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Ran across these on e-bay, CRANE CAMS Rocker Arms 69770-16. I didn't know after-market adjustable rockers existed. Don't need since already have a 273, and these look identical. The interesting thing is they appear to use springs on the shaft to space the rockers. Seems that would allow the...

Got an e-mail from GM Performance promoting their new LSX 454 R crate engine, which they expect to dominate the tracks (how did they get my name?). Not a racer, just daily driver, but thought many of the latest design features are interesting to older Mopar fans: we're excited about ... a...

Two of the 5/16-18 threads in my harmonic balancer were stripped. This describes a cheap repair. Metal inserts are only $0.70 at Ace Hardware, but you must buy the $20 special tap, often not in stock. I found a better approach. Ace carries STI brand, as does Autozone (recall). I still recall...

Below are photos of two harmonic balancers. The left was on a '65 standard 273 (2 barrel carb, flat-top pistons) and the right on a '65 Hi-Po 273 (4 barrel carb, raised pistons). One difference is the std one has casting label "S-2" and Hi-Po has "S-5". Interestingly, the "S-5" is...

Timing Cover Info for LA engines. Hope this helps someone. I understood there were only 2 designs for LA engines (64-71 and 72+), but have run across 4 versions recently. Of course, Magnum engines have still another design w/ reverse rotation water pump (for Serpentine belt). I think...