Oil Pressure and Coolant Temp Sending Units - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ChrisCostlow · 10-27-2018, 12:49 PM

Hi Everyone

I have a new crate 350HO in my '72 Blazer. When it's running, the oil pressure gauge is pegged and the temp gauge never moves. I'm assuming it's because the gauges in the dash need a different electrical signal than what they're getting from the sending units with the newer engine.

Can I buy 72 era sending units and swap them with what's currently installed? It's still a Chevy Small Block, right?

Thanks in Advance!

Chris

10-27-2018, 12:49 PM	#1
ChrisCostlow Registered User Join Date: Sep 2011 Location: Big Bear Lake, CA Posts: 97	Oil Pressure and Coolant Temp Sending Units Hi Everyone I have a new crate 350HO in my '72 Blazer. When it's running, the oil pressure gauge is pegged and the temp gauge never moves. I'm assuming it's because the gauges in the dash need a different electrical signal than what they're getting from the sending units with the newer engine. Can I buy 72 era sending units and swap them with what's currently installed? It's still a Chevy Small Block, right? Thanks in Advance! Chris

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