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Old 04-14-2002, 09:07 PM   #1
O'l Buck
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Location: Orleans, NE USA
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Post more head casting # help

Ok, I found 1 more set of heads in the junkyard, the casting #s is 3998991, which mortec shows to be 72-73 307 and 350 heads. 75cc chambers, are these any good to run on a 327???

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Ol' Buck: '72 Chevy 1/2T 4x4 shortbox stepside 350/350auto on '84
ralleys and 31/10.5s

Angel girl: 67 Cutlass convertible
330, 3spd stick

Greener: 90 GMC Jimmy
350/auto
Chad Stephens
Orleans,NE

no name yet: 72 442 under serious construction
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67 K-20 350, SM465, Eaton rear, 4.56 no spin option
00 Dodge 2500 4x4, 24V cummins, 5 speed

Chad
South Central Nebraska
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Old 04-15-2002, 12:11 AM   #2
70shortnphat
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Location: Richmond TX.
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These heads also have the small valves
1.72 intake 1.5 exhaust.
sorry.

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1970 short bed fleetside

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1949 all origional chevy 3600
1974 camaro
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Old 04-15-2002, 01:36 AM   #3
O'l Buck
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Post

well, it was worth a try anyway.

------------------
Ol' Buck: '72 Chevy 1/2T 4x4 shortbox stepside 350/350auto on '84
ralleys and 31/10.5s

Angel girl: 67 Cutlass convertible
330, 3spd stick

Greener: 90 GMC Jimmy
350/auto
Chad Stephens
Orleans,NE

no name yet: 72 442 under serious construction
__________________
67 K-20 350, SM465, Eaton rear, 4.56 no spin option
00 Dodge 2500 4x4, 24V cummins, 5 speed

Chad
South Central Nebraska
O'l Buck is offline   Reply With Quote
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