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EQ Magnum Heads

Small-Block Mopar
Posted March 23 2010 07:41 PM by Johnny Hunkins 
Filed under: Tech

EQ's Mopar Magnum cylinder head.

Engine Quest’s new Magnum Mopar head offers serious race-quality flow at a budget, cast-iron price.

The Engine Quest cast-iron Magnum cylinder head is a power improved alternative to stock that offers better flowing intake and exhaust ports for enhanced horsepower and torque. Designed with a 172cc intake runner volume and 62cc combustion chamber, EQ’s Magnum heads have an exceptionally smooth casting for immediate bolt-on performance. Made in Australia, these heads offer excellent quality at an affordable price with no additional machining, porting, or polishing required.

Engine Quest offers its Magnum cylinder head for early- and late-model engines. EQ Part No. CH318B is a 1992–2004 Chrysler 318/360 head machined for a pre-1990 LA-style intake pattern that still uses all Magnum rocker parts. EQ’s Part No. CH318A covers the same Chrysler engine series, however, it features the 1992-2004 Magnum intake pattern.

Like all cylinder heads from EQ, these high performance Magnum heads are produced using EQ’s specialized flow-cast technology. EQ has improved on the original design with a thicker deck for added strength, added hardened exhaust seats for greater resistance to cracking, and redesigned the water flow system for improved thermal conductivity.  With CNC-machined guides and seat, a superior port finish for increased flow, and a three-angle valve finish, EQ’s cylinder heads offer the best of both worlds—OE fit and greatly improved durability and performance.

For more information, phone 800-426-8771, or visit

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