what pistons? what comp

Anonymous · Post by **Anonymous** » Sun Jan 15, 06 5:37 pm

I`d be no good as a detective, I could have sworn the pistons in my engine had valve reliefs

they are flat top pistons with the part no. 2286p on them.Any body got any idea what they are?(don`t say pistons

) ,I`m using 906 heads and the pistons come to the top of the block,any help would be appreciated cheers

Blue · Post by **Blue** » Sun Jan 15, 06 7:00 pm

That's a TRW no. but I can't find them listed here,
ttp://www.campbellenterprises.com/mopar_speed ... istons.htm

so I assume they are now obsolete,do a bit more seaching on the web and you should be able to identify them.

Anonymous · Post by **Anonymous** » Sun Jan 15, 06 11:35 pm

cheers blue,I figure they`ve been in there a while

Mick70RR · Post by **Mick70RR** » Mon Jan 16, 06 6:22 pm

They are listed here as a Sealed Power piston, but no specs.
http://www.nhra.com/tech_specs/pistons/

Anonymous · Post by **Anonymous** » Mon Jan 16, 06 7:07 pm

thanks mick

just need to work out comp. ratio

Blue · Post by **Blue** » Mon Jan 16, 06 7:52 pm

Check with feeler gauges to see how far down the hole the pistons are at TDC, if you have no valve reliefs then I'd guess they will be at least 90thou down....

Anonymous · Post by **Anonymous** » Mon Jan 16, 06 11:23 pm

they are flush with the top of the bore,I put a straight edge across & maybe 10 thou but that`s all