new info
I bought an 86 c20 454 truck with no engine and tranny
The internet told me that 6.2's and 454's were interchangeable so when I put a 6.2 into the truck I had troubles....
the bolt holes wouldnt line up in the front mounts
I had to install the 6.2 frame brackest from the donor truck
that was 2 years ago. I threw a rod and am putting a 350 smalblock in it now.
I have put 454's in where there was a smallblock with no troubles so i figgure I can use the 454 mounts with the 350...
No dice same problem I had with the diesel
I get online...
And I discover...
that the 6.2 diesel and the smallblock chevy share the same engine mount and engine mount frame bracket and both are incompatible with the 454 brackets
so I put my 6.2 diesel mounts back in the frame...
and the 350 bolts right up perfectly...
there are only 2 torque converter options for a th400 and it isn't diesel and gas...
it's 3 lug or 6 lug
the 6 lug converter is a lower stall and is used in both diesel and gas trucks.
the 6 lug th400 converter can also be used in a th350
You need to mount your fuel filter so it's the highest point in the fuel system
Your cold idle circuit goes to the fast idle solenoid and fuel line heater (under the intake manifold) and gets wired through a temperature sender the same way you wire an electric choke.
Whatever you do...do not hook up an electric fuel pump...it wont run right.
the IDI diesels running a stanadyne injection pump (5.6, 6.2, 6.5, 6.9, 7.3) all use the pressure from the lift pump (your ordinary mechanical fuel pump) to control the govenor.
the lift pump for the diesels increase in fuel pressure as engine speed increases. the injection pump is calabrated according to standardized lift pump specifications.
Putting an electric fuel pump on, having a weak lift pump, or the wrong lift pump, having the fuel return lines misengineered, having a restricted fuel return... will send the wrong signal to the injection pump and it won't run right.
If you can figure out how mechanical injection works on a gas engine you can figure diesel injection... on a diesel the injection system works the same using different equipment. rather than having continual injection like with a hilborn unit...the diesel injection pump is also a distributor.