660 Raptor

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Here's what we offer for the 660 Yamaha Raptor

 Stroked Big Bore Kits from 719cc to 770cc, Stroker Crankshafts from 4 - 5mm, Custom 8.0:1 - 12.5:1  pistons , Carrillo rod, Cylinder head port & polishing,  oversize Mega Flow intake and exhaust valves, Titanium retainers, high RPM springs, and many choices of camshafts

 

 

Sand Blaster:

Super toque with increased mid-range and top end, (designed for up hill sand drags and mud bogs)

Duration na/na Lift 11.50/10.9mm

 

Street Sweeper:

Full race, upper mid-range and top end performance works best with 12.5:1 piston ( designed for street / dirt drags,  long flat track)

 Duration 292/294 Lift 11.50/10.48mm 

   

 Pricing

 

Port & Polish                                                                                  $550.00

Custom Mega Flow  oversized valves                                         $  42.00 each

Valve Springs & Titanium Retainers                                           $180.00   

Camshaft  Custom Grind                                                              $350.00 

102mm 11:1 piston                                                                        $250.00

102mm 12.5:1 piston                                                                     $250.00

105mm 12.5:1 piston  (drag race only)                                        $250.00

Carrillo rod                                                                                     $225.00

4mm Stroker Crankshaft   New   Raptor                                     $425.00

5mm Stroker Crankshaft  Raptor core needed                          $620.00

Complete Engine Rebuilding   (Tear down & Reassembly)     $550.00

 

 

Plated cylinder option + 3.2 Hp

 

Install oversize aluminum sleeve and fit piston                          $275.00

aluminum sleeve                                                                            $175.00

Bore Cases                                                                                     $190.00

Nikasil plating                                                                                $220.00

 

 

Note: We are very busy and it's hard to answer questions via email.  Please call or email your phone # and the best time for us to call you.

Phone 618-949-3898

MADMAN ENGINEERING

 RR 2 Box 201A Lake Glendale Rd.

 Golconda, Illinois   62938

info@madmanengineering.com

DIRT, ASPHALT, SNOW
 & WATER

 are EVIL and

!!! Must be Punished !!!

Click on link below for more info

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