Mocal Thermostatic Oil Filter Sandwich Plate for Gen 1-2 SBC, Mk. 1-6 BBC Engines

Only 2 left
Regular price $189.50
Designed for Vehicles / Universal (no vehicles listed)

The early versions of the Chevrolet Small Block (SBC) and Big Block (BBC) engines featured a unique oil filter sealing surface that creates a challenge when trying to find an appropriate oil filter take-off or sandwich plate. This unit allows the user to plumb in a remote oil cooler system on Gen 1-2 Small Block Chevrolet and Mk. 1-6 Big Block Chevrolet engines.

This sandwich plate also has a built-in 180°F (82°C) thermostat which bypasses the oil cooler until the oil has reached its minimum operating temperature. This results in quicker engine warm-ups over-cooling of the engine oil.

Features and Benefits

  • Constructed from billet aluminum
  • 180°F (82°C) built-in thermostat
  • Sandwich plate rotates 360 degrees around the inner extension screw for optimal positioning of adapter fittings
  • Features two female 22mm ORB ports


  • 1x Thermostatic oil filter sandwich plate
  • 1x 13/16'' oil filter extension screw

Installation Notes

  • Note: Lowers the oil filter by 1.5'' (38 mm)


  • Gen I & II V8 Chevrolet small-block (SBC) engines with a 13/16'' oil filter thread
  • Mark 1-4 V8 Chevrolet big-block (BBC) engines with a 13/16'' oil filter thread
  • Gen 5-6 V8 Chevrolet big-block (BBC) engines with a 13/16'' oil filter thread


Part #
Part Weight
1.40 lb (0.64 kg)
Primary Material
6061-T6 aluminum
Type II Anodized
Thermostat Stabilization Temp
180°F (82.2°C)
Thermostat Activation Temp
180°F (82.2°C)
Full Flow Temp
203ºF (95ºC)
Minimum Operating Temperature
-40°F (-40°C)
Maximum Operating Temperature
302°F (150°C)
Inlet Port Size
M22x1.5 Female
Outlet Port Size
M22x1.5 Female
Maximum Operating Pressure
300 psi (20.68 bar)
Max Recommended Flow Rate
Up to 20 GPM (76 LPM)
Fluid Compatibility
Engine oil
Sensor / Accessory Port 1
Sensor / Accessory Port 2