Hamilton 12V Head

Jeremyn21

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Aug 21, 2015
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I have a new hamilton 12v head that has been ported and polished by them. It has the large valves in it and 165# beehive springs. The intake has been milled off. Looking to get 4500 shipped
 

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I thought the larger valves required the dual Springs
 
Depends on the definition of "Large valves" The valves Hamilton sells, has on their website, and this head is designed for, they refer to as "Large valves for 12 valve" because they are larger than a stock valve. They are as big as you can go in a std 5.9 bore. They can be used with single springs.
 
Depends on the definition of "Large valves" The valves Hamilton sells, has on their website, and this head is designed for, they refer to as "Large valves for 12 valve" because they are larger than a stock valve. They are as big as you can go in a std 5.9 bore. They can be used with single springs.


Good to know. Thanks
 
The grooves sure don't look near big enough to accommodate fire rings.
 
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