If it was painted at all probably Chevy orange engine paint
TBI heads/ Throttle body injection
The engine in your truck is a Chevrolet 350 if it a stock engine!
The '41 truck engines were a charcoal gray
No manual adjustment. The PCM takes care of that electronically.
The main features of the Chevrolet C5500 is that of a flatbed 4X4 truck. It features a 6.6L V8 Duramax 8 cylinder diesel engine and is equipped with a 5 speed automatic transmission.
The cylinder heads are diffrent. Intake from 1998 truck will not bolt up to 1990 heads.
If you have a 4 cylinder engine, the number one cylinder is the one closest to the front of the truck. If you have a 6 cylinder, it the on the driver side closest to the front of the truck