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who makes a 13 to1 4.00 stoke piston for w5s 55cc

Posted By: RAY1969CARS

who makes a 13 to1 4.00 stoke piston for w5s 55cc - 02/06/13 02:14 AM

im looking for a shelf piston ??????


this is a ross piston
340 4.070 4.000 6.123 4.2 13.1 497 1.459 99788^


would this fit the chamber ???? what have you guys done ?????

Attached picture 7576963-ross-chrysablock.jpg
Posted By: sleepyhead416

Re: who makes a 13 to1 4.00 stoke piston for w5s 55cc - 02/06/13 02:18 AM

My flatop DIAMOND pistions came in @ 13.8 quench was 040
Posted By: RAY1969CARS

Re: who makes a 13 to1 4.00 stoke piston for w5s 55cc - 02/06/13 02:22 AM

Quote:

My flatop DIAMOND pistions came in @ 13.8 quench was 040





with a w5 head ????
Posted By: KOS

Re: who makes a 13 to1 4.00 stoke piston for w5s 55cc - 02/06/13 03:19 AM

55cc head with a flattop youll be 13.1 or better at that stroke and bore.
Posted By: BPE

Re: who makes a 13 to1 4.00 stoke piston for w5s 55cc - 02/06/13 03:43 AM

You don't need a dome to get 13 to 1 with 4" crank and a 55 cc chamber and zero deck. A flat top will get you where you want to be.

Rod
Posted By: sleepyhead416

Re: who makes a 13 to1 4.00 stoke piston for w5s 55cc - 02/06/13 04:06 AM

YEP W-5
Posted By: RAY1969CARS

Re: who makes a 13 to1 4.00 stoke piston for w5s 55cc - 02/06/13 06:06 AM

Quote:

im looking for a shelf piston ??????


this is a ross piston
340 4.070 4.000 6.123 4.2 13.1 497 1.459 99788^


would this fit the chamber ???? what have you guys done ?????






sorry i have 65cc chambers
Posted By: skrews

Re: who makes a 13 to1 4.00 stoke piston for w5s 55cc - 02/06/13 10:15 AM

Wiseco 13.4 - 13.8 nominal. 8cc dome volume. .043/.043/3mm rings, vertical gas ports. .984 or .927 pins.
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