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rod · 06-15-2012, 06:33 PM

will be putting together a new short block for a bracket racer. he has a set of older TRW forged SBC pistons [12 to 1] the previous block had .007" clearance. i believe that is too much for a drag engine. however with the AZ heat, i also believe .0055" is too tight.
you're experience and or your thoughts please.
thanks rod in AZ

06-15-2012, 06:33 PM	#1
rod Member Join Date: Dec 2009 Location: Kingman, NW AZ. in the middle of the longest stretch of Route 66 Posts: 314 Likes: 0 Liked 20 Times in 15 Posts	TRW piston clearance? will be putting together a new short block for a bracket racer. he has a set of older TRW forged SBC pistons [12 to 1] the previous block had .007" clearance. i believe that is too much for a drag engine. however with the AZ heat, i also believe .0055" is too tight. you're experience and or your thoughts please. thanks rod in AZ