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SP/AP46 Pistons with WD45 Crank
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PA185 View Drop Down
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Joined: 08 Mar 2019
Location: Pennsylvania
Points: 67 		Post Options Post Options   Thanks (0) Thanks(0)   Quote PA185 Quote  Post ReplyReply Direct Link To This Post Topic: SP/AP46 Pistons with WD45 Crank
    Posted: 04 Mar 2021 at 8:52am
Question about the AP/SP46 M&W, WD45 crank combo.
For the 13:1 compression set up will the factory felpro head gasket hold?
Or do you have to run a copper head gasket with an o ringed head?
Looking for input from people who have ran the set up or are familiar with it.
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 20523 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 04 Mar 2021 at 10:08am
I always used a stock OEM head gasket from the old days. Now, todays head gasket isn't the laminated metal one from yesteryear, but I still think you'll be OK. Do a cold retorque after you've run it a couple of times down the track. Ignition timing will need to be retarded somewhat with the higher compression.
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steve fischer View Drop Down
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Joined: 11 Jul 2011
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Points: 971 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve fischer Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2021 at 7:50am
I have run stock gaskets also have some extra ap46 and ap48 pistons
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