Join Date: Nov 2005
Location: East SF Bay Area
Re: Piston to valve clearance before installing cam
There are so many variables to this, more than cam specs, it's better to measure. Better safe than sorry.
Variables include: deck height, milled heads, compressed head gasket thickness, vavle size, pistons, how the pistons are clearanced ('eyebrows') for the valves.
With all of these variables, it wouldn't take much to be off, just a little. I can't think of anyone that would want to take on all that liability to develop a calculator.
1968 that started life and a 6 banger with a PG. Now it's a 350 with a TKO600, Moser 12 bolt, Speedtech LCA/UCA, ATS Tall Spindles, Hotchkis Springs, Forgeline ZX3P, C5 (Kore3) brakes with other cool stuff from Ron Davis, Vintage Air and soon to be Terminator EFI.
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