Thread: I 250 ?
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Old 09-20-2002, 05:07 AM   #29
'68OrangeSunshine
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Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,622
I'm about to rebuild the L-6 292 that was in my truck when I bought it.
In '77, I pulled it and stored it when I had just finished rebuilding a '67 292 .030-over, w/forged TRW pistons, all the rest stock and heavy duty. Offy 4Bbl intake, Clifford Research headers, Mallory coil, Holley 4160. Ran like a beast until this summer. Then after a tankful of wallyworld's cheapest gas, it started to go sour. It wouldn't tune up. I've been on it since late July. Turns out, the harmonic balancer went bad and ground into the timing gear_cover. After a new HB, I changed out distributor, and all ignition components, rebuilt the 390 Holley but it still wouldn't run right. Now I've sunscoped it and the shop guys found cyls 3 + 4 were dead. I will troubleshoot for mice, rags, FOD in the intake, then check out valve springs and lifters on all cylinders, but it may be cheaper in the long run to build up my spare block and head and start fresh. After only 250,000 miles and 25 years! Is that gratitude? (LOL)
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Every 25 years I like to rebuild that 292, whether it needs it or not.
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