• Fits automatic and manual transmissions.
• Universal block hugger design.
• Fits D-Port cylinder heads including ZZ4 crate engines.
• Will fit most angle plug heads including factory Chevrolet 'Bow-Tie' heads.

Emission Code:

• The product accompanying this document is legal only for off-highway use(except in California or states that have adopted California emission standards),racing use or for use on pre-emission-controlled motor vehicles/motor vehicleengines (pre-1974 domestic vehicles certified to California standards, pre-1974domestic vehicles certified to federal standards and all pre-1974 foreignvehicles), per the manufacturer's application