1371cc

[1127GSXR1991]

[1127GSXR1991]

Looking to rebuild the block, currently a 1127cc. I was told to take it to a 1371cc. Will make a monster of a bike. Any other idea's?

[vizman]

turbo and gas

[Gixer1460]

You may struggle to find a 'Gorilla' block to take liners that big - APE haven't made them for probably 10+ years. Plus without extra finnage on the block it'll run bloody hot as a streetbike! Personally i'd stick at 80mm turbo pistons and a nice punchy draw through BB turbo with EFI and single throttle body!

[Havoc]

My 1340 with 40mm Lectrons and nitrous on C16 went really nicely,

for a bit.....

[R1guy]

1 hour ago, Gixer1460 said:

You may struggle to find a 'Gorilla' block to take liners that big - APE haven't made them for probably 10+ years.

Someone with some engineering skills/ contacts should arrange a group deal and commission  a batch of 10

[Fula28]

They are about as I'm sure most know! 

Just ask, Stuart warpspeed 

 

[Paulm]

Try Dave Dunlop,for a block and liners.

[cregnybaa]

I have a 83 or 84mm block and 3 pistons will check size in the morning, the cylinder is aftermarket I think the pistons are je I don't think  I am  ever going to use them so may sell if interested.

[Gixer1460]

11 hours ago, Fula28 said:

They are about as I'm sure most know! 

Just ask, Stuart warpspeed 

 

Yes - Warpspeed = 2nd to none machining but would you really want to run a dry block on the street? This is a streetbike (from the piccies?)

[Reinhoud]

Wrap a garden hose around the block and connect that to the cooling system.

[Fula28]

Agreed say what now!? 1460. Was just trying to show there available ! Street finned are availed too .i just don't have a piccy.

[Reinhoud]

Are the studs that far apart, and is there that much material around the crankcase where the liners go in, that you can put such big cylinders on on those engines?

My GS1000 has 8.25mm bigger pistons, and that's absolutely the max.

[rustychain]

1340 bandit i had was a animal 

[Gixer1460]

5 hours ago, Fula28 said:

Agreed say what now!? 1460. Was just trying to show there available ! Street finned are availed too .i just don't have a piccy.

Stop misleading the masses then LOL! Finned blocks will certainly help but they don't half look weird when compared to a std GSXR block - need surface area which is in short supply unless you want it to look aircooled!

[colinworth79]

found this block on that site a year ago . Its not going to be cheap . Crankcases opening out to except the liners , stronger rods , ported head , cams , head and case studs and pistons . On top of that new shells , bearings , seals all adds up . This engine is going to be low comp on an 85mm bore . Easy £4k can be put into something like this .

[colinworth79]

the bike in the pic looks nice and clean if it was mine rebuild the lump bore the block to 81mm with forged low comp pistons then blow through turbo kit. Easy 200 hp and loads of torque .