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Small block heads #447163
08/23/09 02:41 PM
08/23/09 02:41 PM
Joined: Apr 2006
Posts: 330
Indiana
C
Crabra Offline OP
enthusiast
Crabra  Offline OP
enthusiast
C

Joined: Apr 2006
Posts: 330
Indiana
What size valves do these casting numbers have.4027596 and 4027163.I know the 596's are 318 hp {came off stock 360}the 163's are 318 std.Thanks

Re: Small block heads [Re: Crabra] #447164
08/24/09 06:46 AM
08/24/09 06:46 AM
Joined: Jan 2003
Posts: 16,122
Grand Haven, MI
patrick Online content
I Live Here
patrick  Online Content
I Live Here

Joined: Jan 2003
Posts: 16,122
Grand Haven, MI
596's should be 1.88/1.6, the others 1.78/1.5


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