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ULTRA-LIGHT GP (GAS PORTED)

The #1 choice for Late Model Stock engine builders. Rated to 400 hp these pistons feature a contoured bottom band and a 2.400 length pin for maximum weight savings. Precision CNC machined .043, .043, 3mm back cut ring grooves. Footnote X parts are rated to 500hp, they will work with 21ยบ angle milled heads and have deeper valve pockets.

Includes:
Pin #927-2400-13-51C (103g)
Wire lock #927-073-MW
Lateral gas ports
Accumulator Groove
Contact Reduction Grooves
Double Pin Oilers
350 ULTRA LIGHT GP SERIES
Std Bore: 4.000
Ring package designed for: .043, .043, 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
187695 357 4.030 3.500 6.250 9.000 1.000 11.3 10.5 9.2 -4.0 318 A,X,M 0.030 J70008-4030-5
187698 357 4.030 3.500 6.000 9.000 1.250 11.3 10.5 9.2 -4.0 352 A,X 0.030 J70008-4030-5
177848 357 4.030 3.500 6.125 9.000 1.125 11.6 10.8 9.4 -1.8 342 A,M 0.030 J70008-4030-5
183325 357 4.030 3.500 6.250 9.000 1.000 11.6 10.8 9.4 -1.8 312 A,M 0.030 J70008-4030-5
173617 357 4.030 3.500 5.700 9.000 1.550 11.6 10.8 9.4 -1.8 395 A 0.030 J70008-4030-5
173615 357 4.030 3.500 6.000 9.000 1.250 11.6 10.8 9.4 -1.8 358 A 0.030 J70008-4030-5
207484 358 4.035 3.500 6.000 9.000 1.250 11.3 10.5 9.2 -4.0 354 A,X 0.035 J70008-4030-5
207481 358 4.035 3.500 6.250 9.000 1.000 11.6 10.8 9.4 -1.8 318 A,M 0.035 J70008-4030-5
177849 359 4.040 3.500 6.125 9.000 1.125 11.6 10.8 9.4 -1.8 347 A,M 0.040 J70008-4040-5
173616 359 4.040 3.500 6.000 9.000 1.250 11.6 10.8 9.4 -1.8 362 A 0.040 J70008-4040-5
173618 359 4.040 3.500 5.700 9.000 1.550 11.6 10.8 9.4 -1.8 401 A 0.040 J70008-4040-5
194338 362 4.060 3.500 5.700 9.000 1.550 11.6 10.8 9.4 -1.8 412 A 0.060 J70008-4060-5
194337 362 4.060 3.500 6.000 9.000 1.250 11.6 10.8 9.4 -1.8 374 A 0.060 J70008-4060-5

- 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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