Gm Chevy Heads Double Humps 64cc 3927186 3/8 Studs Polished Ported

Description

Gm Chevy Heads Double Humps 64cc  3927186 Cam Lifters Gear to Gear High Performance.
64 cc with 1.94 and 1.50 Valves will accept up to 500 lift with High Lift Springs. I was running 1.6 on Intake and 1.5 on exhaust that gave me approx 25 hp increase. 3/8 Srew in Studs,Heads and Cam was used on a 383 Stroker  with lots of power.
Heads are 68 - 72 Era.
Heads have Extra mounting Holes
Great Running Condition, Polished Intake Runners with Stainless Guides, high lift springs,  One head has very tiny piece missing on one of the mounting
Pickup only, Make payment arrangements before Purchase.
432 mst shelf
If listed as PICK UP only, please contact for shipping and payment arrangements prior to purchase.
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