Which pistons do I have???
11-29-2017, 10:06 AM
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Which pistons do I have??? ya I know kind of a stupid question,.....
Long story short, I bought a used C5. Turns out it has a 402 in it that was probably build around 2008. crapped out the #7 cyl intake lifter so needs lifters and a cam. When I took it apart it had .080" thick head gaskets!!!!
has AFR 205 heads with 64-65cc chambers. Pistons were potentially Diamond, but the valve reliefs measure out deeper than what diamond specs in their catalog.... Measured .180" IN/ .130" EXH. Trying to figure out the manufacturer with out removing the piston. Otherwise I have to try to measure the cc of the reliefs with the engine in the car. Diamond said 2cc but that was with .165 IN/ .107 reliefs....
thanks
Long story short, I bought a used C5. Turns out it has a 402 in it that was probably build around 2008. crapped out the #7 cyl intake lifter so needs lifters and a cam. When I took it apart it had .080" thick head gaskets!!!!
has AFR 205 heads with 64-65cc chambers. Pistons were potentially Diamond, but the valve reliefs measure out deeper than what diamond specs in their catalog.... Measured .180" IN/ .130" EXH. Trying to figure out the manufacturer with out removing the piston. Otherwise I have to try to measure the cc of the reliefs with the engine in the car. Diamond said 2cc but that was with .165 IN/ .107 reliefs....
thanks
