SMALL BLOCK CHEVY
BIG BLOCK CHEVY
FORD
MOPAR
PONTIAC
HONDA/ACURA
HIGH COMPRESSION DOME

  • Hollow dome design fits most open chamber STD GM®, Dart®, and Brodix® Heads
  • Forged from Premium 2618 aluminum alloy
  • CNC machined domes with radiused valve reliefs provide optimum flame travel
  • Pin fitting and double spiro locks included
  • 990-2930-150 wall wrist pin (150 grams) included
  • CNC Machined ring grooves accept 1/16, 1/16, 3/16 rings (Rings Sold Seperately)
  • Fits tall deck, when used with .400 long rods.
  • Will not fit GM Signature Series or Edelbrock Cylinder Heads: P/N# 60549, 60559, 61559, 60449, 60459, 61459, 60479, 60499

BBC High Compression Dome
Std Bore: 454 = 4.250, 502 = 4.470
Ring package designed for: 1/16, 1/16, 3/16 Rings
 Tech and Installation Tips
Did you know? - we also offer a complete line of pistons for this particular application in our JE Pistons product line? Click here to check them out.
 
Part # Cubic
Inches		 Bore Stroke Rod
Length		 Compression
Distance
Head Cubic Centimeters
112cc 118cc 124cc
Compression Ratio
Dome
Volume		 Gram
Weight		 Footnote Oversize Ring Set#
139530 460 4.280 4.000 6.135 1.645 13.7 12.8 11.9 48cc 662 0.030 S100S8-4280-5
139531 466 4.310 4.000 6.135 1.645 13.9 12.9 12.1 48cc 690 0.060 S100S8-4310-5
139532 469 4.320 4.000 6.135 1.645 13.9 12.9 12.1 48cc 689 0.070 J100F8-4320-5
139533 475 4.350 4.000 6.135 1.645 14.1 13.2 12.3 48cc 702 0.100 S100S8-4350-5
139534 502 4.470 4.000 6.135 1.645 13.7 12.8 12.0 41cc 702 .STD J100S8-4470-5
139535 508 4.500 4.000 6.135 1.645 13.8 12.9 12.2 41cc 719 0.030 S100S8-4500-5
139536 515 4.530 4.000 6.135 1.645 14.0 13.1 12.3 41cc 731 0.060 S100S8-4530-5
152152 522 4.560 4.000 6.135 1.645 14.0 13.2 12.4 39cc 717 0.090 S100S8-4560-5
140684 460 4.280 4.000 6.385 1.395 13.7 12.8 11.9 48cc 620 0.030 S100S8-4280-5
140685 466 4.310 4.000 6.385 1.395 13.9 12.9 12.1 48cc 634 0.060 S100S8-4310-5
140686 469 4.320 4.000 6.385 1.395 13.9 13.0 12.8 48cc 643 0.070 J100F8-4320-5
140687 475 4.350 4.000 6.385 1.395 14.1 13.2 12.3 48cc 659 0.100 S100S8-4350-5
140682 508 4.500 4.000 6.385 1.395 14.0 13.1 12.3 41cc 668 0.030 S100S8-4500-5
140683 515 4.530 4.000 6.385 1.395 14.0 13.2 12.4 41cc 686 0.060 S100S8-4530-5
152154 522 4.560 4.000 6.385 1.395 13.7 12.8 12.1 39cc 672 0.090 S100S8-4560-5
152155 531 4.600 4.000 6.385 1.395 13.9 13.0 12.3 39cc 697 0.130 S100S8-4600-5
139835 460 4.280 4.000 6.535 1.245 13.7 12.8 11.9 48cc 585 B 0.030 S100S8-4280-5
139836 466 4.310 4.000 6.535 1.245 13.7 12.8 11.9 48cc 599 B 0.060 S100S8-4310-5
139837 469 4.320 4.000 6.535 1.245 13.7 12.8 11.9 48cc 606 B 0.070 J100F8-4320-5
139838 475 4.350 4.000 6.535 1.245 14.0 13.1 12.3 48cc 621 B 0.100 S100S8-4350-5
152159 508 4.500 4.000 6.535 1.245 13.7 12.8 12.1 41cc 634 B 0.030 S100S8-4500-5
152160 515 4.530 4.000 6.535 1.245 13.9 12.9 12.0 41cc 650 B 0.060 S100S8-4530-5
152161 522 4.560 4.000 6.535 1.245 13.7 12.8 12.1 39cc 636 B 0.090 S100S8-4560-5
152162 531 4.600 4.000 6.535 1.245 13.9 13.0 12.3 39cc 655 B 0.130 S100S8-4600-5
139537 489 4.280 4.250 6.135 1.520 13.8 12.9 12.1 43cc 626 0.030 S100S8-4280-5
139542 496 4.310 4.250 6.135 1.520 13.8 12.9 12.1 43cc 647 0.060 S100S8-4310-5
139543 498 4.320 4.250 6.135 1.520 13.8 12.9 12.1 43cc 652 0.070 J100F8-4320-5
139544 505 4.350 4.250 6.135 1.520 14.0 13.1 12.3 43cc 664 0.100 S100S8-4350-5
139831 489 4.280 4.250 6.385 1.270 13.8 12.7 11.8 43cc 574 B 0.030 S100S8-4280-5
139832 496 4.310 4.250 6.385 1.270 13.8 12.7 11.8 43cc 592 B 0.060 S100S8-4310-5
139833 498 4.320 4.250 6.385 1.270 13.8 12.9 12.1 43cc 595 B 0.070 J100F8-4320-5
139834 505 4.350 4.250 6.385 1.270 14.0 13.1 12.3 43cc 611 B 0.100 S100S8-4350-5
140328 533 4.470 4.250 6.385 1.270 13.9 12.8 12.0 36cc 609 B .STD J100S8-4470-5
140329 540 4.500 4.250 6.385 1.270 13.9 12.8 12.0 36cc 625 B 0.030 S100S8-4500-5
140330 548 4.530 4.250 6.385 1.270 13.8 13.0 12.0 36cc 640 B 0.060 S100S8-4530-5
152156 555 4.560 4.250 6.385 1.270 13.6 12.8 12.1 33cc 631 B 0.090 S100S8-4560-5
152157 565 4.600 4.250 6.385 1.270 13.8 13.0 12.3 33cc 650 B 0.130 S100S8-4600-5
140341 540 4.500 4.250 6.535 1.120 13.9 12.8 12.0 36cc 596 B 0.030 S100S8-5000-5
140342 548 4.530 4.250 6.535 1.120 13.9 12.8 12.0 36cc 611 B 0.060 S100S8-4530-5
231510 555 4.560 4.250 6.535 1.120 13.9 12.8 12.0 36cc NEW B 0.090 S100S8-4560-5


- 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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