jaws12r
Novice Class
Posts: 45
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posted June 19, 2006 10:24 PM
1272 on 1270
please bear with my long story/question:
recently i bolt on a muzzys 1270 with muzzys cams(complete with the vsprings,retainers)+studs...after 3000miles a valve sung on the 3rd 1270 pistion..after checking out with muzzy.i order a piston(supose to be 1270) + welded crank to increase to 1375 set up.. yesterday i just discover the piston they send me is different...its the same size as 1270, but its different in length from the other 3 1270 old piston..my bike shop email muzzys they told me muzzys dont sell a 1270 piston,and ive to order 4....
QUESTION : do you think the wiseco 1272 piston will fit in the muzzys 1270cylinder(its in great condition) with my muzzy crank...is it 100% possible for this 1377cc set up.
the muzzys 60mm welded crank is new...other than that i have the muzzys cams,valve springs,retainers,ss valve (new from u guys)stud n nuts..what else i need?
  
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zxlnt
Needs a job
Kawpuke Extraordinare
Posts: 2853
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posted June 19, 2006 11:08 PM
Look at my post on pyschobike. If I were to guess, since you ordered a stroker crank you probably got a cut down 1270 piston. When you go with the stroker crank they cut the domes of the 1270 pistons to lower engine compression. If I were to guess that is..
Call them back and double check..
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NOX
Needs a job
PMRA / TMRC Super Street 4022
Posts: 3745
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posted June 20, 2006 05:22 AM
sounds like that great customer service from Muzzy's again..........
Nothing against Rob himself, he has always been great with me, but unless it is a have to have item, I will not order anything from them again...........
Their tech advice has cost me more money rounds than I would like to think about...............
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Megabyte
Pro
Posts: 1047
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posted June 20, 2006 07:31 AM
We(Velasco) used the longer Wiseco pistons on my 1361. Everyone commented that they were quieter than muzzys. Since my 1361 makes 212rwhp, who was I to argue 
____________
We First make our habits and then our habits make us.
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buddy
Expert Class
Posts: 335
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posted June 20, 2006 11:08 AM
Ditto to post from NOX.
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ninja12
Needs a job
Posts: 3310
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posted June 20, 2006 11:56 AM
Best thing muzzy had was Doug Meyer!
There products are not bad if you don't need any help or have a problem.
The customer service is to hopeless to ever describe.
I would rather have Mikey from OCC answer tech question about muzzy products
than Dave or Kirk at Muzzy's. I can't figure if they dont know or just won't help.
I bet they are related to Rob or has something on him.
Doug is still around on the board, he may step in and advise you.
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madmike
Moderator
FEAR THE BLACK FLAG!!!!!!!!
Posts: 6579
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posted June 20, 2006 02:29 PM
Hey jaws, email me the photo of the pistons if you can and I can let you know if they are the cut one's or not! also, I do not believe a 1272 piston will fit in a 1270kit??? but I am not 100% on that either.
Megabyte, are your pistons in a Muzzy Block or did you send the block off with the pistons to be bored out?
thanks
MM
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200-MPH CLUB MEMBER!
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Megabyte
Pro
Posts: 1047
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posted June 20, 2006 02:36 PM
 Edited By: Megabyte on 20 Jun 2006 15:37
Megabyte, are your pistons in a Muzzy Block or did you send the block off with the pistons to be bored out?
My Block was sent out with the pistons.
____________
We First make our habits and then our habits make us.
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RAC4IT
Needs a job
Bergie
Posts: 3009
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posted June 20, 2006 06:39 PM
Been there, done that. http://dontbescaredracing.com/photos/misc/pistons/
1270 shown left, 1361 shown right.
Oh and, YOU'RE WELCOME! 
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jaws12r
Novice Class
Posts: 45
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posted June 21, 2006 05:47 AM
quote:
Hey jaws, email me the photo of the pistons if you can and I can let you know if they are the cut one's or not! also, I do not believe a 1272 piston will fit in a 1270kit??? but I am not 100% on that either.
MM
MM my camera just gave up on me. I am still looking for another Camera so i can post PICs cheers and by the way Great Cam Degree Kit !
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lonniemac
Expert Class
Posts: 225
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posted June 21, 2006 02:44 PM
my dealings with muzzy is that if you originally placed the order through them then they will sell parts on some kits. i have three 1270 pistons from them now that i will be ordering one of soon in order to have a spare block kit ready. i dropped a valve on one of them. i am running big block now. and i tried that with 1272 wiseco pistons in the 1270 hole and it mics out to tight. cant remember the numbers.
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jaws12r
Novice Class
Posts: 45
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posted June 23, 2006 08:53 AM
okie guys here are the pics
this is the older piston which came with my 1270 kit about 6 months back its says JE 984P
This is the NEW piston dat came with my upgrade kit it reads JE 944M
when placed together u can see a slight difference in the place where u insert the rods
there is also a difference in the grooves
Placed side by side there is also a difference in height
but in diameter they are the same the top are not re-machined in any way
HELP ME !
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rac4it
Needs a job
Bergie
Posts: 3009
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posted June 23, 2006 09:54 AM
You're screwed.
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ninja12
Needs a job
Posts: 3310
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posted June 24, 2006 08:17 AM
Surely you are not the first to blow a 1270, someone has a old style 1270 piston.
Post a wanted ad in the classified.
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