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block guard

  #1  
Old 03-07-2011, 08:40 AM
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Question block guard

what do you guys think, is it worth putting one in? i have heard mixed thoughts on a block guard. do you think it would be safe to run without one? i am building a b18b turbo for about 400whp.
 
  #2  
Old 03-07-2011, 08:44 AM
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I know nothing about them personally, so I Google'd it. Seemed pretty easy. Maybe you try dis time

http://www.google.com/search?hl=en&b...+it%3F&spell=1
 
  #3  
Old 03-07-2011, 05:29 PM
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Block guards go both ways. I know some people who swear by them, more people I know of are against them though. For 400 whp you might want to consider full sleeves before a block guard as you are starting to get pretty high in the hp numbers for the stock sleeves. A tech at work has a da he built, twin turbo, and he is looking to make 350-400 whp when he is done, and he is block guardless and sleeveless.
 
  #4  
Old 03-07-2011, 09:55 PM
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U cant go wrong with a block guard it wont hurt a thing how much boost u plan on runnin and stock pistons??
 
  #5  
Old 03-08-2011, 11:15 AM
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Originally Posted by 209Chris View Post
U cant go wrong with a block guard it wont hurt a thing how much boost u plan on runnin and stock pistons??
And how much experience with them do you have? That statement is far fro valid. It CAN hurt your engine. There's such a thing as thermal expansion rate which is different for different metals. The block guard is usually not of the same material as the block and sleeves and expands at a different rate. You can cause many issues there.
 
  #6  
Old 03-08-2011, 05:20 PM
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Cooling is also another aspect of the block guard that is highly debated as well. You are effectively making the motor a closed deck and even though the guards are drilled they are still restricting coolant.
 
  #7  
Old 03-08-2011, 10:59 PM
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Last 3 outta 4 motors I built had em never had an issue that same thermal expansion is what moves the cylinders around on hondas blowen head gaskets and such last engine I built went with a dart racing block those r closed deck motors that once again work fine as far as cooling I realize its all 1 type of alloy as opposed to block guards but ive ran these and havent had any issues at all
 
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