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Smog pump date code
I have a pump with 13881Z stamped on it is this a 68 pump also I have seen with a S at the end of the date code but not a Z
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#2
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I found this on CRG....Joe
The last digit is the configuration code of the pump. The 67 pumps are coded A and C. (67 Corvette pumps are coded P and are unique to that application.) The 68 pumps with a pressure relief valve installed in the pump were coded Y. Non-pressure relief valve 68 pumps were coded Z. 69 and later pumps (without a pressure relief valve) were coded S.
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1968 Z/28 Corvette Bronze. Black Hounds Tooth. 02E Los Angeles born 3/13/1968 pnt OO 1969 SS396 Yellow/Yellow 08E Norwood born 8/28/1969 pnt 76E 1970 'cuda Moulin Rouge, 440-6, 4 speed |
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#3
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ok thanks so it looks like a 68 pump without the reliel valve, did a certain model use the with or with out on the valve
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This is also from CRG....Joe
The 68 pumps used on Z28's and big blocks had a pressure relief valve installed on the side of the pump. The Z28 relief valve has a green plastic plug and the 396 relief valve has a black plastic plug The 68 pumps for L6, 327, and 350 engines and all 69-and-later pumps did not have the pressure relief valve on the pump; it was incorporated into the diverter valve.
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1968 Z/28 Corvette Bronze. Black Hounds Tooth. 02E Los Angeles born 3/13/1968 pnt OO 1969 SS396 Yellow/Yellow 08E Norwood born 8/28/1969 pnt 76E 1970 'cuda Moulin Rouge, 440-6, 4 speed |
The Following 2 Users Say Thank You to X66 714 For This Useful Post: | ||
Bill Pritchard (10-06-2022), mhm1966 (10-06-2022) |
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