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| | | | Joined: Apr 2010 Posts: 48 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2010 Posts: 48 | OK, I have a 72 c 50 292 ci motor.the motor just had a rod go thur the side of the block! Ouch!So I have another 292 I can put in. The motor sat idle in a truck for 20 years and I put gas in carb and started right up after all those years.but do I need to just stop, rebuild the motor and start fresh? I'm also wondering if the driving 55 -65 MPH is too much for the motor with the 2 speed rear end and will I just blow up the motor even if I rebuild it? Your advice is well needed. Thanks! | | | | | Joined: Sep 2006 Posts: 2,393 Shop Shark | | Shop Shark Joined: Sep 2006 Posts: 2,393 | Before rebuilding I would check compression and running oil pressure. If they seem in specs it should run fine. The 292 is a work horse engine and if it was and will be taken care of, plenty of miles can be gained. Sorry, but I can't answer any thing about the two speed rear concerns you have.
Drew
| | | | | Joined: Feb 2004 Posts: 29,780 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,780 | The 2-speed rear end gives you two speed options- - - -slow and slower. Put a tachometer on it and keep the top RPM around 3,000-3500 for the best horsepower. The 292 engines from the mid-1970's are HP-rated at 3600 RPM, so winding the engine tighter than that is futile. Even if it runs faster, you're above the horsepower peak. Keeping the RPM between 2,000 and 3,500 will give you the best performance, and the 2-speed should allow you to do that under most normal operating conditions.
Jerry
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| | | | | Joined: Apr 2010 Posts: 48 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2010 Posts: 48 | | | | | | Joined: Apr 2010 Posts: 48 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2010 Posts: 48 | | | |
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