big bore

Anyone know if the pop up piston from Hyway is any good?

Asking $45 shipped

My 394xp was getting impossible to restart once warm so I knew the compression was getting low. Had it checked and sure enough, it was down to 100psi. In looking at the options I decided on the big bore kit from Little Red Barn...

Husqvarna 372XP OE converted to XPW (75cc) using brand new OEM Mahle P/C. Gasket delete and front ported muffler with full wrap bars and west coast spikes SEM unlimited (black) coil. $575 shipped in the ConUS unless in PST (contact me directly for exact shipping quote. PM if you have any questions.

Hello, all Im just wondering if anyone had some experience on THIS AM Big bore kit from "MachinesDoctor". there is nothing wrong with my 066 jug and piston now,but im looking to increase my displacement. If i do order from them is there anything i need/should do with it. like sanding the...

Hey guys, picked up a 1998 Jonsered 2065 for around 200 bucks. It has been sitting with fuel in it for god knows how long, but other than that it is near mint. I think it has only been started a handful of times by the look of it. I was going to change the fuel filter, do a carb kit on it and...

Hey all, on the verge of buying a 372xp xtorq, not sure if you can buy the non XT anymore or which is better, but I was thinking to put a big bore kit in it, and lightly porting it also. and I imagine the ignition would need to be adjusted with these mods also. Living in B.C. Canada we have...

Dolmar 6400 series any cylinder Husqvarna 372 series (x torq or not) any cylinder Ok to clarify I'm not talking pop up pistons and running race fuel. I'm talking what a guy with grinding/polishing tools, a timing wheel and possibly cutting the jug down to reduce squish can achieve between these...

I have a very low hour MS441C-M that had a tree dropped on it and a few cooling fins were broken off the head, in addition to other damage. With the fins being broken, I will need a new head to prevent over heating issues. As i priced things out, I have found several big bore kits that are...

Took the big bore Dolomitey out and finally cut a good tree with it. 28" bar. Stump is about 33". Didn't have my tape, only bar to use. Hard maple and no issue! Realized how piggish she is on fuel, but that's some wood to swing thru. Cut up tree today. First 5 blocks solid, then the old hollow...

Hey guys, I am brand new to this site and looking for some guidance on a new project of mine. I have an old 371xp husqvarna that cut it's last log. I purchased a big bore kit from huztl and currently in the process of rebuilding. I have the crank together but the crankshaft seems really tight...