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Re: oil pressure for 5.7L
My 89 K1500 with the 5.7L has 40 psi at idle and it pegs the gauge at higher rpm, cold. When It’s warm it has 30 psi at idle and around 40 at higher rpm. That’s with 5w30 oil.
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89 Chevy K1500, Extended Cab, Long Bed, 5.7L, 700r4 tranny, 10 bolt rear
Things Done- Flowtech Headers, Heartthrob Deep Tone Dual Exhaust, Airaid TBI Spacer, K&N Intake, 3" Performance Accessories Body Lift, 285 75 R16 Pro Comp A/T Tires, 16" Americain Racing Outlaw 2 Rims, Fabricated Bumper Replacement.
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