Edelbrock aluminum heads
#2
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Join Date: Apr 2001
Location: West Los Angeles, CA
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Yes running, yes good valves. Had difficulty getting correct springs for HR Cam. The Marine version of the heads come w/o springs. They do not have a real thick casting. I would not use them on a high hp blower engine.
Ed B
Ed B
#3
Charter Member # 545
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When they showed the new 525 at Miami last year, If I remember right I saw a set of their heads on that motor. Not sure if Mercury uses them on all of them but that ought to tell you something about them.
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Join Date: Feb 2002
Location: Michigan
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Had their aluminum Performer RPM oval port heads on the 454 in my former boat. With their RPM oval port dual plane intake manifold, 227/235, .594"/.609" 112 degree hydraulic roller cam and mild 34 degree total ignition advance, the engine dyno'd at 464 HP and 510 Torque.
I wasn't looking for the last shred of output - more interested in reliable/no-fuss operation which they gave me.
I wasn't looking for the last shred of output - more interested in reliable/no-fuss operation which they gave me.