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Old 09-25-2020, 09:40 AM   #144
GerhardH
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Join Date: Aug 2017
Location: South Germany
Posts: 527
Re: My 1968 C-20 Golden Anniversary Project

So back to the engine build. Happy to have cylinder head stands (Sealey VS1555.v2)

Heads are back from machine shop. Checked the surfaces and fitment (control by fine grinding with grinding paste)- ok

Valves from Manley inserted with a little bit grease on the stem.
Intake 2.020", 11/32 stem diameter, 4.880" length, #10650-8
Exhaust 1.600", 11/32 stem diameter, 4.910" length, # 10649-8

Than first measurements with the valve spring height micrometer 1.400 to 1.800 (SUM-900032), lost a couple of hours with wrong measurement because the valve retainer in my new kit is smaller in diameter than the stock one, therefore the retainer goes in the micrometer and the measurement was wrong.

Used Valve spring and retainer kit SUM-174001. (and this was wrong need SUM-174000 , see #146)

Some test measurement with the valve spring tester, found out difficulties to determine, the right shims,
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1968 CHEVROLET C20 Custom Camper 50th Anniversary, Long bed (LB) 8', 327 V8, Air Condition (AC), Power Steering (PS), Power Brake (PB), Z62 Custom & Comfort Appearance, Turbo Hydramatic TH 400
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Last edited by GerhardH; 09-26-2020 at 04:41 AM.
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