Athena ATV Big Bore Kits

The Athena Cylinder kits are a bolt on high perfromance replacement kit specifically designed for each application. Kits include: aluminum cylinder with nickel-carbide coating designed with widere water jackets. Forged piston with molybdenum coating, and special top end gasket kit.

 

Wiseco ATV Big Bore Kits

Kit includes: Piston, rings, wrist pin, circlips, gasket kit and nikasil lined cylinder or sleeve. 

Piston Big Bore Kits

	WISECO BIG BORE 440 SLEEVE Honda 400EX Code: 3052FA Price: $125.00 Quantity in Basket: none
Cylinder SLEEVE for big bore piston. Honda
	Hot Rods stroker piston Yamaha Banshee 64mm 373cc Code: 421-p1001 Price: $80.00 Quantity in Basket: none
requires Hot Rods stroker crankshaft #421-4111
	Hot Rods stroker piston Yamaha Banshee 64.5mm 379cc Code: 421-p1002 Price: $80.00 Quantity in Basket: none
requires Hot Rods stroker crankshaft #421-4111
	Hot Rods stroker piston Yamaha Banshee 65mm 385cc Code: 421-p1003 Price: $80.00 Quantity in Basket: none
requires Hot Rods stroker crankshaft #421-4111
	Hot Rods stroker piston Yamaha Banshee 65.5mm 391cc Code: 421-p1004 Price: $80.00 Quantity in Basket: none
requires Hot Rods stroker crankshaft #421-4111
	Hot Rods stroker piston Yamaha Banshee 66mm 397cc Code: 421-p1005 Price: $80.00 Quantity in Basket: none
requires Hot Rods stroker crankshaft #421-4111
	Hot Rods stroker piston Yamaha Banshee 66.5mm 403cc Code: 421-p1006 Price: $80.00 Quantity in Basket: none
requires Hot Rods stroker crankshaft #421-4111
	Hot Rods stroker piston kit Yamaha Raptor 660 01-05 102.0mm 719cc Code: 421-p2001 Price: $213.95 Quantity in Basket: none
requires Hot Rods stroker crankshaft, smokes any 727 kit
	Hot Rods stroker piston Yamaha Warrior YFM350X, Raptor 350 87-07 84mm 396cc Code: 421-p3001 Price: $213.95 Quantity in Basket: none
requires Hot Rods stroker crankshaft
	Hot Rods stroker piston Honda 400ex 98-06 89mm 460cc Code: 421-p4001 Price: $213.95 Quantity in Basket: none
requires Hot Rods stroker crankshaft
	Athena cylinder kit Kawasaki KFX/KLX 400 90mm 400cc 03-06, Suzuki DRZ/LTZ 400 90mm 400cc 03-08 Code: 68-4400 Price: $625.13 Quantity in Basket: none
12.2:1 standard bore
	Athena Big Bore cylinder kit Kawasaki KFX/KLX 400 94mm 430cc 03-09, Suzuki LTZ/DRZ 400 94mm 430cc 03 Code: 68-4410 Price: $653.00 Quantity in Basket: none
12.3:1 big bore Turn your ATV into a Big Bore Monster. This Big Bore Kit comes with Cylinder, piston, rings and gaskets.
	Athena cylinder kit Kymco KXR/MXU 250 78mm 287cc 03-06 big bore Code: 68-4420 Price: $669.53 Quantity in Basket: none
	Athena cylinder Big Bore kit Honda TRX450R 97mm big bore 480cc 04-05 Code: 68-4703 Price: $744.32 Quantity in Basket: none
Turn your ATV into a Big Bore Monster. This Big Bore Kit comes with Cylinder, piston, rings and gaskets
	Athena cylinder kit Honda TRX450R 94mm std bore 450cc 04-05 Code: 68-4720 Price: $678.05 Quantity in Basket: none
	Athena cylinder Big Bore kit Honda TRX450R 100mm bore 490cc 06-08 Code: 68-4740 Price: $764.18 Quantity in Basket: none
Turn your ATV into a Big Bore Monster. This Big Bore Kit comes with Cylinder, piston, rings and gaskets
	Athena cylinder kit Yamaha YFZ 450 95mm 450cc 04-06 Code: 68-4950 Price: $647.33 Quantity in Basket: none
	Athena cylinder Big Bore kit Yamaha YFZ 450 98mm big bore 478cc 04-06 Code: 68-4980 Price: $699.00 Quantity in Basket: none
Turn your ATV into a Big Bore Monster. This Big Bore Kit comes with Cylinder, piston, rings and gaskets
	WISECO BIG BORE KIT 440cc 12.5-1 COMP, HONDA TRX400EX Code: CK140 Price: $258.75 Quantity in Basket: none
ATV Big Bore kit comes with ATV piston, rings, piston pin, clips, sleeve and gaskets. Has 12.5:1 compression. Note: Wiseco offers a lower compression big bore piston but not in kit form. You would have to buy piston, gaskets, and sleeve separate.
	WISECO BIG BORE KIT 440cc 12.5-1 COMP,KAWASAKI KFX400, SUZUKI LTZ400 Code: CK144 Price: $678.96 Quantity in Basket: none
ATV Big Bore kit comes with ATV piston, rings, piston pin, clips, Cylinder and gaskets. Has 12.5:1 compression
	WISECO BIG BORE KIT 440cc 13.5-1 COMP KAWASAKI KFX400, SUZUKI LTZ400 Code: CK145 Price: $690.78 Quantity in Basket: none
ATV Big Bore kit comes with ATV piston, rings, piston pin, clips, Cylinder and gaskets. Has 12.5:1 compression
	Wiseco Big Bore Kit 500cc, Honda TRX450r 04-05 Code: CK188 Price: $843.17 Quantity in Basket: none
ATV Big Bore kit comes with ATV piston, rings, piston pin, clips, Cylinder and gaskets. Has 12.5:1 compression
	Cylinder works Complete big bore kit Honda TRX450R 04-05 +3mm 479cc Code: T73-3706 Price: $435.00 Quantity in Basket: none
New Cylinder Works big bore kit from the makers of the Pivotworks, Hotcams, and Hot Rods. Cylinder Works offers high quality cylinders that are virtually identical in appearance to OEM. Each Cylinder Works big bore kit is designed as a true drop-in with no extra machine work to engine or cases*. Kit features:Includes cylinder, piston kit and gaskets, Nickel silicon carbide plated for longer life And on sale at discount price.
	Cylinder works Complete big bore kit Yamaha YFZ450 04-08 +3mm 478cc Code: t73-3707 Price: $435.00 Quantity in Basket: none
New Cylinder Works big bore kit from the makers of the Pivotworks, Hotcams, and Hot Rods. Cylinder Works offers high quality cylinders that are virtually identical in appearance to OEM. Each Cylinder Works big bore kit is designed as a true drop-in with no extra machine work to engine or cases*. Kit features:Includes cylinder, piston kit and gaskets, Nickel silicon carbide plated for longer life And on sale at discount price.
	Cylinder works Complete big bore kit Kawasaki KFX400, Susuki LT-z400, Arctic Cat +4mm 434cc Code: t73-3708 Price: $435.00 Quantity in Basket: none
New Cylinder Works big bore kit from the makers of the Pivotworks, Hotcams, and Hot Rods. Cylinder Works offers high quality cylinders that are virtually identical in appearance to OEM. Each Cylinder Works big bore kit is designed as a true drop-in with no extra machine work to engine or cases*. Kit features:Includes cylinder, piston kit and gaskets, Nickel silicon carbide plated for longer life And on sale at discount price.
	Athena Big Bore cylinder kit Suzuki LT 450R 100mm big bore 490cc Code: 68-4470 Price: $648.50 Quantity in Basket: none
Turn your ATV into a Big Bore Monster. This Big Bore Kit comes with Cylinder, piston, rings and gaskets
	Wiseco 440 replacement piston Honda 400ex 11:1 compression 89mm Code: 4667ps Price: $126.99 Quantity in Basket: none
Wiseco 440 over bore piston replacement with 11:1 compression.You will need to resleeve cylinder. Wiseco does not offer this piston in the 440kit. You have to buy this piston and the sleeve (same sleeve as in 440kit) separate if you want to run the low compression piston. you will also need gasket kit 68-7826
	Wiseco piston kit 99mm Honda trx 450r 04-05 499cc Code: 4889ps Price: $170.00 Quantity in Basket: none
	Wiseco Piston Yamaha Grizzly 600 98-01 big bore 101mm Code: 4607P24 Price: $136.99 Quantity in Basket: none
10.75:1 compression, cylinder resleeving req'd, crank case clean up req'd