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Old 07-13-2026, 11:20 PM
Hardkor455 Hardkor455 is offline
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Join Date: Mar 2014
Location: Sacramento
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Quote:
Originally Posted by GordonGeesey View Post

But once fully warmed up, at 850rpm idle, the OP is only about 8-10psi. It is unsettling to see the hot OP that low. It goes up to 20-40 at cruise rpm when fully hot. The oil level is full, and the oil/filter are both fresh. No noises from the engine. It runs really strong

When I asked the previous owner if the seemingly low OP was normal, he stated "It has OP, right? Then don't worry about it". He said a full-warmed up engine in otherwise good condition doesn't need much OP at idle with no load on it.
What if it goes down to zero at idle fully warmed up? 80 cold, 60 warm, but then in drive thru at dutch bros. the temp was closing in on 220 and the oil pressure was at zero

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1970 Pontiac Lemans Sport
455 700r4 355:1 HR Edelbrock heads, Pro Flo 4 EFI

1969 Corvette Stingray
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1971 Firebird
1969 400 .030 over, stroked to 467
Kaufman D Ports at 340 cfm, Full forged bottom end via butler, Hydraulic roller, 700R4, 3000 stall,
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