260

[25two.stroke]

LL versus PP ???

I don't personally own either, just want to know the difference.




And here's a random picture for my bare post...this my new sea pro (from last 4th of july). New motor on an old fishin boat. But...they don't make boats like they used to with SPACE to fish.

[tlwjkw]

Porting differences between a 260 and a 300 drag? [Archive] - Scream And Fly Powerboat and High Performance Powerboating Discussion Forums

us1................

[25two.stroke]

But if the LL was ported like a drag then what would be the difference between that and the SS? They would be the same powerhead with bolt-ons, right? Gasket heads, CDI...all same same but the fuel pressure and fuel map?

[ShadowFlier]

I believe, not 100% sure but a LL is a small bearing and a PP is a big bearing? Or vis versa. That is how I always understood it.

[tlwjkw]

big bearing in s3000/drag 'bout '93, maybe '94 i think?... big bearing 260 came in '96, still an LL..... everything "SS" i'm familiar with were 15" mids.. maybe not?.. porting is different in LL and PP.. even tha PP blocks can have different porting.. ie: tha 'eyebrow" drag............... ya jus don't know with merc hi perf..........

probably completely wrong with tha whole thing??.. gettin WAY to old ta try ta remember this $hit................

[25two.stroke]

SS came on whatever mid you wanted, I know that. All my research as led to what ShadowFlier said, the LL is a small bearing (early) and the PP is a big bearing (late). Aside from that they seem the same. The eyebrow was only in the SS (drag) motors, right?

Were the 260s really ported different across the years? Are the chests the same in the small bearing and large bearing motors?

[tlwjkw]

tha "SS" came on any mid??? what made it different from anything else other than a decal then???... tha LL 260 from 1991 ta 1995 had a small bearing... started in 1996 with tha BIG BEARING.... tha PP drag from 1993 up had a big bearing.. tha bearing size had nothin' ta do with what porting they had.. S3000/drag portin' could be all over tha place (jus like anything merc) but different than 260......... jus like i've said in other post, mercs Q/C leaves a lot ta be desired.. always has.. production or high performance.........

[25two.stroke]

Now I'm really confused. You are calling a PP a drag. Is that not a 260 block?

[tlwjkw]

sorry i totally screwed up... got tha letters all confused.... been a very long time.... i'm gonna quite while i'm ahead i think...

PP 260
LL 260 drag... basically justa 260.
SS 300 drag..

did you read us1's comment on these motors in tha link?..

[Charli]

Do you mean the LL Drag?

[tlwjkw]

believe tha "early" LL could have been either maybe???........

[tlwjkw]

tha letter id deal wasn't used much way back when............... it either was or it wasn't.

[Charli]

believe tha "early" LL could have been either maybe???........

Are you also saying the LL had the big bearing starting in 93' (LL/Drag), but the PP started the big bearing in 96'?

[Charli]

tha letter id deal wasn't used much way back when............... it either was or it wasn't.

10-4

[25two.stroke]

Hm. This is def got me confused. I thought the lettering directly corresponded to a certain type of block, and that the different block variations had different lettering. Its so confusing what people call the different motors, what merc calls them, and the block ID. The term drag is gettin us confused I think. Yeah I read Marles's comments. to relate that to the block stamping he is saying that:

300 - bigger exhaust chest and different porting - thats the SS block - which has always had a big bearing crank
260 (early) - LL - small bearing
260 (later) - PP - drag sized bearing

And both the PP and the LL had variances in the porting that did not correspond to the lettering?