Prototype Open Chamber L88/ZL1 Head
This head recently came to me out of a shop in the midwest in a package deal. I thought it was pretty cool and thought I would share some pics with anyone else who has a sickness for this stuff like I do.
This head has the end plugs and angled exhaust port flanges like cast iron and 392 and 842 aluminum heads. It has open combustion chambers and round exhaust ports as found on the 3946074 head. It has a raised casting number pad with no numbers on it and 2 other casting pads with no numbers. The numbers may have been removed by GM or the shop that has the head, I don't know. It looks like the head was used for flow testing. The intake ports have the walls beneath the valves filled as shown. I removed the filler for one to be sure there was no damage underneath.
Anyway, I just wanted to share with anyone into this stuff.
Happy holidays,
Jason
Last edited by SuperNovaSS; 12-20-2018 at 01:12 AM.
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