SMALL BLOCK CHEVY
BIG BLOCK CHEVY
FORD
MOPAR
PONTIAC
HONDA/ACURA
350 / 400 INVERTED DOME

  • 4032 low expansion high silicon aluminum alloy heat treated to SRP specifications
  • Ring land and crown thickness specifically engineered for mild turbo, supercharged and nitrous applications
  • Forced Pin Oiler for increased wrist pin lubrication
  • Pin fitting and double spiro locks included
  • 927-2750-150 wall wrist pin (130 grams) included
  • CNC Machined ring grooves accept 1/16, 1/16, 3/16 rings (Rings Sold Seperately)
  • Optional bearing steel pins available.

350 Series
Std Bore: 4.000
Ring package designed for: 1/16, 1/16, 3/16 Rings
 Tech and Installation Tips
Part # Cubic
Inches		 Bore Stroke Rod
Length		 Compression
Distance
Head Cubic Centimeters
58cc 64cc 70cc
Compression Ratio
Dome
Volume		 Gram
Weight		 Footnote Oversize Ring Set#
231315 350 4.000 3.480 5.700 1.560 8.9 8.4 8.0 -24cc 481 A STD J100F8-4000-5
139631 353 4.020 3.480 5.700 1.560 9.0 8.5 8.0 -24cc 491 A 0.020 S100S8-4020-5
139632 355 4.030 3.480 5.700 1.560 9.0 8.5 8.0 -24cc 492 A 0.030 S100S8-4030-5
139633 357 4.040 3.480 5.700 1.560 9.0 8.5 8.0 -24cc 503 A 0.040 S100S8-4040-5
139634 360 4.060 3.480 5.700 1.560 9.0 8.5 8.0 -24cc 505 A 0.060 S100S8-4060-5
139632 383 4.030 3.750 5.565 1.560 9.6 9.0 8.6 -24cc 492 0.030 S100S8-4030-5
139633 385 4.040 3.750 5.565 1.560 9.6 9.0 8.6 -24cc 503 0.040 S100S8-4040-5
139634 388 4.060 3.750 5.565 1.560 9.6 9.0 8.6 -24cc 505 0.060 S100S8-4060-5
231316 377 4.000 3.750 5.700 1.425 10.3 9.7 9.1 -16cc 449 STD J100F8-4000-5
139627 381 4.020 3.750 5.700 1.425 10.4 9.8 9.2 -16cc 451 0.020 S100S8-4020-5
139628 383 4.030 3.750 5.700 1.425 10.4 9.8 9.2 -16cc 457 0.030 S100S8-4030-5
148750 383 4.030 3.750 5.700 1.425 9.0 8.5 8.1 -31cc 469 0.030 S100S8-4030-5
259611 385 4.040 3.750 5.700 1.425 9.0 8.6 8.1 -31cc 481 0.040 S100S8-4040-5
139629 385 4.040 3.750 5.700 1.425 10.4 9.8 9.2 -16cc 467 0.040 S100S8-4040-5
139630 388 4.060 3.750 5.700 1.425 10.5 9.9 9.3 -16cc 473 0.060 S100S8-4060-5
146997 383 4.030 3.750 5.850 1.285 10.4 9.8 9.2 -16cc 434 0.030 S100S8-4030-5
203193 350 4.000 3.480 6.000 1.260 9.0 8.5 8.0 -24cc 426 A,B,L .STD J100F8-4000-5
203194 355 4.030 3.480 6.000 1.260 9.0 8.5 8.0 -24cc 439 A,B 0.030 S100S8-4030-5
203195 357 4.040 3.480 6.000 1.260 9.0 8.5 8.0 -24cc 441 A,B 0.040 S100S8-4040-5
203196 360 4.060 3.480 6.000 1.260 9.0 8.5 8.0 -24cc 453 A,B 0.060 S100S8-4060-5
148988 395 4.030 3.875 5.850 1.213 11.0 10.3 9.7 -14cc 417 B 0.030 S100S8-4030-5
144994 408 4.030 4.000 5.850 1.150 11.1 10.4 9.8 -16cc 409 B 0.030 S100S8-4030-5
231317 377 4.000 3.750 6.000 1.125 10.3 9.7 9.1 -16cc 390 STD J100F8-4000-5
138106 381 4.020 3.750 6.000 1.125 10.4 9.8 9.2 -16cc 400 B 0.020 S100S8-4020-5
138103 383 4.030 3.750 6.000 1.125 10.4 9.8 9.2 -16cc 403 B 0.030 S100S8-4030-5
138104 385 4.040 3.750 6.000 1.125 10.5 9.8 9.2 -16cc 405 B 0.040 S100S8-4040-5
138105 388 4.060 3.750 6.000 1.125 10.4 9.9 9.3 -16cc 416 B 0.060 S100S8-4060-5

400 Series
Std Bore: 4.125
Ring package designed for: 1/16, 1/16, 3/16 Rings
Part # Cubic
Inches		 Bore Stroke Rod
Length		 Compression
Distance
Head Cubic Centimeters
58cc 64cc 70cc
Compression Ratio
Dome
Volume		 Gram
Weight		 Footnote Oversize Ring Set#
231318 400 4.125 3.750 5.700 1.425 10.3 9.7 9.2 -21cc 473 STD S100S8-4125-5
139624 405 4.145 3.750 5.700 1.425 10.4 9.8 9.2 -21cc 479 0.020 S100S8-4145-5
139625 407 4.155 3.750 5.700 1.425 10.4 9.8 9.2 -21cc 485 0.030 S100S8-4155-5
139626 409 4.165 3.750 5.700 1.425 10.4 9.8 9.2 -21cc 489 0.040 S100S8-4165-5
206042 405 4.145 3.480 6.000 1.260 9.2 8.8 8.3 -26cc 458 A 0.020 S100S8-4145-5
206043 405 4.155 3.480 6.000 1.260 9.2 8.8 8.3 -26cc 464 A 0.030 S100S8-4155-5
259659 414 4.125 3.875 5.850 1.213 11.2 10.5 9.9 -16cc 427 B STD S100S8-4125-5
259660 418 4.145 3.875 5.850 1.213 11.3 10.6 10.0 -16cc 437 B 0.020 S100S8-4145-5
259661 421 4.155 3.875 5.850 1.213 11.3 10.6 10.0 -16cc 442 B 0.030 S100S8-4155-5
259616 427 4.125 4.000 5.850 1.150 10.9 10.3 9.7 -21cc 424 B STD S100S8-4125-5
259619 432 4.145 4.000 5.850 1.150 11.0 10.4 9.8 -21cc 434 B 0.020 S100S8-4145-5
259620 434 4.155 4.000 5.850 1.150 11.0 10.4 9.8 -21cc 436 B 0.030 S100S8-4155-5
231319 400 4.125 3.750 6.000 1.125 10.8 10.2 9.6 -16cc 410 B STD S100S8-4125-5
147548 405 4.145 3.750 6.000 1.125 10.9 10.3 9.7 -16cc 421 B 0.020 S100S8-4145-5
147549 407 4.155 3.750 6.000 1.125 11.0 10.3 9.7 -16cc 422 B 0.030 S100S8-4155-5
147550 409 4.165 3.750 6.000 1.125 11.0 10.3 9.8 -16cc 426 B 0.040 S100S8-4165-5

400 Series - Stock Deck Height (9.025") Block
Std Bore: 4.125
Ring package designed for: 1/16, 1/16, 3/16 Rings
Part # Cubic
Inches		 Bore Stroke Rod
Length		 Compression
Distance
Head Cubic Centimeters
58cc 64cc 70cc
Compression Ratio
Dome
Volume		 Gram
Weight		 Footnote Oversize Ring Set#
259616 400 4.125 3.750 6.000 1.150 10.3 9.7 9.2 -21cc 424 B STD S100S8-4125-5
259619 405 4.145 3.750 6.000 1.150 10.4 9.8 9.3 -21cc 434 B 0.020 S100S8-4145-5
259620 407 4.155 3.750 6.000 1.150 10.4 9.8 9.3 -21cc 436 B 0.030 S100S8-4155-5

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