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BOSS 302 Dome

  • Ideal for high performance street/strip or vintage road racing.
  • Forged from Premium 4032 aluminum alloy
  • Forced Pin Oiler for increased wrist pin lubrication
  • Solid dome w/ special profile fits small chamber Australian 302 2V head. Can also be milled flat for use with aftermarket heads
  • CNC Machined ring grooves accept 1/16, 1/16, 3/16 rings (Rings Sold Separately)
  • .912 x 2.750 x .140 straight wall wrist pin (123g), pin fitting and double spiro locks included
Boss 302 Series
Std Bore: 4.000
Ring package designed for: 1/16, 1/16, 3/16 Rings
Part # CID Bore Stroke Rod
Lgth.
Block
Ht.
Comp.
Ht.
Head Cubic Centimeters
52cc 60cc 74cc
Compression Ratio
Dome
Vol.
Gram
Wt.
Footnote Oversize Recom.
Ring Set
289554 304 4.020 3.000 5.155 8.195 1.540 11.9 10.5 8.9 3.5cc 536 D,S,M 0.020 S100S8-4020-5
289555 306 4.030 3.000 5.155 8.195 1.540 11.9 10.6 8.9 3.5cc 540 D,S 0.030 S100S8-4030-5
325194 308 4.040 3.000 5.155 8.195 1.540 12.0 10.6 8.9 3.5cc 543 D,S 0.040 S100S8-4040-5

- 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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