COMP Cams Camshaft CB 321Jr-12

Marsoni

M251S

$286.02

Get it in 3 business days with 1 day shipping. Friday, May 29

COMP Cams Camshaft CB 321Jr-12BBC 1965 66 396 c. i. d. models have an oiling groove in the rear journal. The listed part numbered cams will not fit these models, so if you require a Camshaft with the oiling groove, please call us at 1 800 999 0853 or contact us, and we will assist you with placing an order. WARNING: Camshaft Optimized for use with a Melanized or Nitrided distributor Gear. Not compatible with cast or Steel Gears without similar surface treatments. Failure to

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I used this to change the oil on my BMW M8 with the S63 engine. It was a perfect fit. It extended far enough onto the filter housing to be quite secure with no risk of slipping off and stripping the housing. It was snug on the housing and did not bind up due to having a loose fit. The tool feels well-built and I suspect it will outlive me given my occasional personal use. It would still probably hold up well even for daily shop use as long as it was not abused (repeatedly dropped, slammed around, etc).

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Reviewed in the United States on September 8, 2025