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305 SPRINT CAR FLAT TOP

    PISTON DESIGN
  • Advanced, lightweight FSR forging that eliminates stress concentrations for superior strength
  • Stronger than traditional designs, but up to 20% lighter
  • Forged from low-silicon wrought 2618 aluminum alloy
  • Accumulator grooves for improved ring seal
  • Specifically designed for alcohol Sprint Car competition
    RINGS INCLUDED
  • Lightweight, low friction metric ring package included (file-to-fit)
  • 1.2mm chrome steel top ring, 1.2mm cast iron 2nd ring, 2.5mm standard tension oil ring

    PINS AND LOCKS
  • High quality 2.250" pin further reduces reciprocating weight
  • Carbon steel wire locks included
305 SPRINT CAR FLAT TOP
Std Bore: 3.736
Ring Package: 1.2mm, 1.2mm, 2.5mm Premium Rings Included
Part # CID Bore Stroke Rod
Lgth.
Block
Ht.
Comp.
Ht.
Head Cubic Centimeters
62cc
Compression Ratio
Dome
Vol.
Gram
Wt.
Footnote Oversize Recom.
Ring Set
306842 308 3.756 3.480 5.700 9.000 1.560 9.7 -3.1 Call M 0.020 JC2808-3760
293532 310 3.766 3.480 5.700 9.000 1.560 9.7 -3.1 378 0.030 JC2808-3770
293533 312 3.776 3.480 5.700 9.000 1.560 9.7 -3.1 381 0.040 JC2808-3780
295562 313 3.786 3.480 5.700 9.000 1.560 9.8 -3.1 385 0.050 JC2808-3789
293534 315 3.796 3.480 5.700 9.000 1.560 9.8 -3.1 389 0.060 JC2808-3800

- Denotes part # has been issued a new part #. A list referencing old part #s to their new counterparts will be available shortly.


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