660 cylinders, what am i looking at

[fordf150]

Here is what I have....there are 2 cylinders listed for the 660. last 4 digits are 1209 and 1211. I normally order the 1209 cylinder kit since it is over $100 cheaper but a friend was curious enough to see the difference that he ponied up the extra to buy the high dollar cylinder in the hopes it may be a higher quality mahle casting instead of the standard stihl cast cylinder. no such luck, they are both stihl cylinders although the 1211 cylinder has noticeably smaller and more consistent port bevels.

I measured port heights with a caliper so these arent exact but what i found was that squish will be the same, intake timing is the same.

measurements are with a caliper from the base of the cylinder so not the most accurate but here goes.

transfers are the same from cylinder base to the bottom of the transfer, to the top the 1211 cylinder kit is .030 higher.

exhaust ports
base to the bottom of the port.

1209 cylinder is 1.548 vs the 1211 at 1.574

base to top of exhaust port

1209 cylinder is 2.179 vs 1211 is 2.185

 

[fordf150]

this is the 1122 020 1209 cylinder kit

 

[fordf150]

this is the 1122 120 1211 $320 kit
not gonna hurt anything but when you spend $300+ on a cylinder kit a casting flaw that leaves a pin hole in the cylinder wall is not what you want to see.

 

[MustangMike]

So basically there are two cylinders, one for people who want to pay more money, and one for people who want to pay less???

The Cross cylinders are not perfect, but if you clean up the flaws in them (check port bevels, etc) I believe they will out perform the OEM by a noticeable amount. The ports are generally wider.

 

[Adirondackstihl]

The 1209 kit is listed as the Aussie/NZ kit.
Interesting
Never really noticed there was 2 to choose from.

When I do a price check, they both have the same MSRP ($276.49), so someone is pulling some wool over your eyes

 

[big t double]

The 1209 kit is listed as the Aussie/NZ kit.
Interesting
Never really noticed there was 2 to choose from.

When I do a price check, they both have the same MSRP ($276.49), so someone is pulling some wool over your eyes

They are the same price. The 1209 kit comes with the mount screws....and even though it's still available, it is showing it supersedes to the 1211 kit. At least on partsmart.

 

[Adirondackstihl]

I'd be interested in seeing a paper port map made from each cylinder and superimposed upon one another.

And/or the exhaust and intake port measurements taken at the cylinder wall and at the exterior

 

[Adirondackstihl]

Regardless.....one shouldn't cost $100 more than the other IMO

 

[fordf150]

The 1209 kit is listed as the Aussie/NZ kit.
Interesting
Never really noticed there was 2 to choose from.

When I do a price check, they both have the same MSRP ($276.49), so someone is pulling some wool over your eyes

here is my price

1209 $236

1211 $314

1211 is listed as fitting the magnum, R magnum, arctic

1209 lists as fitting the 660 and 660W

 

[Adirondackstihl]

here is my price

1209 $236

1211 $314

1211 is listed as fitting the magnum, R magnum, arctic

1209 lists as fitting the 660 and 660W

My price above was MSRP
Dealer discount is less than $225

 

[MustangMike]

But ... You know someone good!!!

 

[mdavlee]

Is the piston mahle in one and KS in the other? I know one of the 066 pistons was still crazy high and the others cheaper

 

[fordf150]

Is the piston mahle in one and KS in the other? I know one of the 066 pistons was still crazy high and the others cheaper

both stihl