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LS2 / LS3 / LS6 / L92: Inverted Dome Professional Series

    PISTON DESIGN
  • Advanced, lightweight FSR forging that eliminates stress concentrations for superior strength
  • Up to 20% lighter than traditional equivalent
  • High-silicon 4032 aluminum alloy for reduced piston-to-wall clearance and quiet operation and 2618 versions available.
  • Accumulator grooves for improved ring seal
  • Designed for normally aspirated or moderate forced induction/nitrous applications
  • Compatible with GM L92 Cylinder Heads
  • Now includes high performance skirt coating!
    RINGS INCLUDED
  • Lightweight, low friction metric ring package included
  • 1.2mm top ring, 1.5mm 2nd ring, 3.0mm standard tension oil ring
  • Minimal filing required

    PINS AND LOCKS
  • High quality 2.250" pin further reduces reciprocating weight
  • Carbon steel wire locks included
SRP Pro 4032 Series GM GEN III / IV LS Inverted Dome
Std Bore: 4.000 (LS2/LS6), 4.065 (LS3)
Ring package: 1.2mm, 1.5mm, 3.0mm Premium Rings Included

Click here to see matching JE Pro Seal Head Gaskets!
Part # CID Bore Stroke Rod
Lgth.
Block
Ht.
Comp.
Ht.
Head Cubic Centimeters
64cc 66cc 72cc
Compression Ratio
Dome
Vol.
Gram
Wt.
Footnote Oversize Recom.
Ring Set
329358 402 4.000 4.000 6.125 9.240 1.115 11.0 10.7 10.1 -10.0 398 B STD JG3108-4000-7
271100 403 4.005 4.000 6.125 9.240 1.115 11.0 10.7 10.1 -10 399 B 0.005
329359 404 4.010 4.000 6.125 9.240 1.115 11.0 10.7 10.1 -10.0 405 B .010 JG3108-4010-4
271102 408 4.030 4.000 6.125 9.240 1.115 11.1 10.8 10.2 -10 406 B 0.030
271105 416 4.065 4.000 6.125 9.240 1.115 11.2 11.0 10.3 -10 418 B,M STD LS3
279525 416 4.070 4.000 6.125 9.240 1.115 11.3 11.0 10.4 -10 420 B .005 LS3
329360 417 4.075 4.000 6.125 9.240 1.115 11.3 11.0 10.4 -10.0 424 B .010 LS3 JG31F8-4075-5
329361 418 4.080 4.000 6.125 9.240 1.115 11.3 11.0 10.4 -10.0 428 B .015 LS3 JG31F8-4075-5
287994 364 4.000 3.622 6.098 9.240 1.340 9.6 9.4 8.8 -14.3 429 K,M STD
288003 364 4.000 3.622 6.125 9.240 1.315 9.6 9.4 8.8 -14.3 427 C,M STD
288004 365 4.005 3.622 6.125 9.240 1.315 9.6 9.4 8.9 -14.3 428 C,M 0.005
287995 365 4.005 3.622 6.098 9.240 1.340 9.6 9.4 8.9 -14.3 431 K,M 0.005
329352 366 4.010 3.622 6.098 9.240 1.340 9.6 9.4 8.9 -14.4 435 K,M .010 JG3108-4010-4
329355 366 4.010 3.622 6.125 9.240 1.315 9.6 9.4 8.9 -14.4 430 C .010 JG3108-4010-4
288005 370 4.030 3.622 6.125 9.240 1.315 9.6 9.4 8.8 -15.5 437 C,M 0.030
287996 370 4.030 3.622 6.098 9.240 1.340 9.6 9.4 8.8 -15.5 442 K,M 0.030
287997 376 4.065 3.622 6.098 9.240 1.340 9.6 9.4 8.9 -17.2 448 K,M STD LS3
288006 376 4.065 3.622 6.125 9.240 1.315 9.6 9.4 8.9 -17.2 445 C,M STD LS3
288007 377 4.070 3.622 6.125 9.240 1.315 9.6 9.4 8.9 -17.2 447 C,M 0.005
287999 377 4.070 3.622 6.098 9.240 1.340 9.6 9.4 8.9 -17.2 450 K 0.005
329356 378 4.075 3.622 6.125 9.240 1.315 9.6 9.4 8.9 -17.2 450 C,M .010 LS3 JG31F8-4075-5
329353 378 4.075 3.622 6.098 9.240 1.340 9.6 9.4 8.9 -17.2 452 K,M .010 LS3 JG31F8-4075-5
329354 379 4.080 3.622 6.098 9.240 1.340 9.6 9.4 8.9 -17.2 455 K,M .015 LS3 JG31F8-4075-5
329357 379 4.080 3.622 6.125 9.240 1.315 9.6 9.4 8.9 -17.2 454 C,M .015 LS3 JG31F8-4075-5


SRP Pro 2618 Series GM GEN III / IV LS Inverted Dome
Std Bore: 4.000 (LS2/LS6), 4.065 (LS3)
Ring package: 1.2mm, 1.5mm, 3.0mm Premium Rings Included

Part # CID Bore Stroke Rod
Lgth.
Block
Ht.
Comp.
Ht.
Head Cubic Centimeters
64cc 66cc 72cc
Compression Ratio
Dome
Vol.
Gram
Wt.
Footnote Oversize Recom.
Ring Set
360990 364 4.000 3.622 6.098 9.240 1.340 9.6 9.4 8.8 -14.3 429 2618 STD JG3108-4000-7
360991 365 4.005 3.622 6.098 9.240 1.340 9.6 9.4 8.8 -14.3 431 2618 .005 JG3108-4000-7
360992 366 4.010 3.622 6.098 9.240 1.340 9.6 9.4 8.8 -14.4 435 2618 .010 JG3108-4010-4
360993 370 4.030 3.622 6.098 9.240 1.340 9.6 9.4 8.8 -15.5 442 2618 .030 JG31F8-4030-2
360994 376 4.065 3.622 6.098 9.240 1.340 9.6 9.4 8.8 -17.2 448 2618 STD LS3 JG31F8-4070-0
360995 377 4.070 3.622 6.098 9.240 1.340 9.6 9.4 8.8 -17.2 450 2618 .005 JG31F8-4070-0
360996 378 4.075 3.622 6.098 9.240 1.340 9.6 9.4 8.8 -17.2 452 2618 .010 JG31F8-4075-5


SRP Pro 2618 Series GM GEN III / IV LS Inverted Dome 6.125 Rod
Std Bore: 4.000 (LS2/LS6), 4.065 (LS3) Ring package: 1.2mm, 1.5mm, 3.0mm Premium Rings Included
Part # CID Bore Stroke Rod
Lgth.
Block
Ht.
Comp.
Ht.
Head Cubic Centimeters
64cc 66cc 72cc
Compression Ratio
Dome
Vol.
Gram
Wt.
Footnote Oversize Recom.
Ring Set
361004 402 4.000 4.000 6.125 9.240 1.115 11.0:1 10.7:1 10.1:1 -10 398 2618 STD JG3108-4000-7
361005 403 4.005 4.000 6.125 9.240 1.115 11.0:1 10.7:1 10.1:1 -10 399 2618 .005 JG3108-4000-7
361006 404 4.010 4.000 6.125 9.240 1.115 11.0:1 10.7:1 10.1:1 -10 405 2618 .010 JG3108-4010-4
361007 408 4.030 4.000 6.125 9.240 1.115 11.1:1 10.8:1 10.2:1 -10 406 2618 .030 JG31F8-4030-2
361008 416 4.065 4.000 6.125 9.240 1.115 11.2:1 11.0:1 10.3:1 -10 418 2618 STD LS3 JG31F8-4070-0
361009 417 4.070 4.000 6.125 9.240 1.115 11.3:1 11.0:1 10.4:1 -10 420 2618 .005 JG31F8-4070-0
361010 417 4.075 4.000 6.125 9.240 1.115 11.3:1 11.0:1 10.4:1 -10 424 2618 .010 JG31F8-4075-5
360997 364 4.000 3.622 6.125 9.240 1.315 9.6:1 9.4:1 8.8:1 -14.3 427 2618 STD JG3108-4000-7
360998 365 4.005 3.622 6.125 9.240 1.315 9.6:1 9.4:1 8.9:1 -14.3 428 2618 .005 JG3108-4000-7
360999 366 4.010 3.622 6.125 9.240 1.315 9.6:1 9.4:1 8.9:1 -14.3 430 2618 .010 JG3108-4010-4
361000 370 4.030 3.622 6.125 9.240 1.315 9.6:1 9.4:1 8.9:1 -15.5 437 2618 .030 JG31F8-4030-2
361001 376 4.065 3.622 6.125 9.240 1.315 9.6:1 9.4:1 8.9:1 -17.2 445 2618 STD LS3 JG31F8-4070-0
361002 377 4.070 3.622 6.125 9.240 1.315 9.6:1 9.4:1 8.9:1 -17.2 447 2618 .005 JG31F8-4070-0
361003 378 4.075 3.622 6.125 9.240 1.315 9.6:1 9.4:1 8.9:1 -17.2 450 2618 .010 JG31F8-4075-5

- 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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