aeroflow's big block chevy cylinder heads are designed for entry-level street performance engines and ideal for operating in the idle to 6750 rpm range. made from a356 aluminium castings.
these complete heads include larger than-stock 1.625" (41mm) diameter valve spring with damper to handle up to 0.850" (21.5mm) maximum valve lift. recommended spark plugs are 14mm x 3/4" reach with flat gasket seat.head specs:
|part type||cylinder heads|
|hose end socket type||no|
|push to connect type||no|
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