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View Full Version : ROCKY High Compression piston kits??? - Any good??? PICS!! PICS!! PICS!!


honda250sx
07-02-2007, 02:04 PM
Who can tell me anything about a company called Rocky that used to make High Compression piston kits for 3 atc's back in the day? I just recently purchase a std, .2 mm and .5mm piston kits for my SX. Anyone else running one of these. High comp. pistons have been long gone for the SX for a long time. These just recently came up for sale on everyones favorite auction site. But for the deal i got i couldnt pass em up!
honda250sx
07-03-2007, 10:20 AM
No one has heard of these things? The guy that i bought them from used to race 250sx's.....
Tri-ZNate
07-03-2007, 11:35 AM
cant be too bad of a piston then if he used them to race. But I have never heard of these pistons

What compression are they?
sandpuppi101
07-03-2007, 11:51 AM
I remember back in the mid 80's ,a buddy of mine had a Rocky piston in his '85 200x,I don't recall him having any issue's with that piston,but that was along time ago.Actually it's when White Bros. had there different phase kit's for the thumper's.
honda250sx
07-04-2007, 03:04 PM
I remember back in the mid 80's ,a buddy of mine had a Rocky piston in his '85 200x,I don't recall him having any issue's with that piston,but that was along time ago.Actually it's when White Bros. had there different phase kit's for the thumper's.

Thanks for the info man, i appreciate it. Here is the auction link to the pistons in question. # 270140803990 on evilbay
hrc85250r
07-05-2007, 10:46 PM
rocky was a generic company that made less expensive replacement parts back in the day, much like parts unlimited sells their piston kits labeled "parts unltd pistons" but rocky marketed all kinds of stuff like oil filters and whatnot, wear-items mostly...
honda250sx
07-11-2007, 11:16 PM
:w00t: http://i71.photobucket.com/albums/i151/brauerpower/DSCN2439.jpg

:w00t: http://i71.photobucket.com/albums/i151/brauerpower/DSCN2438.jpg

:w00t: http://i71.photobucket.com/albums/i151/brauerpower/DSCN2437.jpg
SYKO
07-11-2007, 11:21 PM
thats deffenitly a difference!
honda250sx
07-11-2007, 11:49 PM
I plan on building a similar motor to DIRTCRASHER. Rocky High Comp. Web Agressive cam grind, dual rate valve springs with chrome moly retainers, OEM valves and seals, 86 carb. Maybe 350x carb. Except this will have a HRR port job and a few other things. People diss the SX and say why bother, anything worth doing is worth over doing.
SYKO
07-12-2007, 12:07 AM
anything worth doing is worth over doing.

man....that brought a tear to my eye:w00t: