Offshoreonly.com

Offshoreonly.com (https://www.offshoreonly.com/forums/)
-   General Q & A (https://www.offshoreonly.com/forums/general-q-20/)
-   -   standard deck to a tall deck (https://www.offshoreonly.com/forums/general-q/322575-standard-deck-tall-deck.html)

ezstriper 01-30-2015 08:11 AM

motor mounts ?? nothing changes down low...and you can't just jack the engine around for more clearance....

bigboat28 01-30-2015 08:14 AM


Originally Posted by delsol (Post 4258044)
FYI I have a set of stainless marine gen 2 manifolds and tails that have been modified for tall decks out of standard bravo exhaust locations...just a matter of cutting and reweld tails
Did for my 28 apache....dry to the tip
Can't see why you would change mounts, that would lead to transom assemblies being moved also...


Delsol, so you put tall decks in your 28 apache? Did you use the same motor mounts, bell housing and everything else? The only thing you had to change was exhaust? How much and how is it off or different?

F-2 Speedy 01-30-2015 08:21 AM

there is no difference in the bellhousing bolt pattern, STD deck or tall, or small block for that matter

ThisIsLivin 01-30-2015 08:23 AM

The 10.2 block will move the heads up and out, if you are running solid pipe to the tip, you will need to move the holes in the transom accordingly. Stick with a 9.8 block, you can go to 572 in a standard 9.8 block.

bigboat28 01-30-2015 08:57 AM

If they are 5/8 wider, that means each exhaust pipe moves about 5/16 farther out correct? How much taller is the tall deck?

delsol 01-30-2015 09:16 AM

bigboat. yes i ran to 588 cu na tall decks in it. they were tight but got them to fit. i did not change transom holes at all just cut flanges on the tails and rewelded them to fit. with the AFR heads mine were roughly 3/4 " wider and taller. we fly cut the mating surface on the manifolds a bit also to tip the manifolds closer to the valve covers

572 out of a short deck is not advisable btw. max is 540 to have a normal setup

bigboat28 01-30-2015 09:58 AM


Originally Posted by delsol (Post 4258173)
bigboat. yes i ran to 588 cu na tall decks in it. they were tight but got them to fit. i did not change transom holes at all just cut flanges on the tails and rewelded them to fit. with the AFR heads mine were roughly 3/4 " wider and taller. we fly cut the mating surface on the manifolds a bit also to tip the manifolds closer to the valve covers

572 out of a short deck is not advisable btw. max is 540 to have a normal setup

Pm sent

delsol 01-30-2015 10:00 AM

and replied... lol

delsol 01-30-2015 10:00 AM

feel free to call me if you want

5one9- 919-zero 878

dave

bigboat28 01-30-2015 10:13 AM

I will get some measurements this afternoon.


All times are GMT -5. The time now is 08:28 PM.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.