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 RZR 1065cc Big Bore Kit

1065cc Big Bore Kit

. Polaris RZR 1000

. Polaris RZR4 1000

This kit brings your RZR 1000 from 999cc to 1065cc. All of our big bore kits only use CP pistons. Although CP makes the most expensive pistons available they are the best available. If your freshening up your engine or just want more horsepower this is a great package to get you there.

-CP pistons kit (pump gas or turbo).
-Bored and plated RZR 1000 cylinder.
-Complete top end gasket kit.
-Adds 6-8 hp bottom to top.
-Works with any other mods.
-This is our most popular kit for the RZR 1000.
-Core needed see below.
About big bore kits on a RZR 1000.

Your RZR 1000 is 999cc from the factory. There are 3 different big bore kits available.
-The first is a 96mm/1065cc big bore. This is the most economical as it uses your OEM cylinder. Also a 96mm will work great with your OEM rods.
-The second is the 98mm/1102cc. This kit requires rods. The OEM rods will break with any piston over 96mm.
-The third is the 99mm/1132cc big bore kit. This is as big as you can go on the 1000. You will need rods. We prefer the 98mm as it has more material between the cylinders which keeps the head gasket sealed. We do not recommend this kit for turbo setups.

Core charge options for this kit: (We need your cylinder to make the next customer a cylinder).

1-Send us your cylinder we will then send you a big bore kit.

2-Pay the core charge of $399. We ship your kit. Send back your good cylinder core and we refund your $399 complete when we receive it.

3-Purchase cylinder with no core. This cost $399. Since you are not sending your cylinder back there is no refund on this charge.

About your core. Your core can be damaged. We typically see people purchasing this kit who have ingested dirt or ran low on oil damaging there cylinder. As long as the scoring is less than 2mm you cylinder should be a good core. If you have any questions please email us.


Billet sway bar links by Kartboy
Manual cam chain tensioner RZR 570/900/1000 RZR
Alba Racing AFR +
Power commander auto tune

$994.99 + core charge if any

RZR 1065cc Big Bore Kit

Your options above are as follows/

1: You send in your cylinder at your cost & we ship it back plus shipping charge

2: We ship your kit and refund you $300 once we receive your stock cylinder.

3: We ship your kit and you keep your cylinder.