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454 to 500hp motor

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454 to 500hp motor

Old 07-31-2012, 02:13 PM
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Default 454 to 500hp motor

How much fab or changes if any are needed to go from a 454 to a 500hp blue merc
Martin718 is offline  
Old 07-31-2012, 10:42 PM
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If you are talking about swapping out your 454 to an hp 500, then its pretty much a drop in. If the 454 is a Gen IV then there are some very minor differences in the bolt size that holds the assessories on the heads but thats about it.
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Old 07-31-2012, 10:48 PM
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you will need a hd coupler,and a cooler and oil thermostat that comes with the hp500,if you are replacing a black motor.
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Old 07-31-2012, 10:50 PM
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u will also need to upgrade the exhaust system,or you will get reversion.
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