Tell me about these heads?
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Tell me about these heads?
I have one aluminum head cast #3946073 good shape bare with oval exhaust and two iron heads cast #3964291 also in good shape bare with oval exhaust, Are they 396, 427 or 454, what are they worth?
Thanks Jack
Thanks Jack
Thread Starter
Intermediate
Joined: Oct 2010
Posts: 26
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For the aluminum 3946074 a web search found this info, 69-71 ,open chamber 118cc, Hi Perf. 375 L-89, 430 L-88/ZL-1 465 LS-6 and 7
looks like this is a good head for anyone in need, this head is bare and very very clean appears to have new seats and guides and helicoils in all threaded holes, no cracks or welds.
The Iron heads also come up with a Hi Performance application,
3964291 1969-70 396/402/427/ Closed 109cc 396/402/427/454 large or small spark plug, they are bare have a recently been bead blasted and probably need guides and seats and seats ground , still they are a good start for any one in need of HP heads.
Thanks Jack
Jack
looks like this is a good head for anyone in need, this head is bare and very very clean appears to have new seats and guides and helicoils in all threaded holes, no cracks or welds.
The Iron heads also come up with a Hi Performance application,
3964291 1969-70 396/402/427/ Closed 109cc 396/402/427/454 large or small spark plug, they are bare have a recently been bead blasted and probably need guides and seats and seats ground , still they are a good start for any one in need of HP heads.
Thanks Jack
Jack
Last edited by Jaaaaaaackman; Oct 10, 2010 at 11:54 PM.
Thread Starter
Intermediate
Joined: Oct 2010
Posts: 26
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Anyone have any knowledge to share? The aluminum head is dated 5-26-70
I am not a Chevy guy so these heads are not something I am up on......
I am not a Chevy guy so these heads are not something I am up on......
Last edited by Jaaaaaaackman; Oct 10, 2010 at 11:55 PM.
, why is that???????????
