I just rebuilt a 350. when you install the gears the two dots have to allign, but for the #1 to be in the firing position the marks are opposite of each other. Every cam chain gear set is different but the easiest way to tell is to put the harmonnic balancer at 0 and see if both valve for the #1 cylinder are closed
The Firing order for a Chevy 350 is 18436572.
#1 cylinder is the one forward most, (front) drivers side, and a firing order 1.8.4.3.6.5.7.2
Start clockwise: firing order is 18436572
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The firing order of a Chevy Straight Six motor is 1, 5, 3, 6, 2, 4, going clockwise. The position of the number one cylinder is going to depend on the year of the motor.
1,8,4,3,6,5,7,2 Number one on the distributor will looking at it straight down at the 5 o clock position.
the timing or the firing order? the timing gears have 2 dots that line up when the timing is correct at top dead center. the firing order 18436572 and the cylinders are numbered as following, driver side 1357 and pass side 2468
1.8.4.3.6.5.7.2 standard Chevy timing/firing order. the #1 on the distributor will be pointing @ the #1 cyl when @ top dead center.( front drivers side.
If this is a 305/350/400 small block Take the lead from the coil to the distributor "OFF" to prevent the engine from firing. This will take two people or a remote starter. Turn the engine over until the mark on the tortional damper lines up with the center or O mark on the timing tab on the front of the engine fastened to the crankcase front cover and the engine is in the number one firing position. This may be determined by placing fingers on the nuber one valve as the mark on the damper comes near the O mark on the crankshaft front cover.If the valves are not moving the engine is in the number one firing position.If the valves move as the mark comes up to the timing tab the engine is in number 6 position and should be rotated one more complete turn to bring it to the number one firing position. Also take the cover off of the distributor to determine that the rotor is positioned properly pointing to the number one spark plug then follow the firing order for that engine should be 1,8,4,3,6,5,7,2 Wayne
4 DEGREES BTDC.
Chevy did not make the Wrangler, Jeep (Chrysler) did, and they did not come with a 350 - that's a GM engine.