Bolt on timing chain tensioner
I was going to say I put a Magnum V-8 chain tensioner (1st photo) in my 1965 273, but googled photos and nada. All I installed was an oil drip sheet (2nd photo). Glad I didn't since I read here that Magnum tensioners can fall apart when used against a standard chain. For the dripper, you leave out one bolt for the thrust plate. My factory 273 had a hollow bolt there to let oil from the valley drip out into the chain area. The sheet directs it to drip right on the chain, and is hopefully less likely to clog the bolt hole with gunk.
I was going to say I put a Magnum V-8 chain tensioner (1st photo) in my 1965 273, but googled photos and nada. All I installed was an oil drip sheet (2nd photo). Glad I didn't since I read here that Magnum tensioners can fall apart when used against a standard chain. For the dripper, you leave out one bolt for the thrust plate. My factory 273 had a hollow bolt there to let oil from the valley drip out into the chain area. The sheet directs it to drip right on the chain, and is hopefully less likely to clog the bolt hole with gunk.