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1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
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351C swap??

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Old Mar 21, 2004 | 08:53 PM
  #16  
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all you have to do is clean the exhaust side out a little and take the bump out. If you have early 400 heads they don't have the bump.
 
Old Mar 21, 2004 | 08:56 PM
  #17  
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Well mine are 78.. I have a couple 76(i think) 400 heads that have had a vavle drop in them. They dotn have much of a bump but they are all rusty. I mgiht do alittle porting on mine.. jsut open them up some.. along with the intake too.. I cant mess anything up as long as i dont get into the valves right?? I know 2 stroke engines if you dotn port it right you can mess it up and make it run worse.. jsut wondering if truck motors would be teh same.
 
Old Mar 21, 2004 | 08:58 PM
  #18  
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leave the intake side alone, or only rust/carbon removal.
 
Old Mar 21, 2004 | 09:01 PM
  #19  
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I will probly get soem Headers for it.. My dad has JC whitney brand ones on his.. sounds really good. Are there any headers for them that make alot more power?? I seen in Summit some headers for $89.. ill probly buy those.
 
Old Mar 21, 2004 | 09:01 PM
  #20  
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Check with the cleveland engine forum for 351M/400 performance information.
 
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