Item: JE Pistons, Lightweight, Gas Ported, BBC 555, Bore 4.560, Stroke 4.250, Rod Length 6.385, Dome 46cc, 695 Grams, Set
JE Pistons new F.S.R. hollow dome GP (Gas Ported) pistons are specifically designed for circle track and drag racing applications. Up to 100 grams lighter than traditional full round (including wrist pin and rings), but stronger and more durable due to modern FEA-designed forging. Deeper valve pockets to accommodate higher lift cams and milled cylinder heads. Accepts low friction .043/.043/3.0mm ring package. Dome configuration designed to accommodate most popular open chamber cylinder heads, including Brodix Head Hunter with up to 2.400? diameter intake valves.
Includes:
Pin #990-2500-18-51C (151g) Wire Locks 990-073-MW Lateral gas ports Accumulator grooves Contact reduction groovesCompression Ratio:
110cc 15.2:1 118cc 13.8:1 124cc 13.0:1Photo is for illustration purposes only
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