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350 / 400 SMALL BLOCK DOME

These high-compression pistons are compatible with most aftermarket 23ยบ heads and are ideal for drag racing and circle track applications. Valve reliefs will accommodate oversized valves and long duration, tight lobe separation cams. Precision CNC ring grooves are designed for 1/16, 1/16, 3/16 rings. Will not fit Pro Topline or Brodix 11X cylinder heads.

Includes:
Pin #927-2750-15-51S (130g)
Double Spiro locks #927-042-CS
Contact reduction grooves
Double pin oilers
350 SERIES
Std Bore: 4.000
Ring package designed for: 1/16, 1/16, 3/16 Rings

Tech and Installation Tips
Valve Relief Diagram
Part # CID Bore Stroke Rod
Lgth.
Block
Ht.
Comp.
Ht.
Head Cubic Centimeters
58cc 64cc 76cc
Compression Ratio
Dome
Vol.
Gram
Wt.
Footnote Oversize Recom.
Ring Set
182016 383 4.030 3.750 5.700 9.000 1.425 15.0 13.7 11.6 11.0 470 M 0.030 J10008-4030-5
182005 383 4.030 3.750 6.000 9.000 1.125 15.0 13.6 11.6 11.0 420 B 0.030 J10008-4030-5
182006 385 4.040 3.750 6.000 9.000 1.125 15.1 13.7 11.6 11.0 424 B 0.040 J10008-4040-5
182017 385 4.040 3.750 5.700 9.000 1.425 15.1 13.7 11.6 11.0 473 M 0.040 J10008-4040-5
182018 388 4.060 3.750 5.700 9.000 1.425 15.2 13.8 11.7 11.0 482 M 0.060 J10008-4060-5
182007 388 4.060 3.750 6.000 9.000 1.125 15.2 13.8 11.7 11.0 432 B 0.060 J10008-4060-5
182008 370 4.030 3.625 6.000 9.000 1.187 15.2 13.7 11.6 13.5 439 0.030 J10008-4030-5
182009 363 4.030 3.562 6.000 9.000 1.219 14.8 13.4 11.3 13.0 444 0.030 J10008-4030-5
182010 365 4.040 3.562 6.000 9.000 1.219 14.8 13.4 11.4 13.0 454 0.040 J10008-4040-5
217240 352 4.000 3.500 6.000 9.000 1.250 14.5 13.1 11.1 13.5 438 A STD J10008-4000-5
217241 353 4.010 3.500 6.000 9.000 1.250 14.4 13.0 11.0 13.0 443 A,M 0.010 J10008-4010-0
182011 355 4.020 3.500 6.000 9.000 1.250 14.6 13.2 11.2 13.5 445 A,M 0.020 J10008-4020-5
182012 357 4.030 3.500 6.000 9.000 1.250 14.7 13.3 11.3 13.5 450 A 0.030 J10008-4030-5
182020 357 4.030 3.500 5.700 9.000 1.550 14.7 13.3 11.2 13.5 495 A,M 0.030 J10008-4030-5
182021 358 4.035 3.500 5.700 9.000 1.550 14.7 13.3 11.2 13.0 497 A,M 0.035 J10008-4030-5
182013 358 4.035 3.500 6.000 9.000 1.250 14.7 13.4 11.3 13.5 452 A 0.035 J10008-4030-5
182014 359 4.040 3.500 6.000 9.000 1.250 14.8 13.4 11.3 13.5 455 A 0.040 J10008-4040-5
182022 359 4.040 3.500 5.700 9.000 1.550 14.7 13.4 11.3 13.5 498 A,M 0.040 J10008-4040-5
182023 362 4.060 3.500 5.700 9.000 1.550 14.8 13.5 11.4 13.5 510 A,M 0.060 J10008-4060-5
182015 362 4.060 3.500 6.000 9.000 1.250 14.9 13.5 11.4 13.5 463 A 0.060 J10008-4060-5
207510 364 4.070 3.500 6.000 9.000 1.250 14.9 13.5 11.4 13.5 471 A,M 0.070 J100F8-4070-5


400 SERIES
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 76cc
Compression Ratio
Dome
Vol.
Gram
Wt.
Footnote Oversize Recom.
Ring Set
182024 428 4.125 4.000 6.000 9.000 1.000 15.3 14.0 12.0 6.1 433 S,B std J10008-4125-5
182029 428 4.125 4.000 6.000 9.000 1.000 16.4 15.0 12.7 10.8 423 B std J10008-4125-5
182025 429 4.130 4.000 6.000 9.000 1.000 15.3 14.0 12.1 6.1 435 S,B 0.005 J10008-4130-5
182026 432 4.145 4.000 6.000 9.000 1.000 15.4 14.1 12.1 6.1 445 S,B 0.020 J10008-4145-5
182030 432 4.145 4.000 6.000 9.000 1.000 16.6 15.1 12.8 10.8 432 B 0.020 J10008-4145-5
182027 434 4.155 4.000 6.000 9.000 1.000 15.5 14.2 12.2 6.2 445 S,B 0.030 J10008-4155-5
182031 434 4.155 4.000 6.000 9.000 1.000 16.6 15.2 12.9 10.8 435 B 0.030 J10008-4155-5
182028 436 4.165 4.000 6.000 9.000 1.000 15.6 14.3 12.3 6.2 453 S,B 0.040 J10008-4165-5
182032 436 4.165 4.000 6.000 9.000 1.000 16.8 15.2 13.0 10.9 441 B 0.040 J10008-4165-5
207513 440 4.185 4.000 6.000 9.000 1.000 16.9 15.4 13.1 10.9 448 B 0.060 J100F8-4185-5
182033 414 4.125 3.875 6.000 9.000 1.062 14.7 13.5 11.6 5.6 444 S,B std J10008-4125-5
182038 414 4.125 3.875 6.000 9.000 1.062 16.0 14.5 12.4 10.8 434 B std J10008-4125-5
182034 417 4.130 3.875 6.000 9.000 1.062 14.7 13.5 11.6 5.6 447 S,B 0.005 J10008-4130-5
182039 417 4.130 3.875 6.000 9.000 1.062 16.5 15.0 12.8 10.8 436 B 0.005 J10008-4130-5
182035 418 4.145 3.875 6.000 9.000 1.062 14.8 13.6 11.7 5.6 455 B 0.020 J10008-4145-5
182040 418 4.145 3.875 6.000 9.000 1.062 16.6 15.1 12.8 10.8 448 B 0.020 J10008-4145-5
182036 420 4.155 3.875 6.000 9.000 1.062 14.9 13.7 11.8 5.6 457 S,B 0.030 J10008-4155-5
182041 420 4.155 3.875 6.000 9.000 1.062 16.2 14.7 12.5 10.8 450 B 0.030 J10008-4155-5
182037 422 4.165 3.875 6.000 9.000 1.062 15.0 13.8 11.8 5.6 464 S,B 0.040 J10008-4165-5
182042 422 4.165 3.875 6.000 9.000 1.062 16.3 14.8 12.6 10.8 453 B 0.040 J10008-4165-5
207514 426 4.185 3.875 6.000 9.000 1.062 16.4 14.9 12.7 10.8 466 B 0.060 J100F8-4185-5
182047 406 4.125 3.800 6.000 9.000 1.100 15.7 14.3 12.1 10.8 437 B STD J10008-4125-5
182050 410 4.145 3.800 6.000 9.000 1.100 15.8 14.4 12.2 10.8 440 B 0.020 J10008-4145-5
182045 412 4.155 3.800 6.000 9.000 1.100 14.6 13.4 11.6 5.6 456 B,M 0.030 J10008-4155-5
182051 412 4.155 3.800 6.000 9.000 1.100 15.9 14.5 12.3 10.8 449 B 0.030 J10008-4155-5
182052 414 4.165 3.800 6.000 9.000 1.100 15.9 14.5 12.3 10.8 448 B 0.040 J10008-4165-5
182053 401 4.125 3.750 6.000 9.000 1.125 14.3 13.1 11.3 5.6 450 S,B STD J10008-4125-5
182058 401 4.125 3.750 6.000 9.000 1.125 15.5 14.1 12.0 10.8 437 B STD J10008-4125-5
242890 401 4.125 3.750 6.000 9.000 1.125 16.0 14.5 12.3 12.8 448 B STD J10008-4125-5
182059 402 4.130 3.750 6.000 9.000 1.125 15.5 14.1 12.0 10.8 440 B 0.005 J10008-4130-5
182055 405 4.145 3.750 6.000 9.000 1.125 14.4 13.2 11.4 5.6 461 S,B,M 0.020 J10008-4145-5
182060 405 4.145 3.750 6.000 9.000 1.125 15.8 14.4 12.2 10.8 447 B 0.020 J10008-4145-5
182056 407 4.155 3.750 6.000 9.000 1.125 14.4 13.3 11.4 5.6 460 S,B 0.030 J10008-4155-5
182070 407 4.155 3.750 5.700 9.000 1.425 14.8 13.6 11.6 7.3 491 M 0.030 J10008-4155-5
182061 407 4.155 3.750 6.000 9.000 1.125 15.9 14.5 12.3 10.8 451 B 0.030 J10008-4155-5
242891 407 4.155 3.750 6.000 9.000 1.125 16.2 14.7 12.5 12.8 466 B 0.030 J10008-4155-5
182057 409 4.165 3.750 6.000 9.000 1.125 14.5 13.3 11.5 5.6 464 S,B 0.040 J10008-4165-5
182071 409 4.165 3.750 5.700 9.000 1.425 14.9 13.6 11.7 7.3 490 M 0.040 J10008-4165-5
182062 409 4.165 3.750 6.000 9.000 1.125 15.7 14.3 12.2 10.8 460 B 0.040 J10008-4165-5
242892 409 4.165 3.750 6.000 9.000 1.125 16.3 14.8 12.5 12.8 468 B 0.040 J10008-4165-5
182063 388 4.125 3.625 6.000 9.000 1.187 15.6 14.1 11.9 12.9 451 B STD J10008-4125-5
182064 391 4.145 3.625 6.000 9.000 1.187 15.7 14.2 12.0 12.9 459 B 0.020 J10008-4145-5
182065 393 4.155 3.625 6.000 9.000 1.187 15.7 14.3 12.1 12.9 469 B 0.030 J10008-4155-5
182066 386 4.155 3.562 6.000 9.000 1.219 15.5 14.1 11.9 12.9 475 0.030 J10008-4155-5
242890 374 4.125 3.500 6.125 9.000 1.125 15.0 13.6 11.6 12.8 448! B STD J10008-4125-5
182067 374 4.125 3.500 6.000 9.000 1.250 15.1 13.7 11.6 13.0 453 A STD J10008-4125-5
182068 378 4.145 3.500 6.000 9.000 1.250 15.2 13.8 11.7 13.0 463 A 0.020 J10008-4145-5
242891 380 4.155 3.500 6.125 9.000 1.125 15.2 13.8 11.7 12.8 466 B 0.030 J10008-4155-5
182069 380 4.155 3.500 6.000 9.000 1.250 153. 13.8 11.7 13.0 468 A 0.030 J10008-4155-5
242892 382 4.165 3.500 6.125 9.000 1.125 15.3 13.9 11.7 12.8 468 B 0.040 J10008-4165-5

- 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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