x dimension is lowering the drives in relationship to the transom, that doesnt affect the drive height itself...

i may be wrong.

nickslick x dim is the prop shaft to the tansom when using the imco 2" shortend lowers this will raise the x 2"

The X dim. is the normal stock mounting height of the drive. raising the x dim. raises the drive. Raising the drive means you don't have to trim as high to cavitate the prop for max speed. Also with a higher drive height your not wasting HP pushing the transom deeper into the water. The only possible problem with the higher drive height is loss of crusing speed due to prop slippage.

Billy here
1998 22 scarab 454
72 mph, still pretty stock, trying to get shore to buy it so I can get an apache or a cig,
From daytona beach
I would love to hit a Scarab get together.
Hey lets do it in FLA
I dont want to go in the ice water.

91, 31 scarab 454 mag's not nere fast enough.
We boat on lake michigan.

1979 30' ScarabII T454/330 with Hardin P-1000 offshore exhaust's, holley intakes and carbs, best speed to date,66mph on gps with 3/4 tank of fuel, not to bad for a classic....usually boat out of Muskegon on Lake Michigan, boat is for sale now dealing on another Wellcraft ....Fred

1983 Scarab-III new 502's TRS 23 pitch Mirage plus, StainlessMarine exaust. zero efforts , new paint, interior swim platform...65mph on gps..rack store Downtown Cleveland ..run ln lake Erie....I'm a bay kinda guy..." Put in bay in the summer Glen beigh(rehab clinic) in the winter"

1997 26' Scarab
675hp 540 /w CMI headers,dry pipes
best speed to date 80.1 gps
I want to put 12 set back box w/2" shorter
Imco lower , hopefully I will pick up another
3-4mph .

Proud owner of:

1996
29' Scarab
502MPI Whipplesupercharged
Stainless Marine Exhaust

650HP
Speed: Still dialing in with props!!

1988 28 excel--450hp-70mph-all redone--for sale too--in ct.---john