EQ Cylinder Heads
Whether you need stock or performance heads, EQ has what you need. We offer quality, durability, value, customer support and the best warranties in the business. 

EQ sells both bare and fully loaded cylinder heads.

  • EQ bare heads are ready to install to the drive train, so no porting or polishing is needed.
  • EQ loaded heads include OE-quality stainless steel valves, seals, valve springs and retainers.

Performance or stock: EQ cylinder heads are the best out of the box solution

Come to EQ for a full line of high performance and stock cylinder heads. EQ makes the best cylinder head, right out of the box.

EQ’s reputation for quality parts and incredible service extends to all our cylinder heads. We also stock cast iron and aluminum cylinder heads for Chevy, Chrysler, Ford, Isuzu, Mazda, Nissan, Mitsubishi and Toyota vehicles. Our stock cylinder heads offer unsurpassed warranties, including a parts and labor warranty to professional engine builders.

The International Motor Contest Association (IMCA) has selected the EQ spec Chevy cylinder head as an optional head for their Northern and Southern Sportmod divisions and IMCA has selected the EQ spec Chevy cylinder head for the Hobby Stock Division.

New for 2012: Racers can now use EQ’s cast iron Magnum cylinder head (Part #CH318B) as a stock replacement for three divisions: Hobby Stock, Northern and Southern SportMod. EQ's Magnum cylinder head replaces a stock 1992–2004 Chrysler 318/360 head and is machined with a pre-1990 LA-style intake pattern that still uses all Magnum rocker parts.

Our performance cylinder heads offer maximum power with minimum effort (and investment!). In fact, our 23 degree performance cylinder head was voted Best of Tech by Popular Hot Rodding. Right out of the box, EQ performance cylinder heads deliver improved flow and performance – that’s why we claim “Bolt On and Hold On!”

Our new crankshafts are designed to save you time and money, too. No welds, no grinding – just polish and install! No machining required.