SMALL BLOCK CHEVY
BIG BLOCK CHEVY
FORD
MOPAR
BUICK
NHRA
350 / 400 18º FLAT TOP

These pistons feature JE’s race-proven low friction skirt design and are compatible with angle milled heads. Valve reliefs will accommodate oversized valves and long duration, tight lobe separation cams. Precision CNC machined ring grooves accept 1/16, 1/16, 3/16 rings. These pistons utilize dedicated left and right hand forgings.

350 Series Includes:
Pin #927-2750-15-51S (130g)
.073 alloy spiro lock #927-073-AS
Double Pin Oilers		 400 Series Includes:
Pin #927-2950-15-51S (140g)
.073 alloy spiro lock #927-073-AS
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 # Cubic
Inches		 Bore Stroke Rod
Length		 Block
Height		 Compression
Distance
Head Cubic Centimeters
52cc 55cc 58cc
Compression Ratio
Dome
Volume		 Gram
Weight		 Footnote Oversize
190422 357 4.030 3.500 6.000 9.000 1.250 11.9 11.4 10.9 -6.0 445 A 0.030
190423 359 4.040 3.500 6.000 9.000 1.250 11.9 11.4 10.9 -6.0 449 A 0.040

400 SERIES
Std Bore: 4.125
Ring package designed for: 1/16, 1/16, 3/16 Rings
Part # Cubic
Inches		 Bore Stroke Rod
Length		 Block
Height		 Compression
Distance
Head Cubic Centimeters
52cc 55cc 58cc
Compression Ratio
Dome
Volume		 Gram
Weight		 Footnote Oversize
181951 428 4.125 4.000 6.000 9.000 1.000 14.0 13.4 12.9 -6.0 423 B STD
181952 429 4.130 4.000 6.000 9.000 1.000 14.0 13.4 12.9 -6.0 425 B 0.005
181953 430 4.135 4.000 6.000 9.000 1.000 14.0 13.4 12.9 -6.0 428 B 0.010
181954 432 4.145 4.000 6.000 9.000 1.000 14.1 13.5 13.0 -6.0 434 B 0.020
181955 434 4.155 4.000 6.000 9.000 1.000 14.1 13.5 13.0 -6.0 438 B 0.030
181956 436 4.165 4.000 6.000 9.000 1.000 14.2 13.7 13.1 -6.0 441 B 0.040
181957 414 4.125 3.875 6.000 9.000 1.062 13.6 13.1 12.6 -6.0 435 B STD
181958 415 4.130 3.875 6.000 9.000 1.062 13.6 13.1 12.6 -6.0 437 B 0.005
181959 418 4.145 3.875 6.000 9.000 1.062 13.7 13.2 12.7 -6.0 443 B 0.020
181960 420 4.155 3.875 6.000 9.000 1.062 13.7 13.2 12.7 -6.0 450 B 0.030
181961 422 4.165 3.875 6.000 9.000 1.062 13.8 13.3 12.8 -6.0 454 B 0.040
243033 401 4.125 3.750 6.000 9.000 1.125 13.2 12.7 12.2 -6.0 433 B STD
243034 402 4.130 3.750 6.000 9.000 1.125 13.2 12.7 12.2 -6.0 433 B 0.005
243035 403 4.135 3.750 6.000 9.000 1.125 13.2 12.7 12.2 -6.0 436 B 0.010
243036 405 4.145 3.750 6.000 9.000 1.125 13.3 12.8 12.3 -6.0 441 B 0.020
243037 407 4.155 3.750 6.000 9.000 1.125 13.3 12.8 12.3 -6.0 446 B 0.030
243038 409 4.165 3.750 6.000 9.000 1.125 13.4 12.9 12.3 -6.0 451 B 0.040


- 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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