big block heads

Old 10-04-2007, 06:06 PM
  #1  
allstarmom
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Default big block heads

i have a set of heads can anyone tell me what they came from#3964290 and i found what looks like kl99 on them and gm9T I haven,t a clue.
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Old 10-04-2007, 06:22 PM
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lookingaround
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try this site
http://www.mortec.com/castnum.htm
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Old 10-04-2007, 06:25 PM
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lookingaround
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here is what i found on moretec
3964290....69-70...oval..CLOSED..396, 402, 427, 454, 101cc chamber
Large or small hex spark
plugs used
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Old 10-05-2007, 04:54 AM
  #4  
allstarmom
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Default big block heads

thanks for the tip,i still want to find out what they came from,I,m cleaning out my husbands shop and I don,t want to make any mistakes.when i,m pricing anything.
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Old 10-05-2007, 08:16 AM
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edvancedengines
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Can you get us a picture of the combustion chambers?

If it is the head I think it is it has lots of street potential but little value becuase no one knows of the potential it has. If it is the other head I am thinking of it has also a low value but can work well in street applications with a little bit of piston work to clear the domes on the sides.

Ed
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Old 10-05-2007, 08:23 AM
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cepx111
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Hmm cleaning out the husband's shop huh, that's either a bad thing or a good one depends on the situation I guess.
Goodluck Charles
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Old 10-05-2007, 10:40 AM
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allstarmom
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its good before i sell another car or part i want to know what i have,i,ll get you a pic as soon as my daughter can come up.ya know how that goes.
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Old 10-08-2007, 06:38 PM
  #8  
burgessdg
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Default heads

My casting # book says that head is a 1970 oval port used on the following engines, 402 - light truck, camaro, nova, chevelle, and full size, 454 - 390 hp corvette.

Dan
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Old 10-14-2007, 11:10 PM
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davidstuff
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Default Big Block Heads

Hi, I saw your posting on the heads, and I am looking for a set of these with these dates codes for a chevelle I am building right now. I would really appreciate your letting me know if you would be willing to sell them to me. I have another pair of them that are dated in April of 70, that I could trade you if you still need a pair. Please let me know if you would be willing to sell. Please email me if you are willing to discuss this, thanks [email protected] thanks david
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