Are these heads screwed up?
11-02-2011, 08:13 PM
#1
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Are these heads screwed up? I picked up an LQ9 from a guy who had already started "cleaning up" the heads. He took too much off in the bottom right corner of the intake runners and now there is a small ridge in the transition into the vertical wall of the intake runner. I will try to attach pictures. Would you guys use them? Don't really want to port them. He only touched the intake runners. Thanks.
11-02-2011, 09:10 PM
#2
Looks like the individual polished the runners...A MAJOR NO-NO !!!
If these heads are to be used I would re-sand them with a coarse (36 or 60)
grit cartridge roll on a die grinder. Exhaust ports and combustion chambers
are OK to polish just NOT the intakes.
If these heads are to be used I would re-sand them with a coarse (36 or 60)
grit cartridge roll on a die grinder. Exhaust ports and combustion chambers
are OK to polish just NOT the intakes.
11-02-2011, 10:31 PM
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I have the opportunity to pick up a set of 243 heads that have just been milled .010. I could pick those up but was worried about the CR being a little high. I know I could bleed some off with the right cam, but I don't want to have to turn a lot of rpms to make power. I also want to be able to run pump gas with absolutely no problems.
11-02-2011, 10:51 PM
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I have the opportunity to pick up a set of 243 heads that have just been milled .010. I could pick those up but was worried about the CR being a little high. I know I could bleed some off with the right cam, but I don't want to have to turn a lot of rpms to make power. I also want to be able to run pump gas with absolutely no problems.
