Vortec Head castings?
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Supreme Member
Joined: Mar 2009
Posts: 1,402
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From: Sussex County, NJ
Car: 1994 Z28
Engine: 355 LT1
Transmission: T56
Axle/Gears: 3.42
Vortec Head castings?
From all the flow numbers I've been reading and GM's tests, it seems the "885" casting flows significantly better then the 906's and 062's.
Does anybody have any information on this casting? They seem to flow as good as most of the aftermarket vortec-style heads. I've never heard of them before today.
Does anybody have any information on this casting? They seem to flow as good as most of the aftermarket vortec-style heads. I've never heard of them before today.
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