TB 160 BBK

[JR]

I just acquired a GPX 125 engine for a 100 bucs, and a pitbike came with it. But its seized so i will be replacing the cylinder and head. Heres what i had in mind, running the TB 160 BBK with a hi-comp piston and buying a stock head. I would get the big valve head, but for 250 bucs i cant afford it. So I wanted to know if it was ok to run the 160 bore kit with the stock head.

http://www.ahpminis.com/store/product_info.php?cPath=26_90&products_id=731

http://www.ahpminis.com/store/product_info.php?cPath=26_92&products_id=688

oh and here what i acquired for 100 bucs, its a pitster pro

[briansX19haulsass]

ur gonna really need to port it out and get a new carb

[JR]

well i have mikuni vm26 so thats what will be going on, and porting im not to confident about as im use to 2-strokes but i could give it a shot if i knew where and how much

[Blitz$M.Inc.$]

right this second my 146 has the stock head on it because i bent the exhaust valve in the race head
it is nowhere near as bad as it was
the head really makes alot of difference
if i were you, id get a lifan head and a 146 kit
i do not like the 160 kits for the 125 block, look at the cylinder, the hole is right on the edge of the combustion chamber
i guess they work good but i like the 146 myself, i also have a 1mm base gasket to avoid clearance issues
i would bet that the 160 piston would hit the stock head valves

[JR]

thanks blitz i just realized how close the holes were to the chamber, this is the lifan head right? I like the price!
http://www.ahpminis.com/store/product_info.php?cPath=26_92&products_id=377

and i didnt find the 146 kit, if you could post the link that would be great

thanks for the help!

[Blitz$M.Inc.$]

https://s.p6.hostingprod.com/@www.staggsminis.com/ssl/store/product_info.php?cPath=66&products_id=320&osCsid=099973dbddc254744549cbcff17765b6
all i could find right this second, it seems to be pretty rare now

[JR]

im about to order the lifan head but what size cam sprocket do i need, 28 or 32 tooth?