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Old 06-01-2002, 08:11 PM
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Question Will it last

I rebuilt my wife's 83 suburban, supposed to be 350, turned out to be 76 400. Motor had about 35000 miles on it and used alot of oil. Replaced cracked heads with 305 64cc heads, used cam that was in it 462/480 lift reset it to oem, added headers and performer carb. Just for fun ran it at the track and turned high 13's, figured comp is 12.35:1 and pushing 450 hp. Any ideas how long I can expect this engine to last mainly running short, low speed trips to town. Never built chev. before.

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Old 06-01-2002, 08:29 PM
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Hey I put 305 heads on a 350 with a cam .443/.465 lift motor lasted me 5 summers. It ran very strong. I do believe 305 heads are 58cc though not 64cc if you have flat tops I think your comp. would be around 11:1. I would think if your not racing it it should last 100k
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Old 06-02-2002, 05:57 AM
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if you didnt have the 305 heads drilled for the steam holes watch out stop n go in town kind of driving you could have a overheating problem
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Old 06-02-2002, 05:57 AM
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[ June 02, 2002: Message edited by: CARGUY ]</p>
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