HPE 4mil "bolt in" stroker kit

[holeshot]

Polaris rods are 136mm long and use a big pin (22mm) on the piston end. These appear to be Kawasaki small pin by ADR

These use yamaha writs pin size. The big end is kawi with thrust washers. We use custom stepped big end pins, custom thrust washers and custom rods on the 4 mil bolt in.

 

[holeshot]

Stock 701 81x72 =742cc
82x72=760.5cc
83x72=779.1
Stock 760 84x72=798cc
85x72=817.1cc
86x72=836.5cc

 

[Quinc]

http://www.x-h2o.com/index.php?threads/yamaha-62t-61x-displacement-vs-bore-stroke-combinations.5136/
Displacement vs. Bore and Stroke Combinations for Yamaha 62T/61X-Based Motors

All bore and stroke units in millimeters (mm)


Bore OEM cc +4mm cc +5mm cc +6mm cc +8mm cc +10mm cc


81.0 68 701 72 742 73 752 74 763 76 783 78 804
81.5 68 709 72 751 73 762 74 772 76 793 78 814
82.0 68 718 72 760 73 771 74 782 76 803 78 824
82.5 68 727 72 770 73 780 74 791 76 813 78 834
83.0 68 736 72 779 73 790 74 801 76 822 78 844
83.5 68 745 72 789 73 799 74 810 76 832 78 854
84.0 68 754 72 798 73 809 74 820 76 842 78 865
84.5 68 763 72 808 73 819 74 830 76 852 78 875
85.0 68 772 72 817 73 828 74 840 76 863 78 885
85.5 68 781 72 827 73 838 74 850 76 873 78 896
86.0 68 790 72 836 73 848 74 860 76 883 78 906
86.5 68 799 72 846 73 858 74 870 76 893 78 917
87.0 68 808 72 856 73 868 74 880 76 904 78 927
87.5 68 818 72 866 73 878 74 890 76 914 78 938
88.0 68 827 72 876 73 888 74 900 76 924 78 949
88.5 68 837 72 886 73 898 74 910 76 935 78 960
89.0 68 846 72 896 73 908 74 921 76 946 78 970
89.5 68 856 72 906 73 919 74 931 76 956 78 981
90.0 68 865 72 916 73 929 74 942 76 967 78 992
90.5 68 875 72 926 73 939 74 952 76 978 78 1003
91.0 68 885 72 937 73 950 74 963 76 989 78 1015
91.5 68 894 72 947 73 960 74 973 76 999 78 1026
92.0 68 904 72 957 73 971 74 984 76 1010 78 1037

 

[B_RAD_BALLA]

@zyxwvu44

 

[westjon86]

Is this kit for 61x cylinders or just 62t/64x?

 

[EddieGigoWatts]

Works on 61x to 64x,, pretty sure
Should work on a 62t 701
just purchased a HPE kit ,going to be running a 64x 760 with a single 48
62t case motor
To replace my 760 single 46

 

[jetfreak78]

Wow, what a beautiful price for this kit! Here in europe for only an adr stroker crankshaft (+4/72mm/125mm rods) you have to pay ~ 1.000,-€ (~1.135,-$)

 

[McDog]

Just for 62t/64x. It's correcting the timing on these.

@holeshot please confirm

 

[Fro Diesel]

Nice well put together stroker kit
So a 701=?
And a 760=?
Matt do you think a single 48
Would Work with a 760 cylinder .
Been running a single 46 on my 760
For almost 2 years

Of course a single 48 will work, but dual carbs will give you gains no matter what your setup or which HPE motor you get.

 

[holeshot]

Yes the kit works on 61x. The 61x kit comes with domes with less recess than the 62t kit. I did not want to reduce transfer timing on the 61x. The kit works great on a stock 61x and even better on ported 61x.

 

[EddieGigoWatts]

Of course a single 48 will work, but dual carbs will give you gains no matter what your setup or which HPE motor you get.

Very true I just don't want to deal
With the head aches of dual carbs

 

[EddieGigoWatts]

Got my kit very professional packed
I just need to get my cylinder to HPE

 

[joecef]

^^^^its like nudie magazine day^^

 

[holeshot]

4 mil long rod runs xlnt

 

[sneds]

Awesome looking Blaster! Love the paint.

Sent from my E6853 using Tapatalk

 

[kid crowe]

Will this work on 701 61x cases with a 61x cylinder

 

[Roseand]

Will this work on 701 61x cases with a 61x cylinder

Yes it sure will!

Sent from my SM-G920V using Tapatalk

 

[holeshot]

Will this work on 701 61x cases with a 61x cylinder

Yes i have 4 mil kits for 61x 62t 701 and 760.

 

[Roseand]

Well, sent holeshot a 760 cylinder for him to work some magic on.. And one of these 4mil kits is heading my way too

Sent from my SM-G920V using Tapatalk

 

[Lumpy]

Well, sent holeshot a 760 cylinder for him to work some magic on.. And one of these 4mil kits is heading my way too

Sent from my SM-G920V using Tapatalk

Bout time.