HEAD MARKING
CHAMBER VIEW
CHAMBER VIEW
1968-1973
64 cc
75 cc
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3991 492: |
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HEAD MARKING |
CHAMBER VIEW |
CHAMBER VIEW |
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1968-1973 |
64 cc |
75 cc |
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YEAR |
CID / HP |
VALVE SIZE |
CC |
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IN |
EX |
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1968 |
302-290 327-300 |
2.02 2.02 |
1.60 1.60 |
64 |
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1969 |
302-290 350-300 350-350 |
2.02 1.94 2.02 |
1.60 1.50 1.60 |
64 |
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1970 |
350-300 350-350/370 |
1.94 2.02 |
1.50 1.60 |
64 |
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1971-1973 |
350- |
75 |
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NOTES: Large Ports. For heads prior to 1972 they have water jackets very close to the spring seat and need a special seat cutter when installing oversized valves. |
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SERVICE REPLACEMENT |
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Part No. |
MATERIAL |
SPARK PLUG ANGLE |
HEAT RISER |
INTAKE RUNNER VOLUME |
VALVE SIZE |
CC |
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IN |
EX |
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3987376 |
Cast Iron |
Straight |
Yes |
157 cc |
2.02 |
1.60 |
64 |
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NOTE: Large Ports. Screw in Studs. Guide plates. Originally installed on 302 Z-28 and 350 LT-1 |
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See Service Replacement Info for more information on this Cylinder Head |
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