BBC Super Series Racing pistons dome top forged pistons with gas ports; CP Pistons Top of the line forged pistons for serious racers. Fits standard open chamber heads and Brodix BBC Xtra heads. 4.500 bore ; 4.250 stroke ; 6.535 rod ; 1.120 compression height ; top ring groove .043 ; 2nd ring groove .043 ; oil ring groove 3mm ; dome +46cc ; weight 579 grams ; high strength forged piston set for use in high performance and racing engines;. Set includes 8 forged pistons; 8 wrist pins; oil ring support rails when required and spiral locks. Highest quality and engineered for durability and maximum power output. Pistons are fully CNC machined and balanced to + / - 1 gram. Double pin oilers; pin fitting and pin lock removal grooves for easy lock removal are also included. Supplied with .990 x 2.750 wrist pins weighing 142 grams. Part number CP SS5400
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