4 BTC what is the timing on a 1996 chev 350 marine 275 hp
between 8/4 degas btdc
8 degrees before top dead center
6 degrees before top dead center
4 degrees BTDC / Before top dead center.
4-degrees BTDC. Before top dead center. The Heavyduty sets at 8-degrees BTDC.
8 degrees before top dead center.
Stock timing is 6 degrees before top dead center.
8 Degrees BTDC. ( before top dead center )
MOST OF THE TIME IT IS 6"DEGREES Before Top Dead Center with hose connected
12 degrees Before Top Dead Center (BTDC)
26-28 Before Top-Dead-Center (BTDC) in euro model at 3000rpmapprox. 8 degrees at idle
Generally, 8 degrees before top dead center is typical of Chevrolet V8 engines for many years including your 1985 model.