Bad Memorial day
05-26-2009, 09:31 PM
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Bad Memorial day
Here are some pics from about 45 minuets after my boat broke down and some from this afternoon after I pulled the heads off. The motor is a mercury racing 500 bulldog and I was wondering where the best place to get a new block would be I am also having some trouble finding out if the block is a 502 or a 454 talldeck any help would be great
05-26-2009, 09:40 PM
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05-26-2009, 09:58 PM
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Front Of Block
I dont know if you can tell from this pic if not let me know and I will get some more tommarrow also ran the number stamped on the block and it says it is a 454t block
05-26-2009, 10:43 PM
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YEP,,454 talldeck bowtie ( truckblock )
U can find one for around 3000 + if u are lucky !!!!
Call this guy , STEVE 954 240 1074 !!!
I know he has some of them ,,but don't know if he is willing to sell !!
They are hard to find !
( u can tell by the little oiler tube in front above the WP ),,the one with the allen plug in there !
Last edited by DareDevil; 05-26-2009 at 10:45 PM.
05-27-2009, 05:25 AM
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You can quickly identify it at the upper waterpump bolts. On a shorty, the distance from the upper waterpump bolt to the deck of the cylinders will by ~0.200", and the tall deck is ~0.600", The difference is 0.400"
The tall motors have longer rods, which produce more torque - not noted for revs. Pushrods are also longer.
I don't think the 454 was ever offered in a tall deck - the 366 and the 427 were offered both ways, but I think the 454 and all later Mark IV blocks are all short deck, but not sure.
The tall motors have longer rods, which produce more torque - not noted for revs. Pushrods are also longer.
I don't think the 454 was ever offered in a tall deck - the 366 and the 427 were offered both ways, but I think the 454 and all later Mark IV blocks are all short deck, but not sure.
05-27-2009, 11:34 AM
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I have some stuff coming off the dyno next week that you might be interested in that would be turn key, and priced right. I am up in Conroe. Engines are down at Owens right now. PM me if you are interested. I can tell from the pics that your rigging would work fine on them.
