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-   -   Scarab 29 with two Big Blocks? (https://www.offshoreonly.com/forums/scarab/322529-scarab-29-two-big-blocks.html)

ring210 01-28-2015 12:49 PM

Scarab 29 with two Big Blocks?
 
Hi,
annyboady know a Scarab29 with two big blocks?
I know i need spezial headers ( small headers ) that it works with the tramsom cut out.
My questing, can the Scarab29 handel the wight from two big blocks?
I thing one engine is around 200-300 pounds heavier then a small block.
I plan to install two 496 Ho in my 1994er Scarab 29.
Does that works?
Thanks

trc2 01-28-2015 03:09 PM

you will never get them to fit it is to tight with small blocks in there to work on i could not imagine working on two big blocks in there center line of the drive needs to be at lease 34"

nova26 01-28-2015 08:50 PM

Beam on a 29 Scarab is 76.6in. I think the AVS and other Scarabs are wider. No room in the inn...

ring210 01-29-2015 06:24 AM

Hi,
thanks.
There is enouth room in the boat.
the problem ist that the drive center lines are to small.( like trc2 sayd)
I am planning to make a new tramsom on the boat , so i can make the cut out for the drives that it works.
Or i must build extremly small headers.
My question is because the wight.
Because the big block are a lot heavier then the 350 mag that was originally in the boat.
But how it looks like that was never done before.
Will see.
Thanks

scarabman 01-29-2015 06:36 AM

I have seen a 29 with twin 502s squeezed in it in the past. It can be done. It is VERY tight though. Depending on how you put together your engines, you can come close to netting on on the weight, keeping in mind that the 350s had cast iron everything. Liberal use of lighter materials, heads, manifolds, exhaust, etc, could keep you close to even.

trc2 01-29-2015 03:37 PM

if you do redo the transom rise the x dim up 2.5 inches i did it on mine and wow did it make a huge difference in ride and handling and speed . you will have to go to a four blade prop though

humpster 01-29-2015 07:13 PM

why don't u build a couple of kick ass small blocks

nova26 01-29-2015 07:20 PM


Originally Posted by trc2 (Post 4257874)
if you do redo the transom rise the x dim up 2.5 inches i did it on mine and wow did it make a huge difference in ride and handling and speed . you will have to go to a four blade prop though

I got a see this! As much of a fan of the 29 I never seen this over the years! Do tell...:worthless_without_p :drink:

01scarab29 01-30-2015 09:14 PM

trc2,,, how much speed did you gain and what power do you have ,,, single or twins?


Originally Posted by trc2 (Post 4257874)
if you do redo the transom rise the x dim up 2.5 inches i did it on mine and wow did it make a huge difference in ride and handling and speed . you will have to go to a four blade prop though


ring210 01-31-2015 01:26 AM

Hi Humpster,
i own 2 496 HOs.
And i prefer standart engines.
I dont want blower engine in my boat.
I drive a 496 HO in my scarab 22 and it is a good powerfull engine.
I had no problems with that engine in the last 5 jears.


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