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Old 03-29-2010, 11:15 PM
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Sbc 400

I have a sbc 400 with stock crank rods and pistons and put in a cam, but people are telling me that the cam will be hitting with the piston and i don't want to start the engine because i will ruin it. the motor is already in the truck if some one can please help me out thaks
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Old 04-01-2010, 07:56 AM
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What are the cam specs? The cam will only hit the rods on a long stroke crank . The valves can hit the pistons if the lift is to much. Both can be found by turning the engine over by hand and listening.
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Old 04-01-2010, 03:23 PM
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We need the specs but I can say my 406 which is using OEM replacement pistons has no issues with a .586/.562 cam.
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