real world gains with factory ported cylinders.

[Maximuimwedgehead]

Stock bottom end looking to build the top end this winter.. talked with Fast jeff and hes gonna fix me up I believe.. probably get tge play dune port.... add a cool head, adjustable timimg plate, gforce reeds.... pretty much stock overvbored engine curently. Has fmf gold series exhaust k and n filter.. wonering if this thing will run decent. Probably keep stock bottom end for now.

[dirtydownunder]

It will, an easy 15-20HP over a stock, piped banshee.

Get the crank trued and welded.

[special06shee]

X2 on the crank.. But yes it will run very strong! You will like it.

[n2otoofast4u]

Porting is the #1 bang for buck!

[rjdgriff]

Get better pipes and it will be a blast

[bluebanshee98]

True and weld crank. Buy the stock stroke cub cylinders for sale on here and get some CPI or shearer pipes. Pods timing plate Ect. Boom much better

[Pastrykiller]

I have a play bike that is a stock stoke crank with drag ported stock cylinders. This thing flat out hauls the mail for what it is. Peaky and always provides a grin on your face if you ride it like you stole it.

[camatv]

welded crank, better main bearings, billet basket with clutch upgrade. plus transmission upgrade is a must.  at least if i built it it would be...

[rjdgriff]

I ran an all stock tranny on my 421 serval with no problems at all

[camatv]

then why did you ask about getting the trans upgraded??   

 

i'm sure there are peeps on here that say  i ran my _______ ( random motor) with all stock clutch, trans, non welded crank, and completely stock bottom end and it was fine..  i know plenty of shops that never even recommend that stuff..  until after there are problems.  i personally think there are more posts about failures from lack of a good build in this forum than any other.  Almost EVERY issue in the help sections and --help me my ____ is fucked up! --  posts are results of cutting corners. almost all the others are maintenance related.  or just plain ole shitty parts failures.  ( hey  SH  it happens)

 

of course  this is my opinion..  i dont build unreliable crap...

[rjdgriff]

then why did you ask about getting the trans upgraded??

 

i'm sure there are peeps on here that say i ran my _______ ( random motor) with all stock clutch, trans, non welded crank, and completely stock bottom end and it was fine.. i know plenty of shops that never even recommend that stuff.. until after there are problems. i personally think there are more posts about failures from lack of a good build in this forum than any other. Almost EVERY issue in the help sections and --help me my ____ is fucked up! -- posts are results of cutting corners. almost all the others are maintenance related. or just plain ole shitty parts failures. ( hey SH it happens)

 

of course this is my opinion.. i dont build unreliable crap...

I had asked you about it before because I was planning on a 10mil serval but since I just sent the motor with Cameron at the dunes I'm just having him do the tranny. With the 4mil serval it worked perfectly but I knew I would need to do something different for the 10