4mil or port?

[007banshee]

Hey guys i have another build im starting soon, id like to build this engine a little more than the one i just finished- stock engine and carbs, +4 timing, reeds,fmf pipes/silencers, bored .60 over. The next one i am thinking 4mill or get it trail/play ported. Which would be the best bang foe my buck and reliable for trails. 4mill require new or shaved head, bigger base gasket and a 4mill welded crank? Anything else?

thanks

[Bones30]

I was recently in the same boat. What I gathered was porting the motor would be get me close to a 4 mil power (assuming stock cylinders) for a little less money than a 4mil. A 4mil would cost a little more but would yield more power and might be a little more forgiving due to displacement. I ended up finding some used cubs that I installed but I was leaning towards the 4mil, I also liked that I could upgrade cylinders down the road. Just my .02, good luck.

[VoOK]

Just get a ported 4mil and call it a day........

[guns4children]

Get a 4 mil crank and get your stock cylinders ported for the stroke

[ClayAiken]

Going 4mil will give you many other possibilities down the road for more and more power.

[AKheathen]

not to mention, if you port for stock stroke, then go 4mill, you are not really going to be able to re-port trail on the 4mill. it will be an aggresssive dune, or higher rpm port you would be stuck with. i would go 4mill first. torque across the board, then port fot the 4mill. you can even budget it, and start with the kit, and use the spacer plate, then save up and buy a head/domes, so you can ditch the spacedr plate, and then finally port it. in the end, it is about 1200 to do a proper 4mill.

[CFH87]

Get it ported for 4mil or stock stroke it'll run hard. Send it to hjr kevin builds monsters...

[wfobasheeboy]

not to mention, if you port for stock stroke, then go 4mill, you are not really going to be able to re-port trail on the 4mill. it will be an aggresssive dune, or higher rpm port you would be stuck with. i would go 4mill first. torque across the board, then port fot the 4mill. you can even budget it, and start with the kit, and use the spacer plate, then save up and buy a head/domes, so you can ditch the spacedr plate, and then finally port it. in the end, it is about 1200 to do a proper 4mill.

 

^^^^X2^^^^

This make the most sense if you are on a budget.

 

I am building a second motor right now too. It also will be a 4mill . From what I read the 4mill is the best bang for the buck for great power. So if you are building spare or just a second motor for more power then save the money & do a 4mill with the port job of your choice. Just my .02

[007banshee]

Ok thanks guys for the advice, 4mill then port it is. What cranks are most using hot rods? Those come welded? If I use a spacer plate i can still use the stock head from what i have read. I am at 900ft for elevation, 20cc domes work alright?

[2004LEBanshee]

Yes it comes welded but not that well. I say get it rewelded and add max load bearings

[Larry's Shee]

http://www.bansheedepot.com/proddetail.asp?prod=15%2D5758 this is what I have with stock head

[mike0chek]

yep, if your gonna do one you might as well do the other