Page 38 of Automotive Pistons Catalog by JE Pistons

27 These pistons are designed to be compatible with forced induction and nitrous applications. The valve reliefs are machined to accommodate larger valves and long duration, tight lobe separation cams. Precision CNC machined ring grooves accept 1/16, 1/16, 3/16 rings. Includes: Pin #912-2750-14-51S (123g), note D Pin #927-2750-15-51S (130g), note C Double spiro locks (#927-042-CS) 302 INVERTED DOME Contact Reduction Grooves Double pin oilers Rod Length Block Height Cubic Inches Bore Size Compression Distance Stroke Gram Weight Footnote Oversize Part Number Ring Prefix + Bore Size Below 56cc Head Cubic Centimeters Compression Ratio Dome Volume 60cc 64cc Rod Length Block Height Cubic Inches Bore Size Compression Distance Stroke Gram Weight Footnote Oversize Part Number Ring Prefix + Bore Size Below 56cc Head Cubic Centimeters Compression Ratio Dome Volume 60cc 64cc Most of these pistons are designed to be compatible with forced induction and nitrous applications and will accommodate larger valves and long duration, tight lobe separation cams. New parts have been designed to suit the large bore after market race blocks and the T.F.S. Twisted Wedge cylinder heads. All block deck heights have been adjusted to reflect zero deck clearance and precision CNC ring grooves accept 1/16, 1/16, 3/16 rings. Includes: Pin #912-2750-14-51S (123g) note D Pin #927-2750-15-51S (130g), note C 351W INVERTED DOME STD BORE: 4.000 302 SERIES 1/16, 1/16, 3/16 RINGS J100F8- 306 4.030 3.000 5.090 8.190 1.600 9.3 8.8 8.4 -11.0 513 D .030 131656 4030-5 STD BORE: 4.000 302 STROKER 1/16, 1/16, 3/16 RINGS J100F8- 345 4.020 3.400 5.400 8.200 1.100 9.1 8.8 8.5 -22.0 412 B,C .020 170847 4020-5 347 4.030 3.400 5.400 8.200 1.100 9.1 8.8 8.5 -22.0 415 B,C .030 170848 4030-5 348 4.040 3.400 5.400 8.200 1.100 9.6 8.8 8.5 -22.0 424 B,C .040 232462 4040-5 330 4.020 3.250 5.400 8.200 1.175 8.4 8.1 7.8 -26.5 428 B,C,L .020 170849 4020-5 331 4.030 3.250 5.400 8.200 1.175 8.4 8.1 7.8 -26.5 431 B,C .030 170850 4030-5 348 4.040 3.250 5.400 8.200 1.175 8.8 8.5 8.2 -26.0 NEW! B,C .040 232463 4040-5 STD BORE: 4.000 TWISTED SERIES 1/16, 1/16, 3/16 RINGS J100F8- 347 4.030 3.400 5.400 8.200 1.100 10.4 9.9 9.5 -11.0 NEW! B,C .030 232470 4030-5 347 4.030 3.250 5.400 8.200 1.175 9.9 9.5 9.1 -11.0 NEW! B,C .030 232471 4030-5 Double pin oilers Double spiro locks (#927-042-CS) Foot Notes: B=Oil Rail Support is Included, C=.927 Pin Diameter, D=.912 Pin Diameter, L=Limited quantities available STD BORE: 4.000 351 STROKER 1/16, 1/16, 3/16 RINGS J100F8- 418 4.030 4.100 6.200 9.480 1.230 11.5 11.0 10.5 -17.0 426 B,C,** .030 194951 4030-5 408 4.030 4.000 6.200 9.480 1.280 9.8 9.4 9.1 -30.0 441 B,C .030 170393 4030-5 410 4.040 4.000 6.200 9.480 1.280 9.8 9.4 9.1 -30.0 452 B,C .040 232464 4040-5 414 4.060 4.000 6.200 9.480 1.280 9.9 9.6 9.2 -30.0 462 B,C .060 232465 4060-5 393 4.030 3.850 6.200 9.480 1.355 9.8 9.4 9.1 -26.7 455 C .030 170394 4030-5 393 4.030 3.850 5.956 9.480 1.600 11.6 11.1 10.6 -11.0 513 D,** .030 131656 4030-5 STD BORE: 4.000 351 TWISTED SERIES 1/16, 1/16, 3/16 RINGS J100F8- 408 4.030 4.000 6.200 9.480 1.280 12.0 11.4 10.9 -11.0 476 B,C,** .030 194947 4030-5 393 4.030 3.850 6.200 9.475 1.355 11.6 11.1 10.6 -11.0 495 C,** .030 194948 4030-5 SVO/DART BIG BORE RACE BLOCKS 1/16, 1/16, 3/16 RINGS J100F8- 438 4.125 4.100 6.200 9.480 1.230 10.4 10.0 9.7 -30.0 464 B,C STD 207417 4125-5 427 4.125 4.000 6.250 9.480 1.230 10.2 9.8 9.5 -30.0 464 B,C STD 207417 4125-5 427 4.125 4.000 6.125 9.475 1.350 10.0 9.6 9.3 -32.0 486 C STD 207418 4125-5 414 4.125 3.875 6.200 9.488 1.350 9.7 9.4 9.1 -32.0 486 C STD 207418 4125-5 411 4.125 3.850 6.200 9.475 1.350 9.7 9.3 9.0 -32.0 486 C STD 207418 4125-5 406 4.125 3.800 6.250 9.500 1.350 9.5 9.2 8.9 -32.0 486 C STD 207418 4125-5 401 4.125 3.750 6.250 9.475 1.350 9.4 9.1 8.8 -32.0 486 C STD 207418 4125-5 Foot Notes: B=Oil Rail Support is Included, C=.927 Pin Diameter, D=.912 Pin Diameter ** Not designed to be used in forced induction applications

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