Oil Cooler Line Size

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May 2, 2018 | 10:02 AM

98GMT6.0LSX

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From: Canton, OH

Oil Cooler Line Size

I am swapping a LQ9 6.0L into a 98 k1500 truck. I plan on making up my own lines for the oil cooler. The oil cooler itself is integrated into the stock 98 k1500 radiator. Question is I have a Oil Cooler adapter and the fittings on it are -10AN. Would running -10AN lines be too big for the system or will it not effect the oil system at all. Thanks ahead for all info and advice.

May 2, 2018 | 10:57 AM

DietCoke

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From: Richmond Hill, GA

-10 is pretty typical.

May 2, 2018 | 11:56 AM

98GMT6.0LSX

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Okay thanks.

May 5, 2018 | 02:02 PM

.boB

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From: Colorado Springs, CO

IMO (which is free, and probably overpriced) -10 is minimum size for any external oil component.

May 6, 2018 | 08:34 AM

RB04Av

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Factory LQ9 lines are about ½"; pretty much equivalent to #8. (might actually be metric in some nearby size but w/e) So yes, #10 should be fine in most situations.