MOFOCO Super Street 040's(Pair)

MOFOCO Super Street 040's(Pair)


MOFOCO boasts the only completely MADE IN USA VW Aircooled Cylinder Heads. The 040 Super Street head is a performance replacement cylinder head with 37.5mm intake valves and 32mm exhaust valves. These heads have been ported and polished for better flow and more low end torque. We have specifically designed these castings for better cooling and better performance than original castings.

Mofoco 040 Super Street Flow Numbers---Tested at 25" with an IDF manifold

Lift                       Intake                  Exhaust

.100                       49                        42

.200                       97                        75

.300                      121                       94

.400                      132                      102

.500                      142                       109


Detailed specifications for the Mofoco 040 Super Street Head

37.5mm Stainless Intake Valve

32mm Stainless Exhaust valve

55cc No Step Combustion Chambers

Heavy Duty Springs

Aircraft Casting Technology

Smoother Port Design for Better Flow

Thicker Port Walls & Larger Intake Face

3/4 Inch Reach Spark Plugs

More Cooling Fins - Thicker & Stronger

Thicker Combustion Chamber Ceiling

Choose your bore: 85.5, 90.5, 92 or 94

Machined on CNC Milling Machines


These come standard to fit stock 85.5 Cylinders.

If you want larger bore please specify the size you need when placing your order.

Price: $674.99
Flycutt and CC Heads

Please specify CC in the order notes section during checkout

Flycutt from 46cc to 54cc  $70.00
Flycutt from 45cc to 35cc  $130.00
Flycutt from 28cc to 34cc  $230.00
Bore Heads for larger Cylinders
90.5 / 92mm  $50.00
94mm  $70.00
Add Dual Springs(Price per Pair)
Yes  $80.00
Quantity:  pair