Sparkplug firing for chevolet inline 6cyl 235 ci year 1954

GM can check it for you against the engine number.

does motor have side inspection covers for lifters < if so its a 250

Code 316 is an extension of your Code 304. 316 means its misfiring in the first 1000 RPM's and 304 means number 4 cylinder is the problem cylinder.
Could be a bad wire, coil, or sparkplug.

Hello, according to my manual the 3789404 is the casting number for the 292 cubic inch inline-6 cylinder block produced from 1963-1976

I do not show a 3764478 number...3764476 is a 235 CID inline-6 from years 1958-1962
These are Chevrolet castings.

I hope this helps.

the point gap is 0.019 for new and 0.016 for used hear is the page from the manual.

They had several available for that year it looks like a V-6 model and several V-8 models. I have attached the link for your review. Either copy the link or paste it into your web browser. Here is the link:

http://en.wikipedia.org/wiki/Oldsmobile_Cutlass_Supreme#Fourth_generation:_1978.E2.80.931987

I hope this helps you out and if it does please give me a YES on the web page you just received my response on. Thank you

most all v8's have the same firing order which is 1,8,4,3,6,5,7,2. sparkplug gap seems fine. with the engine off, bend the sparkplug wires between your fingers, if small cracks appear then replace them. number one sparkplug is located at the front driver side of the engine, front to back on this side are cylinders 2,4,6, and 8 respectively. turn the engine to the compression stroke on number one, pull the cap, the rotor points where number one will be.

153624

According to Chilton's manual, it is 1-5-3-6-2-4. Hope this helps.

HI. Click here to access a diagram of the correct order.