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SMALL BLOCK CHEVY
BIG BLOCK CHEVY
FORD
MOPAR
BUICK
NHRA
F.S.R. SUPERFLY GP (GAS PORTED)

The ultimate light-weight piston for Late Model Stock two-barrel and similar applications up to 400 horsepower. FSR forging provides reduced skirt contact that lowers friction for optimum HP gains. Pistons feature a .190" deep intake valve pocket for maximum compression. The ring grooves are machined for 1.2, 1.2, 3mm back cut rings with lateral gas ports provided for superior ring seal.

Includes:
Pin #927-2350-15-51C (111g)
Wire lock #927-073-MW
Lateral gas ports
Double Pin Oilers
Accumulator Groove
Contact Reduction Grooves
Rated up to 400 horsepower

350 Series
Std Bore: 4.000
Ring package designed for: 1.2, 1.2, 3MM 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
170677 357 4.030 3.500 6.250 9.000 1.000 11.6 10.8 9.4 -1.8 313 A,M 0.030 J93008-4030-5
170680 359 4.040 3.500 6.250 9.000 1.000 11.6 10.8 9.4 -1.8 312 A,M 0.040 J93008-4040-5
170687 357 4.030 3.500 6.125 9.000 1.125 11.6 10.8 9.4 -1.8 323 A 0.030 J93008-4030-5
170684 357 4.030 3.500 6.000 9.000 1.250 11.6 10.8 9.4 -1.8 334 A 0.030 J93008-4030-5
185054 358 4.035 3.500 6.000 9.000 1.250 11.6 10.8 9.4 -1.8 336 A 0.035 J93008-4030-5
170685 359 4.040 3.500 6.000 9.000 1.250 11.6 10.8 9.4 -1.8 328 A,M 0.040 J93008-4040-5
232507 352 4.000 3.500 6.000 9.020 1.270 11.5 10.7 9.3 -1.8 329 A,L STD J93008-4000-5
170678 357 4.030 3.500 5.700 9.000 1.550 11.6 10.8 9.4 -1.8 370 A 0.030 J93008-4030-5
173676 358 4.035 3.500 5.700 9.000 1.550 11.6 10.8 9.4 -1.8 378 A,M 0.035 J93008-4030-5
170679 359 4.040 3.500 5.700 9.000 1.550 11.6 10.8 9.4 -1.8 376 A 0.040 J93008-4040-5
232506 352 4.000 3.500 5.700 9.020 1.570 11.5 10.7 9.3 -1.8 368 A,L STD J93008-4000-5

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