The BimmerHeads Race M20 cylinder heads are for those who are truly power hungry. This version of our 885 head is great for those planning to build high horsepower stroker M20 engines or turbo monsters. This is what we would consider to be a “Stage 3” cylinder head. This head comes standard with new OEM BMW dual valve springs and Supertech stainless steel black nitride valves with the options to upgrade to our performance dual springs and +1mm oversized Supertech valves. The Supertech +1mm valves use a stainless steel black nitride intake valve and an inconel exhaust valve. Our Race head also allows the option of coolant jacket welding for high boost applications. Our Race cylinder heads are completely torn down and rebuilt receiving the following:
Valve grinding & valve seat grinding
New valve guides
New valve seals & cam seals
New intake studs & exhaust studs
New rocker arm hardware & eccentrics
Refurbished and coated camshaft gear
New cam gear cover, & rotor mount
New Heavy Duty rocker arms
Extensive porting & polishing by hand (including combustion chamber)
Please allow 5 weeks build time.
Price INCLUDES a refundable $300 core charge. Once you have received your BimmerHeads cylinder head please re-use our packaging to send your core back to us for a refund.