blown bbc ring and bearing question
#1
Member
JUNIOR BUILDER
Thread Starter
Join Date: Jan 2006
Posts: 98
blown bbc ring and bearing question
i am about to assemble short block.4.5 bore 4.0 stroke dart block bbc.871 blown on race gas,i was going to use totalseal ts1 gaples rings and clevite h series bearings do you think this is a good choice or do you have other suggestions.also i believe the second ring is gapless what should i set the top ring end gap at?
#2
Senior Member
RACING JUNKIE
Join Date: Jan 2006
Location: La.
Posts: 2,890
Total seal makes a blower/nitrous ring set, might be a better choice than the TS1 set. H style bearing good choice, just make sure you put some clearance in them, I run .0025/.003 with steel tods and up to .0035 with alum rods, with 20/50 oil.
JMO
Zip.
JMO
Zip.
#3
Senior Member
RACING JUNKIE
Join Date: Sep 2007
Location: Belleville, IL
Posts: 658
Originally Posted by zipper06
Total seal makes a blower/nitrous ring set, might be a better choice than the TS1 set. H style bearing good choice, just make sure you put some clearance in them, I run .0025/.003 with steel tods and up to .0035 with alum rods, with 20/50 oil.
JMO
Zip.
JMO
Zip.
Since you're running a standard bore size, if it's not a street car or very little street car use (10%) run a dykes top ring and standard second.
If the pistons are gas ported, you can get away with their AP set.
Personally, I wouldn't run a gapless set with a blower. You would be well advised to call Total Seal and talk to them about what you are doing. They have VERY good tech people that will help you pick the correct ring for your application.
And I concur with Zip on the rod clearances, plus I run .0035 on the mains.
Brad Penn, Valvoline ZR1, or Joe Gibbs oil only for blower motors. We gotta have the good stuff. Don't run synthetics when breaking the motor in.
#4
Senior Member
RACING JUNKIE
Join Date: Dec 2004
Location: austin texas
Posts: 729
Why do you say no the gapless ring, since they do have a gap they just over lap, or atleast mine do. my blown bbc alky, i took two sets of z gap rings and run them top and middle. Have not had any problems i that i know of?
#5
Senior Member
RACING JUNKIE
Join Date: Sep 2007
Location: Belleville, IL
Posts: 658
Originally Posted by kwkracing
Why do you say no the gapless ring, since they do have a gap they just over lap, or atleast mine do. my blown bbc alky, i took two sets of z gap rings and run them top and middle. Have not had any problems i that i know of?
#7
Senior Member
RACING JUNKIE
Join Date: Sep 2007
Location: Belleville, IL
Posts: 658
No idea.
They and I both wanted to run a Dykes top ring, but unfortunately they didn't make one in my bore size 4.614.
So, the next best choice was to gas port the piston and run the AP rings.
They and I both wanted to run a Dykes top ring, but unfortunately they didn't make one in my bore size 4.614.
So, the next best choice was to gas port the piston and run the AP rings.