BBC HEADS

Old 03-22-2011, 03:12 PM
  #1  
RAPPTOR23
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Default BBC HEADS

I NEED A HEAD WITH ABOUT 98 CC CHAMBER.. ALL HEADS I SEE ARE 112 TO 115 CC. THEY SAY THE DECK IS .400 THICK. IT CAN BE MILLED TO GET 108 CC OR LESS. WHAT HAPPENS TO, V/P CLEARENCE??THA VALVE LOOK DEEPER IN THE HEAD . I ASUME FROM THICKER D :shock: ECK??
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Old 03-22-2011, 07:27 PM
  #2  
markdunlap
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Default BBC

Maybe you need different pistons to use 119 cc heads like most BBC's are?

V/P clearance goes away as you cut heads down, at some point needing piston valve pockets to be deepened, which weakens pistons. Back to pistons again, not heads.
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Old 03-23-2011, 01:48 PM
  #3  
RAPPTOR23
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Default Re: BBC

Originally Posted by markdunlap
Maybe you need different pistons to use 119 cc heads like most BBC's are?

V/P clearance goes away as you cut heads down, at some point needing piston valve pockets to be deepened, which weakens pistons. Back to pistons again, not heads.
THANKS
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