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Old 10-21-2018, 12:19 PM   #21
GTX5877
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Join Date: Jun 2005
Location: Albert Lea, MN
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Default Re: 360 mopar oiling

Old school lifters without oil band, better vs newer lifters that also fit magnum engines that have an oil band can be an issue with unbushed lifter bores. For reference I believe the Comp numbers are 821-16 for old style & 826-16 vs magnum style. Can have oil pressure loses from oil galleries leaking above or below the lifter bore.
Magnum style lifters have pushrod oiling and if you have ball/ball type hollow pushrods, you can be oiling the rockers from both directions. From the lifters and thru the block. Even though you think you are restricting thru the block, you may still be flooding the covers. Some blocks also hold 1/2 quart or more in the valley before draining to pan.

Many curse the work of tubing lifter oil galleries in a stock block, but I have 'never' spun a bearing in a tubed block even at 8000 in a 340. I'm sure Herb could attest to this.

Other problem areas can be from constant detonation on that particular cylinder from stock dual plane intake manifolds and tuning issues. Lean or high exhaust temp on that cylinder from poor factory intake?

Tom Hestness
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