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Fair head milling price?

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Old Nov 1, 2016 | 07:41 AM
  #21  
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Originally Posted by madmann26
With this combo and .030 milling, .051 headgaskets, your CR will be around 9.5:1.

You loose compression from the 5.3 to the 243 heads because the 243 has a larger combustion chamber.

The 5.3 head has the smallest combustion chamber of any stock ls type head.
so i need to get them milled since they are going on a 5.3 correct? i was planning on getting the 243s, blower or not. and that was my plan was to have them milled 0.030 for the compression to come back to 9.5:1.
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Old Nov 1, 2016 | 07:46 AM
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Originally Posted by marineusmc4
so i need to get them milled since they are going on a 5.3 correct? i was planning on getting the 243s, blower or not. and that was my plan was to have them milled 0.030 for the compression to come back to 9.5:1.
Yes. Unless you want to leave the compression, as is, after the swap.
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Old Nov 1, 2016 | 07:50 AM
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Originally Posted by madmann26
Yes. Unless you want to leave the compression, as is, after the swap.
ya, i basically want to have the compression at stock numbers while an N/A setup. can always throw on some 862 heads if i ever sell the truck.
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Old Nov 1, 2016 | 10:38 PM
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Let me know the name of the shop you use, I've been curious about this in KC.
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Old Nov 2, 2016 | 12:42 PM
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Originally Posted by KC_kid
Let me know the name of the shop you use, I've been curious about this in KC.
a buddy recommended precision crankshaft in blue springs or lees summit, says they do really good work. he just got his block done there. ill check out other places too.
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Old Nov 15, 2016 | 08:49 PM
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I paid $400 for a hot tank, bead blast, 3-angle valve job, .030" mill, install BTR springs. A flat mill is $125. CA prices for everything are higher than most parts of the country, I'm sure.
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