Help to id heads
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I really dont want to get involved in your
contest.....
however, the link provided by 33tom did indicate that those heads were appropriate casting numbers for 77-79 425s...
moreover, a simple google search for "head casting number 1609423" produced quite a bit of information, including a link from a thread on this site...that confirmed the same info above...
maybe some decorum and a longer delay before the :kick: are in order....this is a friendly site...most of the time.
sorry, I dont know, nor do i care at this point, whether those heads could have been on 500s....but the research does not appear to confirm it.
contest.....
however, the link provided by 33tom did indicate that those heads were appropriate casting numbers for 77-79 425s...
moreover, a simple google search for "head casting number 1609423" produced quite a bit of information, including a link from a thread on this site...that confirmed the same info above...
maybe some decorum and a longer delay before the :kick: are in order....this is a friendly site...most of the time.
sorry, I dont know, nor do i care at this point, whether those heads could have been on 500s....but the research does not appear to confirm it.
Your heads may have been installed on a 500 block, or if the block was not identified it may have been a 425 All 472 and 500 blocks have serial numbers ending with 5200.
If you go to that site mentioned, www.cad500parts.com , and look at their 2008 calalog, you will find the "info pages". On the info page # 1 there is mention of the 425 engine and the 423 heads. The 423 heads have smaller ports than the 472 and 500 types, even though on a 500 they may increase comp ratio.
Hope this helps......
If you go to that site mentioned, www.cad500parts.com , and look at their 2008 calalog, you will find the "info pages". On the info page # 1 there is mention of the 425 engine and the 423 heads. The 423 heads have smaller ports than the 472 and 500 types, even though on a 500 they may increase comp ratio.
Hope this helps......
If you don´t read the tips you get you´ll never find the answer... Open your eyes and don´t write back such an bullshi....
Here is the answer you will find on the Engine ID Link:
Head # 1609423 means:
Year: 77-79
CID / L: 425 / 7.0
VIN: T
Description: T: FI (Analog Port)
Block #: 1609110
Bore: 4.080
CR: 8.2:1
Chamber: 96
Crank #: 1609142R
Stroke: 4.060
That´s enough????
Greetings from Germany... :cool2:
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