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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

Click here to see matching JE Pro Seal Head Gaskets!

Tech and Installation Tips
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
148988 395 4.030 3.875 5.850 9.001 1.213 11.0 10.3 9.7 -14cc 417 B 0.030 S100S8-4030-5
329683 377 4.000 3.750 5.700 9.000 1.425 8.9 8.4 8.0 -31cc 455 M STD J100F8-4000-5
231317 377 4.000 3.750 6.000 9.000 1.125 10.3 9.7 9.1 -16cc 390 STD J100F8-4000-5
231316 377 4.000 3.750 5.700 9.000 1.425 10.3 9.7 9.1 -16cc 449 STD J100F8-4000-5
329684 378 4.005 3.750 5.700 9.000 1.425 9.0 8.5 8.1 -31cc 460 0.005 J100F8-4000-5
329680 378 4.005 3.750 5.700 9.000 1.425 10.3 9.7 9.1 -16cc 452 0.005 J100F8-4000-5
329692 378 4.005 3.750 6.000 9.000 1.125 10.3 9.7 9.1 -16cc 392 B 0.005 J100F8-4000-5
329693 379 4.010 3.750 6.000 9.000 1.125 10.3 9.7 9.1 -16cc 396 B,M 0.010 J100F8-4010-0
329681 379 4.010 3.750 5.700 9.000 1.425 10.3 9.7 9.1 -16cc 455 M 0.010 J100F8-4010-0
329685 379 4.010 3.750 5.700 9.000 1.425 9.0 8.5 8.1 -31cc 465 M 0.010 J100F8-4010-0
329686 381 4.020 3.750 5.700 9.000 1.425 9.0 8.5 8.1 -31cc 469 M 0.020 S100S8-4020-5
139627 381 4.020 3.750 5.700 9.000 1.425 10.4 9.8 9.2 -16cc 451 0.020 S100S8-4020-5
138106 381 4.020 3.750 6.000 9.000 1.125 10.4 9.8 9.2 -16cc 400 B,M 0.020 S100S8-4020-5
138103 383 4.030 3.750 6.000 9.000 1.125 10.4 9.8 9.2 -16cc 403 B 0.030 S100S8-4030-5
139628 383 4.030 3.750 5.700 9.000 1.425 10.4 9.8 9.2 -16cc 457 0.030 S100S8-4030-5
148750 383 4.030 3.750 5.700 9.000 1.425 9.0 8.5 8.1 -31cc 469 0.030 S100S8-4030-5
146997 383 4.030 3.750 5.850 9.010 1.285 10.4 9.8 9.2 -16cc 434 0.030 S100S8-4030-5
139632 383 4.030 3.750 5.565 9.000 1.560 9.6 9.0 8.6 -24cc 492 0.030 S100S8-4030-5
139633 385 4.040 3.750 5.565 9.000 1.560 9.6 9.0 8.6 -24cc 503 0.040 S100S8-4040-5
259611 385 4.040 3.750 5.700 9.000 1.425 9.0 8.6 8.1 -31cc 481 0.040 S100S8-4040-5
139629 385 4.040 3.750 5.700 9.000 1.425 10.4 9.8 9.2 -16cc 467 0.040 S100S8-4040-5
138104 385 4.040 3.750 6.000 9.000 1.125 10.5 9.8 9.2 -16cc 405 B 0.040 S100S8-4040-5
139629 385 4.040 3.750 5.700 9.000 1.425 10.4 9.8 9.2 -16cc 467 0.040 S100S8-4040-5
139630 388 4.060 3.750 5.700 9.000 1.425 10.5 9.9 9.3 -16cc 482 0.060 S100S8-4060-5
329687 388 4.060 3.750 5.700 9.000 1.425 9.1 8.6 8.2 -31cc 485 0.060 S100S8-4060-5
138105 388 4.060 3.750 6.000 9.000 1.125 10.4 9.9 9.3 -16cc 416 B 0.060 S100S8-4060-5
139630 388 4.060 3.750 5.700 9.000 1.425 10.5 9.9 9.3 -16cc 473 0.060 S100S8-4060-5
139634 388 4.060 3.750 5.565 9.000 1.560 9.6 9.0 8.6 -24cc 505 0.060 S100S8-4060-5
329688 350 4.000 3.480 6.000 9.000 1.260 8.9 8.4 8.0 -24cc 426 A,B,M STD J100F8-4000-5
231315 350 4.000 3.480 5.700 9.000 1.560 8.9 8.4 8.0 -24cc 481 A STD J100F8-4000-5
329678 351 4.005 3.480 5.700 9.000 1.560 8.9 8.4 8.0 -24cc 490 A 0.005 J100F8-4000-5
329689 351 4.005 3.480 6.000 9.000 1.260 8.9 8.4 8.0 -24cc 428 A,B 0.005 J100F8-4000-5
329690 352 4.010 3.480 6.000 9.000 1.260 8.9 8.4 8.0 -24cc 432 A,B,M 0.010 J100F8-4010-0
329679 352 4.010 3.480 5.700 9.000 1.560 8.9 8.4 8.0 -24cc 495 A,M 0.010 J100F8-4010-0
139631 353 4.020 3.480 5.700 9.000 1.560 9.0 8.5 8.0 -24cc 491 A,M 0.020 S100S8-4020-5
329691 353 4.020 3.480 6.000 9.000 1.260 9.0 8.5 8.0 -24cc 438 A,B,M 0.020 S100S8-4020-5
139632 355 4.030 3.480 5.700 9.000 1.560 9.0 8.5 8.0 -24cc 492 A 0.030 S100S8-4030-5
203194 355 4.030 3.480 6.000 9.000 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 9.000 1.260 9.0 8.5 8.0 -24cc 441 A,B 0.040 S100S8-4040-5
139633 357 4.040 3.480 5.700 9.000 1.560 9.0 8.5 8.0 -24cc 503 A 0.040 S100S8-4040-5
139634 360 4.060 3.480 5.700 9.000 1.560 9.0 8.5 8.0 -24cc 505 A 0.060 S100S8-4060-5
203196 360 4.060 3.480 6.000 9.000 1.260 9.0 8.5 8.0 -24cc 453 A,B 0.060 S100S8-4060-5


400 Series
Std Bore: 4.125
Ring package designed for: 1/16, 1/16, 3/16 Rings

Click here to see matching JE Pro Seal Head Gaskets!
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
259616 427 4.125 4.000 5.850 9.000 1.150 10.9 10.3 9.7 -21cc 424 B,M STD S100S8-4125-5
345653 404 4.135 4.000 5.850 9.000 1.150 10.9 10.3 9.7 -21cc NEW B,M 0.010 J100F8-4135-5
259619 432 4.145 4.000 5.850 9.000 1.150 11.0 10.4 9.8 -21cc 434 B 0.020
259620 434 4.155 4.000 5.850 9.000 1.150 11.0 10.4 9.8 -21cc 436 B 0.030 S100S8-4155-5
259661 421 4.155 3.875 5.850 9.001 1.213 11.3 10.6 10.0 -16cc 442 B,M 0.030 S100S8-4155-5
231319 400 4.125 3.750 6.000 9.000 1.125 10.8 10.2 9.6 -16cc 410 B STD S100S8-4125-5
231318 400 4.125 3.750 5.700 9.000 1.425 10.3 9.7 9.2 -21cc 473 STD S100S8-4125-5
329696 402 4.130 3.750 6.000 9.000 1.125 10.8 10.2 9.6 -16cc 414 B 0.005 S100S8-4125-5
329694 402 4.130 3.750 5.700 9.000 1.425 10.3 9.7 9.2 -21cc 477 M 0.005 S100S8-4125-5
329695 403 4.135 3.750 5.700 9.000 1.425 10.3 9.7 9.2 -21cc 480 M 0.010 J100F8-4135-5
329697 403 4.135 3.750 6.000 9.000 1.125 10.8 10.2 9.6 -16cc 418 B 0.010 J100F8-4135-5
147548 405 4.145 3.750 6.000 9.000 1.125 10.9 10.3 9.7 -16cc 421 B,M 0.020 S100S8-4145-5
139624 405 4.145 3.750 5.700 9.000 1.425 10.4 9.8 9.2 -21cc 479 M 0.020 S100S8-4145-5
139625 407 4.155 3.750 5.700 9.000 1.425 10.4 9.8 9.2 -21cc 485 0.030 S100S8-4155-5
147549 407 4.155 3.750 6.000 9.000 1.125 11.0 10.3 9.7 -16cc 422 B 0.030 S100S8-4155-5
147550 409 4.165 3.750 6.000 9.000 1.125 11.0 10.3 9.8 -16cc 426 B 0.040 S100S8-4165-5
139626 409 4.165 3.750 5.700 9.000 1.425 10.4 9.8 9.2 -21cc 489 0.040 S100S8-4165-5
206042 375 4.145 3.480 6.000 9.000 1.260 9.2 8.8 8.3 -26cc 458 A 0.020 S100S8-4145-5
206043 377 4.155 3.480 6.000 9.000 1.260 9.2 8.8 8.3 -26cc 464 A,M 0.030 S100S8-4155-5


400 Series - Stock Deck Height (9.025") Block
Std Bore: 4.125
Ring package designed for: 1/16, 1/16, 3/16 Rings
Part # 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
259616 400 4.125 3.750 6.000 9.025 1.150 10.3 9.7 9.2 -21cc 424 B,M STD S100S8-4125-5
345653 404 4.135 3.750 6.000 9.025 1.150 10.3 9.7 9.2 -21cc NEW B,M 0.010 J100F8-4135-5
259619 405 4.145 3.750 6.000 9.025 1.150 10.4 9.8 9.3 -21cc 434 B,L 0.020
259620 407 4.155 3.750 6.000 9.025 1.150 10.4 9.8 9.3 -21cc 436 B 0.030 S100S8-4155-5
338165 408 4.165 3.750 6.000 9.025 1.150 10.5 9.9 9.3 -21cc NEW B,M 0.040 S100S8-4165-5

- 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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