1 8 4 3 6 5 7 2
Won't fire as in no spark? Replace the ingition module inside the distributor.
all chevy V8 are the same 18436572 in a clockwise distributor rotation when viewed from the top.
The spark plug gap on 1977 Chevy truck 454 should be set at .045 inches. Spark plugs are preset at the factory and should need no adjustments prior to being installed.
ALL Mopar V8s are ordered 1-8-4-3-6-5-7-2.
.045"
All V8 Chevy plug gaps in 1977 was factory .045
18436572
Not enough information to answer this question.
The spark plug firing order is ( 1 - 5 - 4 - 2 - 6 - 3 - 7 - 8 ) The distributor rotor turns COUNTERCLOCKWISE The marked # 1 position on the distributor cap faces to the REAR The engine cylinder locations are numbered : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of Ford F-250 with a 460 cubic inch V8 engine
A/C plug # R45TS and it gaps at 0.045 That is the factory plug.
THE COIL ON A 1977 CHEVY TRUCKIS IN THE DISTRIBUTOR CAP. TAKE THE PLUG WIRES AND HOLD DOWN RING OFFOF THE CAP TO EXPOSE THE COIL. WEDGEMAN
1 8 3 6 4 5 7 2. Good luck Scott-