BBC HEADS
03-22-2011, 02:12 PM
#1
Member
MASTER JOURNEYMAN
Thread Starter
Join Date: Sep 2007
Posts: 45
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??
03-22-2011, 06:27 PM
#2
Senior Member
DYNO OPERATOR
Join Date: Jan 2004
Location: central Illinois
Posts: 459
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.
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.
03-23-2011, 12:48 PM
#3
Member
MASTER JOURNEYMAN
Thread Starter
Join Date: Sep 2007
Posts: 45
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.
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.
