sbc 350 oil pressure from 60 to 5

[bucket]

honest question - why would you recommend mechanical rather than electrical? I would have thought having a wire running the length to under the dash would be easier than a pipe, provide a faster signal, and not have the potential issue of a messy leak in the cab. I am assuming the electrical plumbs into a "mechanical" pressure sender on the engine block - what am I missing??

@Ricko1966 is spot-on. I only recommended a mechanical gauge because even the cheapest ones tend to be accurate in my experience. But a cheapo electric gauge setup can be off by 10 psi or so. Buying quality stuff (like Autometer) will be accurate either way, as long as the electric sender matches the gauge.

 

[1977C20Silverado]

Got it fixed. Replaced the oil pump and now it’s idling at ~55 psi

 

[GTX63]

It’s got good oil level, it’s 10w30 and I’ve put on about 600 miles since the last change. I just started it and it’s idling good around 20 psi. Idk what was wrong but it’s not happening now

Not intending to start a debate, but if you still have the original Gen 1 SBC, you might consider avoiding weights below 10w40, unless it is specifically made for older motors.