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Like new 821 or 0821 Rectangle port heads. 4-5 hours dyno time only. New valves (not lightweight LS3's) and PSI 1511 springs.
These are in excellent condition.
$780+shipping.
821 heads. 4-5 hours dyno time only. New valves and PSI 1511 springs.
04-29-2015, 12:09 PM
821 Rectangle Port LS heads, like new
