cnc motorsports short block

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04-19-2019 | 04:44 PM

#11

getrdunn

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From: NW Michigan

They might be using different combos to off some over stock parts. 4.250 crank 6.385 good proven combo with a 9.8 deck. Can always check around a bit before pulling the trigger.

04-19-2019 | 04:48 PM

#12

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From: On A Dirt Floor

Is the piston compromised (example: ring land needing support rail or etc?) going to a 6.535 rod in a standard deck ? I have no idea and I'm in no mood to do any math. Thanks.

04-20-2019 | 08:29 AM

#13

TylerBurich

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From: Charleston, il

Quote:

Originally Posted by SB

Is the piston compromised (example: ring land needing support rail or etc?) going to a 6.535 rod in a standard deck ? I have no idea and I'm in no mood to do any math. Thanks.

The 4.600" je piston comes with an oil ring support rail, the piston is also a little lighter than the 6.385" rod setup.