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350 / 400 DOME

  • CNC machined domes with radiused valve reliefs provide optimum flame travel
  • Designed for use with most popular 23º heads
  • Forged from Premium 2618 aluminum alloy
  • 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 Engine Block
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
231312 377 4.000 3.750 6.000 9.000 1.125 13.9 12.7 11.7 7cc 414 STD J100F8-4000-5
329650 378 4.005 3.750 6.000 9.000 1.125 13.9 12.7 12.7 7cc 415 B 0.005 J100F8-4000-5
329651 379 4.010 3.750 6.000 9.000 1.125 14.0 12.7 12.7 7cc 416 B,M 0.010 J100F8-4010-0
140347 381 4.020 3.750 6.000 9.000 1.125 14.0 12.8 11.8 7cc 417 B,M 0.020 S100S8-4020-5
140348 383 4.030 3.750 6.000 9.000 1.125 14.0 12.9 11.9 7cc 426 B 0.030 S100S8-4030-5
140344 383 4.030 3.750 5.700 9.000 1.425 14.0 12.9 11.9 7cc 483 0.030 S100S8-4030-5
140345 385 4.040 3.750 5.700 9.000 1.425 14.1 12.9 11.9 7cc 488 0.040 S100S8-4040-5
140349 385 4.040 3.750 6.000 9.000 1.125 14.1 12.9 11.9 7cc 430 B 0.040 S100S8-4040-5
140350 388 4.060 3.750 6.000 9.000 1.125 14.2 13.0 12.0 7cc 441 B 0.060 S100S8-4060-5
140346 388 4.060 3.750 5.700 9.000 1.425 14.2 13.0 12.0 7cc 498 0.060 S100S8-4060-5
329641 350 4.000 3.480 5.700 9.000 1.560 11.9 11.0 10.2 1cc 496 A,S STD J100F8-4000-5
231309 350 4.000 3.480 5.700 9.000 1.560 13.8 12.6 11.6 11cc 495 A STD J100F8-4000-5
231310 350 4.000 3.480 6.000 9.000 1.260 13.8 12.6 11.6 11cc 448 A,M STD J100F8-4000-5
329642 351 4.005 3.480 5.700 9.000 1.560 11.9 11.0 10.2 1cc 500 A,S 0.005 J100F8-4000-5
329638 351 4.005 3.480 5.700 9.000 1.560 13.8 12.6 11.6 11cc 505 A 0.005 J100F8-4000-5
329647 351 4.005 3.480 6.000 9.000 1.260 13.8 12.6 11.6 11cc 449 A 0.005 J100F8-4000-5
329648 352 4.010 3.480 6.000 9.000 1.260 13.8 12.6 11.6 11cc 450 A,M 0.010 J100F8-4010-0
329639 352 4.010 3.480 5.700 9.000 1.560 13.8 12.6 11.6 11cc 515 A,M 0.010 J100F8-4010-0
329643 352 4.010 3.480 5.700 9.000 1.560 11.9 11.0 10.2 1cc 505 A,S,M 0.010 J100F8-4010-0
329644 353 4.020 3.480 5.700 9.000 1.560 11.9 11.1 10.3 1cc 510 A,S,M 0.020 S100S8-4020-5
329640 353 4.020 3.480 5.700 9.000 1.560 13.9 12.7 11.7 11cc 510 A,M 0.020 S100S8-4020-5
329649 353 4.020 3.480 6.000 9.000 1.260 13.9 12.7 12.7 11cc 455 A,M 0.020 S100S8-4020-5
206041 355 4.030 3.480 6.000 9.000 1.260 11.9 11.1 10.4 1cc 464 A,S 0.030 S100S8-4030-5
140678 355 4.030 3.480 6.000 9.000 1.260 14.2 12.9 11.9 11cc 459 A 0.030 S100S8-4030-5
206040 355 4.030 3.480 5.700 9.000 1.560 11.9 11.1 10.4 1cc 516 A,S 0.030 S100S8-4030-5
140674 355 4.030 3.480 5.700 9.000 1.560 14.0 12.7 11.7 11cc 509 A 0.030 S100S8-4030-5
140675 357 4.040 3.480 5.700 9.000 1.560 14.1 12.8 11.7 11cc 511 A 0.040 S100S8-4040-5
140679 357 4.040 3.480 6.000 9.000 1.260 14.2 13.0 12.0 11cc 461 A 0.040 S100S8-4040-5
329645 357 4.040 3.480 5.700 9.000 1.560 11.9 11.1 10.4 1cc 520 A,S 0.040 S100S8-4040-5
329646 360 4.060 3.480 5.700 9.000 1.560 11.9 11.1 10.4 1cc 530 A,S,M 0.060 S100S8-4060-5
140680 360 4.060 3.480 6.000 9.000 1.260 14.3 13.0 12.0 11cc 474 A 0.060 S100S8-4060-5
140676 360 4.060 3.480 5.700 9.000 1.560 14.6 12.9 11.8 11cc 530 A 0.060 S100S8-4060-5


400 Engine Block
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
231314 400 4.125 3.750 6.000 9.000 1.125 14.0 12.8 11.8 4cc 430 STD S100S8-4125-5
329652 400 4.125 3.750 5.700 9.000 1.425 14.0 12.8 11.8 4cc 486 STD S100S8-4125-5
329656 400 4.125 3.750 6.000 9.000 1.125 14.0 12.8 11.8 4cc 426 B STD S100S8-4125-5
231313 400 4.125 3.750 5.700 9.000 1.425 14.0 12.8 11.8 4cc 484 STD S100S8-4125-5
329657 402 4.130 3.750 6.000 9.000 1.125 14.0 12.8 11.8 4cc 428 B,M 0.005 S100S8-4125-5
329653 402 4.130 3.750 5.700 9.000 1.425 14.0 12.8 11.8 4cc 488 0.005 S100S8-4125-5
329654 403 4.135 3.750 5.700 9.000 1.425 14.0 12.8 11.8 4cc 492 M 0.010 J100F8-4135-5
329658 403 4.135 3.750 6.000 9.000 1.125 14.0 12.9 11.8 4cc 432 B,M 0.010 J100F8-4135-5
329655 405 4.145 3.750 5.700 9.000 1.425 14.0 12.8 11.8 4cc 496 M 0.020 S100S8-4145-5
142023 405 4.145 3.750 6.000 9.000 1.125 14.0 12.8 11.8 4cc 437 B 0.020 S100S8-4145-5
142024 407 4.155 3.750 6.000 9.000 1.125 14.0 12.9 11.9 4cc 445 B 0.030 S100S8-4155-5
142021 407 4.155 3.750 5.700 9.000 1.425 14.0 12.9 11.9 4cc 500 0.030 S100S8-4155-5
142022 409 4.165 3.750 5.700 9.000 1.425 14.1 12.9 11.9 4cc 504 0.040 S100S8-4165-5
142025 409 4.165 3.750 6.000 9.000 1.125 14.1 12.9 11.9 4cc 449 B 0.040 S100S8-4165-5
142033 375 4.145 3.480 6.000 9.000 1.260 14.2 13.0 12.0 9cc 483 A,M 0.020 S100S8-4145-5
142034 377 4.155 3.480 6.000 9.000 1.260 14.2 13.0 12.0 9cc 485 A 0.030 S100S8-4155-5
142031 377 4.155 3.480 5.700 9.000 1.560 14.2 13.0 12.0 9cc 530 A 0.030 S100S8-4155-5
142035 379 4.165 3.480 6.000 9.000 1.260 14.2 13.0 12.0 9cc 493 A 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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