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Saturday Night Racer >> RACE TECH >> Bako piston tech question
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Message started by ka_jd7and1 on 09/02/11 at 12:42pm

Title: Bako piston tech question
Post by ka_jd7and1 on 09/02/11 at 12:42pm

Let's say that I have purchased a used hobby shortblock that is American stock legal other than the pistons being 2 valve relief instead of 4..... if I have 2 more valve reliefs machined into the pistons, would that be legal? The rules just say 4VR pistons, don't say whether the pistons must be manufactured that way. Hate to scrap plans for a good motor.

Thanks.

Title: Re: Bako piston tech question
Post by 18racr on 09/02/11 at 12:57pm

when I ran factory stock in Bako thats the way almost everyone was doing it,, or maybe it was just me? lol,,,

Title: Re: Bako piston tech question
Post by ka_jd7and1 on 09/02/11 at 1:07pm

I've heard it was legal, but you know how "Tech told me...." stories go when you're hearing it seventh-hand....

:edit: Should this be in the Bako forum and not the tech section?

Title: Re: Bako piston tech question
Post by Chad11 on 09/02/11 at 1:14pm

3. PISTONS: Stock OEM piston allowed. Any flat top piston allowed. No lighting of any kind. No domed pistons allowed. Pistons are no touch.

4 valve relief no longer required.

Title: Re: Bako piston tech question
Post by 18racr on 09/02/11 at 1:31pm

well,, there you go,,,lol

Title: Re: Bako piston tech question
Post by ka_jd7and1 on 09/02/11 at 1:46pm

Chad, those are Hobby rules?

The Americans say: Stock OEM pistons OK. Stock dished or forged 4 valve relieved flat top piston OK. Must be 4 valve relieved.

Title: Re: Bako piston tech question
Post by ka_jd7and1 on 09/28/11 at 8:44pm

Never mind, I bought a set of pistons off Ebay so plans changed.