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496 HO 425 h.p. hours

Old 03-03-2013, 10:30 PM
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Default 496 HO 425 h.p. hours

Assuming good oil and care, about how many hours could you expect a 496 425 h.p. engine to last if most of the hours were in the 3000-4000 r.p.m. range? Let's say a 35' stepped hull with twin engines and Bravo drives...
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Old 03-03-2013, 10:50 PM
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I have a friend who has a 2002 Nordic Heat with the 496 mag ho 425hp....So far he has 850 hours and the motor runs like a top! Its all original too--nothing has been done to it.
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Old 03-04-2013, 03:23 AM
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800-1200 or maybe even more.
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Old 03-04-2013, 09:44 AM
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Originally Posted by Griff
800-1200 or maybe even more.
i agree,the 496 in stock configuration is a dependable engine,but not one i would ever conceder supercharging.
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Old 03-06-2013, 01:47 PM
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I agree, at least 1000 hours.
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Old 03-06-2013, 03:32 PM
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Originally Posted by Pismo10
I agree, at least 1000 hours.
LUVLY , 850 HOURS TO GO THEN
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Old 03-06-2013, 04:15 PM
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Default 350 HRS = head job

Lost 2 intake valves and 2 exhaust valves

Luck of the draw I'm guessing, mine was either a monday or friday motor. always ran synthetic 20W-50 oil, wix oil filter, change oil every 20-30 hrs. always had good oil pressure, motor never got over heated..
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Old 03-06-2013, 05:04 PM
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Originally Posted by 288sunny
Lost 2 intake valves and 2 exhaust valves

Luck of the draw I'm guessing, mine was either a monday or friday motor. always ran synthetic 20W-50 oil, wix oil filter, change oil every 20-30 hrs. always had good oil pressure, motor never got over heated..
Did the valve springs fail first?
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