JEGS Big Block Chevy Aluminum Heads
Our big-block J-Series heads use the same airflow technology that our Pro Stock brigade has built and incorporated over the years to produce big horsepower! Every head is cast from virgin A356 aluminum, heat treated to a T6 condition for long lasting performance and precision CNC-machined. Complete heads include bronze guides, 10° locks, steel retainers, 7/16" rocker studs and 3/8" guide plates. Drilled and tapped for accessories. We use longer valves so you will need to check pushrod length. Exhaust port raised 0.625". Made in USA.
Note: Requires five longer than stock head bolts for each head (part # 070-135-3612 sold separately).
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