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-   -   Where to get used stock Mag heads (https://www.offshoreonly.com/forums/general-q/205477-where-get-used-stock-mag-heads.html)

Eric S. 03-24-2009 06:51 PM

Where to get used stock Mag heads
 
Long story short, I lost a cylinder head today. I'm pissed and it's embarrassing to explain.

Anyways I have a Gen V Magnum 454. Does anyone out there know where I can get a used one. Doesn't have to be in great shape. I'm having the other surfaced and a valve job done anyways. I have heard that the auto heads are basically the same but have different exhaust valves. I would be open to this if it's true... Any info would be a great help. Thanks.

1BIGJIM 03-24-2009 07:27 PM

[QUOTE=Eric S.;2828225]Long story short, I lost a cylinder head today. I'm pissed and it's embarrassing to explain. [QUOTE]

No heads until you explain:party-smiley-004:

formula 382 sr-1 03-24-2009 07:31 PM


Originally Posted by Eric S. (Post 2828225)
Long story short, I lost a cylinder head today. I'm pissed and it's embarrassing to explain.

Anyways I have a Gen V Magnum 454. Does anyone out there know where I can get a used one. Doesn't have to be in great shape. I'm having the other surfaced and a valve job done anyways. I have heard that the auto heads are basically the same but have different exhaust valves. I would be open to this if it's true... Any info would be a great help. Thanks.

I have two sets of heads off a GenV hp500 $300.00 a set plus shipping.

Eric S. 03-24-2009 08:02 PM

Forgot to close the tail gate....

Formula, I don't have much to spend. I wasn't looking to blow a head gasket last weekend so I'm already spending a couple hundred more on the boat than I expected too. I bought the boat on the condition with the wife that it wouldn't become a money pit. I know what you are all thinking. Anyways, I'll let you know in the next few days. Thanks.

barry d. 03-24-2009 08:07 PM

damn $300 a set?!? are yours gold or standard cast iron...i bought an entire gen 6 longblock for $450. ;)
seriously though, this is a good start eric. i'll check a couple local boat places tomorrow for you and see if we can't come up with something. i'd say a used set of stock heads that still likely need surfacing, valve job, etc to make completely fresh would be worth $150 or so....

Eric S. 03-24-2009 09:20 PM

Formula,

Are these the same heads? If not what's different about them?

formula 382 sr-1 03-25-2009 03:54 PM


Originally Posted by Eric S. (Post 2828385)
Formula,

Are these the same heads? If not what's different about them?

Bigger valves, hp500's are Int 2.250 Exh 1.880

formula 382 sr-1 03-25-2009 03:55 PM


Originally Posted by barry d. (Post 2828317)
damn $300 a set?!? are yours gold or standard cast iron...i bought an entire gen 6 longblock for $450. ;)
seriously though, this is a good start eric. i'll check a couple local boat places tomorrow for you and see if we can't come up with something. i'd say a used set of stock heads that still likely need surfacing, valve job, etc to make completely fresh would be worth $150 or so....

Good for you !!!!:grinser010:

Eric S. 03-25-2009 04:15 PM

Thanks, I'll keep the option open for a few days. Like I said I'm trying to do this on the low.

Are there any other installation issues I would be concerned with? I assume they use the same head/intake gaskets. And the tapped holes for accessory brackets in the same locations. Do they use the same rockers and pushrods? Lastly, what is the casting number.

Thanks.

formula 382 sr-1 03-25-2009 04:43 PM

2 Attachment(s)

Originally Posted by Eric S. (Post 2828967)
Thanks, I'll keep the option open for a few days. Like I said I'm trying to do this on the low.

Are there any other installation issues I would be concerned with? I assume they use the same head/intake gaskets. And the tapped holes for accessory brackets in the same locations. Do they use the same rockers and pushrods? Lastly, what is the casting number.

Thanks.


Yes same gaskets,rockers,and pushrods. Here are the casting #'s


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