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WINDSOR 302/351W FLAT TOP PROFESSIONAL SERIES

    PISTON DESIGN
  • Advanced, lightweight FSR forging that eliminates stress concentrations for superior strength
  • Up to 20% lighter than traditional equivalent
  • High-silicon 4032 aluminum alloy for reduced piston-to-wall clearance and quiet operation
  • Accumulator grooves for improved ring seal
  • Designed for normally aspirated or moderate forced induction/nitrous applications
  • Now includes high performance skirt coating!
    RINGS INCLUDED
  • Lightweight, low friction metric ring package included
  • 1.2mm top ring, 1.5mm Napier 2nd ring, 3.0mm standard tension oil ring
  • Napier 2nd ring for improved oil control
  • Minimal filing required

    PINS AND LOCKS
  • High quality 2.250" pin further reduces reciprocating weight
  • Carbon steel wire locks included
Professional Series Flat Top - 302 Block
Std Bore: 4.000
Ring package: 1.2mm, 1.5mm, 3.0mm Premium Rings Included
Part # CID Bore Stroke Rod
Lgth.		 Block
Ht.		 Comp.
Ht.
Head Cubic Centimeters
58cc 64cc 70cc
Compression Ratio
Dome
Vol.		 Gram
Wt.		 Footnote Oversize Recom.
Ring Set
271099 347 4.030 3.400 5.400 8.200 1.100 10.9 10.1 9.5 -5 395 B 0.030 JG31F8-4030-2
279524 348 4.040 3.400 5.400 8.200 1.100 10.9 10.2 9.5 -5 399 B 0.040 JG31F8-4040-2
271097 331 4.030 3.250 5.400 8.190 1.165 10.4 9.7 9.1 -5 407 B 0.030 JG31F8-4030-2
279671 316 4.030 3.100 5.400 8.180 1.230 10.0 9.3 8.7 -5 417 0.030 JG31F8-4030-2
279670 306 4.030 3.000 5.090 8.190 1.600 9.7 9.0 8.4 -5 466 D 0.030 JG31F8-4030-2


Professional Series Flat Top - 351W Block
Std Bore: 4.000
Ring package: 1.2mm, 1.5mm, 3.0mm Premium Rings Included
Part # CID Bore Stroke Rod
Lgth.		 Block
Ht.		 Comp.
Ht.
Head Cubic Centimeters
58cc 64cc 70cc
Compression Ratio
Dome
Vol.		 Gram
Wt.		 Footnote Oversize Recom.
Ring Set
271099 434 4.030 4.250 6.250 9.475 1.100 13.3 12.4 11.6 -5 395 B 0.030 JG31F8-4030-2
279524 435 4.040 4.250 6.250 9.475 1.100 13.4 12.4 11.6 -5 399 B 0.040 JG31F8-4040-2
279671 418 4.030 4.100 6.200 9.480 1.230 12.9 12.0 11.2 -5 417 0.030 JG31F8-4030-2
279671 408 4.030 4.000 6.250 9.480 1.230 12.6 11.7 11.0 -5 399 0.030 JG31F8-4030-2
279670 392 4.030 3.850 5.956 9.481 1.600 12.2 11.3 10.6 -5 466 D 0.030 JG31F8-4030-2

- 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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