388 Questions

Old 05-17-2010, 04:37 PM
  #1  
skipjobe
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Building a motor for a 69 Chevy pick up weekend warrior street truck pump gas. 350 block bored .0060 over. It has flat tops 3 3/4 stroke. CR figures 9.8 to 1
I have heard that this block tends to run hot with a +60 bore. second question, will this engine require an over size oil pan? My 383 lost oil pressure at about 5000 rpm before I put an after market pan.
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Old 05-17-2010, 08:19 PM
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poboyracin
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I've run .060" over blocks and as long as the cooling system is up to par, they've never ran any hotter than any other.

The stock pan will be fine as long as a standard volume oil pump is used.
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Old 05-18-2010, 04:08 AM
  #3  
curtisreed
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I would definitely sonic test the block. JMO

Curtis
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Old 05-18-2010, 04:38 AM
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bowhay
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depending on the block number .060 over can be a lil weak on a stock block, also depending on the clock number u may need a deep pan, #880 needs a deep pan but 010 and 547 dont
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Old 05-18-2010, 10:21 AM
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Tod74
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Originally Posted by bowhay
#880 needs a deep pan but 010 and 547 dont
Please explain
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Old 05-18-2010, 07:42 PM
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bowhay
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my last 385 was a 547 block and i didnt need a deep pan i used a stock one, my buddies 383 is an 010 and he ran a stock pan, but my new 383 is an 880 and i had the get a 6 quart tht was clearenced
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Old 05-19-2010, 01:35 AM
  #7  
Tod74
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Originally Posted by bowhay
my last 385 was a 547 block and i didnt need a deep pan i used a stock one, my buddies 383 is an 010 and he ran a stock pan, but my new 383 is an 880 and i had the get a 6 quart tht was clearenced
I think he was asking if he needed extra oil pan capacity to prevent loss of oil pressure at higher rpm's. ..not weather or not the pan would clear the crank.
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Old 05-19-2010, 04:36 AM
  #8  
bowhay
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aaahhhh i see lol my mistake
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Old 05-19-2010, 04:24 PM
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I've had crank, rod, piston, pan, clearence issues in the past.

Angry parts, wanted out!!
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Old 05-19-2010, 09:59 PM
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poboyracin
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Originally Posted by suicidebomb
I've had crank, rod, piston, pan, clearence issues in the past.

Angry parts, wanted out!!

LOL, yeah I had that problem also... and they got their way too!
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