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Bow Tie Cam Shopping (RH)

Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=19575
Printed Date: November-15-2024 at 7:20pm


Topic: Bow Tie Cam Shopping (RH)
Posted By: Whitfield
Subject: Bow Tie Cam Shopping (RH)
Date Posted: September-26-2010 at 6:51pm
Shopping for a RH rotation Chevy 350 cam.

No good leads yet. Cam MFGs are closed...   

My choice for engines are:

Pre 86 first gen

or

1997 Vortec Roller cam.    

Vortec roller cam with GM part # list for over $600 online with none found so far.


Price and availability will determine my next move as I've found a fresh built (Stock) marine Rh long block for under $1k (with cam).     

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Michael ....    

I'm the black sheep ~ 1984 Dixie 299 Super Skier (350 Chev PCM / counter rotation / Velvet drive) Open Bow.



Replies:
Posted By: Fl Inboards
Date Posted: September-26-2010 at 7:24pm
PCM Part number RA050022 RH 5.7 97/later $476.00 plus shipping.
Florida Inboards inc.
floridainboardsatmsndotcom.
I can only assume it is a roller cam but will find out for sure!

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Hobby Boats can be expensive when the hobbyist is limited on their own skill and expertise.




1993 Shamrock "fat" 20. 2008 Nautique 196 5.0


Posted By: Whitfield
Date Posted: September-27-2010 at 12:58pm
Might look to see if I can substitute a RA050012 in the Vortec. If not then I know I can build the old block and swap for the Vortec heads.

I need to research if my 1984 cam/crank gear drive set will work on the 97 Vortec cam/crank.


Lunati can grind me a standard flat tappet CR cam for just under $200

Crane doesn't do CR cams any more.

-------------
Michael ....    

I'm the black sheep ~ 1984 Dixie 299 Super Skier (350 Chev PCM / counter rotation / Velvet drive) Open Bow.


Posted By: uk1979
Date Posted: September-27-2010 at 5:54pm
Whitfield, have a look on the Melling web site they run out standard RH cams for Chevy's, cost is low here so must be in the USA.

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Lets have a go
56 Starflite
77 SN
78 SN
80 BFN


Posted By: Whitfield
Date Posted: September-27-2010 at 6:24pm
~ ~ ~ Thanks UK 1979, I'll take a look. I'm finding lots of listing with very little in stock. Looks like the economy has killed off 80%+ parts inventory.

Can anyone confirm the RH vortec cam timing assembly.

It looks to be chain drive as where all previous GM Small block models were gear drive. I say this because I find a parts breakdown for RH rotation that includes cam and distributor gear but no new timing set.



Intake $200 / Cam Flordia Inboards $500 / New RWP $175
=$900 + just to swap to the Vortec   

~~~~ $900 + Building the engine ... Gotta think about that one...

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Michael ....    

I'm the black sheep ~ 1984 Dixie 299 Super Skier (350 Chev PCM / counter rotation / Velvet drive) Open Bow.


Posted By: Whitfield
Date Posted: September-27-2010 at 6:50pm
Unless I'm seeing it wrong ~ ~

Melling's Marine catalouge only offers the 96 and earlier flat tappet (Non roller) cam in counter rotation.




-------------
Michael ....    

I'm the black sheep ~ 1984 Dixie 299 Super Skier (350 Chev PCM / counter rotation / Velvet drive) Open Bow.


Posted By: Whitfield
Date Posted: September-27-2010 at 7:05pm
Just missed a NEW Melling 22125 on Ebay for less then   $25   

-------------
Michael ....    

I'm the black sheep ~ 1984 Dixie 299 Super Skier (350 Chev PCM / counter rotation / Velvet drive) Open Bow.


Posted By: uk1979
Date Posted: September-27-2010 at 7:17pm
Whitfield,Have a look at these Cloyes BY2534 Cam and BY2535 Crank you need to find out if there fit on a Vortec roller cam,can't be sure but the Vortec is different.Yes if you are thinking of going RH full vortec engine then its $$$ keep the cost down its old type block with vortec heads,or just go standard LH vortec engine and use the PCM 1.23 gearbox as the money you save on the rebuild gets you well on the way to a new box or a good rebuilt one and still have the prop going the right way.

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Lets have a go
56 Starflite
77 SN
78 SN
80 BFN


Posted By: Whitfield
Date Posted: September-28-2010 at 7:15pm
I can't find any reference to the gears fitting the Vortec cam ~ Looks like they don't.

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Michael ....    

I'm the black sheep ~ 1984 Dixie 299 Super Skier (350 Chev PCM / counter rotation / Velvet drive) Open Bow.


Posted By: Fl Inboards
Date Posted: September-28-2010 at 7:43pm
It,s a double roller Timing chain in The RH Vortec Chevy, we just had one (08 in a 79 Ski Nautique)apart yesterday and got it back running this morning, Stephen is finializing for a run at the lake tomorrow morning.

-------------
Hobby Boats can be expensive when the hobbyist is limited on their own skill and expertise.




1993 Shamrock "fat" 20. 2008 Nautique 196 5.0


Posted By: Whitfield
Date Posted: September-29-2010 at 11:16am
Thanks Jody! That confirms my suspicions.

I'm working to source out the remaining counter rotation (marine) acessories. My engnie is a 97 Truck vortec that I'll need refresh and to convert.

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Michael ....    

I'm the black sheep ~ 1984 Dixie 299 Super Skier (350 Chev PCM / counter rotation / Velvet drive) Open Bow.


Posted By: eric lavine
Date Posted: September-30-2010 at 10:03am
remember to flip them pistons, its a must
make sure you have a boss to run a fuel pump, or you will be going to an electric one

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"the things you own will start to own you"


Posted By: Whitfield
Date Posted: September-02-2012 at 10:36am


http://howellefi.com/adaptor-o2-sensor-for-marine-use.html" rel="nofollow - Closed loop efi (O2 sensor install kit)

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Michael ....    

I'm the black sheep ~ 1984 Dixie 299 Super Skier (350 Chev PCM / counter rotation / Velvet drive) Open Bow.


Posted By: baitkiller
Date Posted: September-14-2012 at 7:02pm
A left hand prop is easier and cheaper. I Know I know I know.. shut up and sit down.

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Jesus was a bare-footer.............



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