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Old 11-30-2019, 08:16 PM   #1
Phil Gillespie
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Join Date: Sep 2011
Location: Christchurch New Zealand
Posts: 1,612
Default 8ba Heads 7RT to EAB.

So just cross checked clearances prior to getting EAB Heads milled.
The gasket I used to check was a Felpro with 50 thou at fire ring.
My new Felpro 7525 measure 68 thou at fire ring.
So figure to allow 50 thou on the new gaskets for calculation purposes.
Tighest clearances are at 4 and 8 pistons 95 and 98 respectively. These were at centre area of piston. Used 4 balls in total at each piston.
For the recommended 40 to 50 clearance that gives 50 to 55 as a good range.
Torque up at 3 cycles to 60 to 65 ft/lbs.
Think I'm on right track. Yes?
Phil NZ
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