quality retainers from Supertech
Quality retainers from Supertech
Quality retainers from Supertech
M7X68MM
This product was last offered at the strikethrough price on
07-06-2026
The perfect seal for repairing, replacing, or upgrading your valves and stem seals!
Two required per valve, necessary for use with certain supertech valves
35x5.97x117.50mm/ SS/Blk. Nitrided/Stk.size
For repair or changing valves in the cylinder head
Includes all the valve stems needed for repairing, replacing, or upgrading your BMW's valves and stem seals!
Quality retainers from Supertech
The perfect seal for repairing, replacing, or upgrading your valves and stem seals!
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